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Stieb SM, Cortesi F, Mitchell L, Jardim de Queiroz L, Marshall NJ, Seehausen O. Short-wavelength-sensitive 1 ( SWS1) opsin gene duplications and parallel visual pigment tuning support ultraviolet communication in damselfishes (Pomacentridae). Ecol Evol 2024; 14:e11186. [PMID: 38628922 PMCID: PMC11019301 DOI: 10.1002/ece3.11186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 04/19/2024] Open
Abstract
Damselfishes (Pomacentridae) are one of the most behaviourally diverse, colourful and species-rich reef fish families. One remarkable characteristic of damselfishes is their communication in ultraviolet (UV) light. Not only are they sensitive to UV, they are also prone to have UV-reflective colours and patterns enabling social signalling. Using more than 50 species, we aimed to uncover the evolutionary history of UV colour and UV vision in damselfishes. All damselfishes had UV-transmitting lenses, expressed the UV-sensitive SWS1 opsin gene, and most displayed UV-reflective patterns and colours. We find evidence for several tuning events across the radiation, and while SWS1 gene duplications are generally very rare among teleosts, our phylogenetic reconstructions uncovered two independent duplication events: one close to the base of the most species-rich clade in the subfamily Pomacentrinae, and one in a single Chromis species. Using amino acid comparisons, we found that known spectral tuning sites were altered several times in parallel across the damselfish radiation (through sequence change and duplication followed by sequence change), causing repeated shifts in peak spectral absorbance of around 10 nm. Pomacentrinae damselfishes expressed either one or both copies of SWS1, likely to further finetune UV-signal detection and differentiation. This highly advanced and modified UV vision among damselfishes, in particular the duplication of SWS1 among Pomacentrinae, might be seen as a key evolutionary innovation that facilitated the evolution of the exuberant variety of UV-reflectance traits and the diversification of this coral reef fish lineage.
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Affiliation(s)
- Sara M. Stieb
- Center for Ecology, Evolution and BiogeochemistryEAWAG Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
- Institute for Ecology and EvolutionUniversity of BernBernSwitzerland
- Queensland Brain InstituteThe University of QueenslandBrisbaneQueenslandAustralia
| | - Fabio Cortesi
- Queensland Brain InstituteThe University of QueenslandBrisbaneQueenslandAustralia
- School of the EnvironmentThe University of QueenslandBrisbaneAustralia
| | - Laurie Mitchell
- Queensland Brain InstituteThe University of QueenslandBrisbaneQueenslandAustralia
- Marine Eco‐Evo‐Devo UnitOkinawa Institute of Science and TechnologyOnna sonOkinawaJapan
| | - Luiz Jardim de Queiroz
- Center for Ecology, Evolution and BiogeochemistryEAWAG Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
- Institute for Ecology and EvolutionUniversity of BernBernSwitzerland
| | - N. Justin Marshall
- Queensland Brain InstituteThe University of QueenslandBrisbaneQueenslandAustralia
| | - Ole Seehausen
- Center for Ecology, Evolution and BiogeochemistryEAWAG Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
- Institute for Ecology and EvolutionUniversity of BernBernSwitzerland
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2
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Feller AF, Peichel CL, Seehausen O. Testing for a role of postzygotic incompatibilities in rapidly speciated Lake Victoria cichlids. Evolution 2024; 78:652-664. [PMID: 38288653 DOI: 10.1093/evolut/qpae007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/22/2023] [Accepted: 01/29/2024] [Indexed: 03/27/2024]
Abstract
Intrinsic postzygotic hybrid incompatibilities are usually due to negative epistatic interactions between alleles from different parental genomes. While such incompatibilities are thought to be uncommon in speciation with gene flow, they may be important if such speciation results from a hybrid population. Here we aimed to test this idea in the endemic cichlid fishes of Lake Victoria. Hundreds of species have evolved within the lake in <15k years from hybrid progenitors. While the importance of prezygotic barriers to gene flow is well established in this system, the possible relevance of postzygotic genetic incompatibilities is unknown. We inferred the presence of negative epistatic interactions from systematic patterns of genotype ratio distortions in experimental crosses and wild samples. We then compared the positions of putative incompatibility loci to regions of high genetic differentiation between sympatric sister species and between members of clades that may have arisen in the early history of this radiation, and further determined if the loci showed fixed differences between the closest living relatives of the lineages ancestral to the hybrid progenitors. Overall, we find little evidence for a major role of intrinsic postzygotic incompatibilities in the Lake Victoria radiation. However, we find putative incompatibility loci significantly more often coinciding with islands of genetic differentiation between species that separated early in the radiation than between the younger sister species, consistent with the hypothesis that such variants segregated in the hybrid swarm and were sorted between species in the early speciation events.
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Affiliation(s)
- Anna F Feller
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, United States
- Arnold Arboretum of Harvard University, Boston, MA, United States
| | - Catherine L Peichel
- Division of Evolutionary Ecology, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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3
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Alila DO, Ten Brink H, Haesler M, Seehausen O. Ecological character displacement among Nothobranchius annual killifishes in Tanzania. Evolution 2024; 78:679-689. [PMID: 38241699 DOI: 10.1093/evolut/qpae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 12/22/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
Divergent ecological character displacement (ECD) is the competition-driven divergence in resource use-related phenotypic traits between coexisting species. It is considered one of the primary drivers of ecological diversification and adaptive radiation. We analyzed phenotypic and ecological variation in 2 African annual killifish species of the genus Nothobranchius: N. eggersi and N. melanospilus in sympatry and N. melanospilus in allopatry. Our aim was to test whether allopatric and sympatric populations of N. melanospilus differ morphologically from each other and from N. eggersi and examine whether these differences are consistent with the predictions of ECD. We find that sympatric N. melanospilus differ from allopatric N. melanospilus and differ from N. eggersi more strongly than the latter. Our data satisfy four criteria for demonstrating ECD: Differences in phenotypes between allopatric and sympatric N. melanospilus are greater than expected by chance; the divergence pattern between allopatric and sympatric N. melanospilus results from an evolutionary shift rather than from ecological sorting; morphological differences observed reflect differences in resource use; and, lastly, sites of allopatry and sympatry do not differ in food resource availability or other ecological conditions. Our results suggest that competition is the main driver of the observed divergence between two N. melanospilus populations.
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Affiliation(s)
- David O Alila
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution, and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
- Department of Biological Sciences, Mkwawa University College of Education, University of Dar es salaam, Iringa, Tanzania
| | - Hanna Ten Brink
- Division of Aquatic Ecology and Evolution, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology, Royal Netherlands Institute for Sea Research (NIOZ), Texel, The Netherlands
| | - Marcel Haesler
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution, and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution, and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
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4
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Peñalba JV, Runemark A, Meier JI, Singh P, Wogan GOU, Sánchez-Guillén R, Mallet J, Rometsch SJ, Menon M, Seehausen O, Kulmuni J, Pereira RJ. The Role of Hybridization in Species Formation and Persistence. Cold Spring Harb Perspect Biol 2024:a041445. [PMID: 38438186 DOI: 10.1101/cshperspect.a041445] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Hybridization, or interbreeding between different taxa, was traditionally considered to be rare and to have a largely detrimental impact on biodiversity, sometimes leading to the breakdown of reproductive isolation and even to the reversal of speciation. However, modern genomic and analytical methods have shown that hybridization is common in some of the most diverse clades across the tree of life, sometimes leading to rapid increase of phenotypic variability, to introgression of adaptive alleles, to the formation of hybrid species, and even to entire species radiations. In this review, we identify consensus among diverse research programs to show how the field has progressed. Hybridization is a multifaceted evolutionary process that can strongly influence species formation and facilitate adaptation and persistence of species in a rapidly changing world. Progress on testing this hypothesis will require cooperation among different subdisciplines.
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Affiliation(s)
- Joshua V Peñalba
- Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Center for Integrative Biodiversity Discovery, 10115 Berlin, Germany
| | - Anna Runemark
- Department of Biology, Lund University, 22632 Lund, Sweden
| | - Joana I Meier
- Tree of Life, Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, United Kingdom
- Department of Zoology, University of Cambridge, Cambridgeshire CB2 3EJ, United Kingdom
| | - Pooja Singh
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Center for Ecology, Evolution & Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), CH-8600 Kastanienbaum, Switzerland
| | - Guinevere O U Wogan
- Department of Integrative Biology, Oklahoma State University, Stillwater, Oklahoma 74078, USA
| | | | - James Mallet
- Organismal and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Sina J Rometsch
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06511, USA
- Yale Institute for Biospheric Studies, Yale University, New Haven, Connecticut 06511, USA
| | - Mitra Menon
- Department of Evolution and Ecology, University of California Davis, Davis, California 95616, USA
| | - Ole Seehausen
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Center for Ecology, Evolution & Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), CH-8600 Kastanienbaum, Switzerland
| | - Jonna Kulmuni
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
- Organismal and Evolutionary Biology Research Programme, University of Helsinki, Biocenter 3, Helsinki, Finland
| | - Ricardo J Pereira
- Department of Zoology, State Museum of Natural History Stuttgart, Stuttgart 70191, Germany
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5
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Khaliq I, Rixen C, Zellweger F, Graham CH, Gossner MM, McFadden IR, Antão L, Brodersen J, Ghosh S, Pomati F, Seehausen O, Roth T, Sattler T, Supp SR, Riaz M, Zimmermann NE, Matthews B, Narwani A. Warming underpins community turnover in temperate freshwater and terrestrial communities. Nat Commun 2024; 15:1921. [PMID: 38429327 PMCID: PMC10907361 DOI: 10.1038/s41467-024-46282-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/21/2024] [Indexed: 03/03/2024] Open
Abstract
Rising temperatures are leading to increased prevalence of warm-affinity species in ecosystems, known as thermophilisation. However, factors influencing variation in thermophilisation rates among taxa and ecosystems, particularly freshwater communities with high diversity and high population decline, remain unclear. We analysed compositional change over time in 7123 freshwater and 6201 terrestrial, mostly temperate communities from multiple taxonomic groups. Overall, temperature change was positively linked to thermophilisation in both realms. Extirpated species had lower thermal affinities in terrestrial communities but higher affinities in freshwater communities compared to those persisting over time. Temperature change's impact on thermophilisation varied with community body size, thermal niche breadth, species richness and baseline temperature; these interactive effects were idiosyncratic in the direction and magnitude of their impacts on thermophilisation, both across realms and taxonomic groups. While our findings emphasise the challenges in predicting the consequences of temperature change across communities, conservation strategies should consider these variable responses when attempting to mitigate climate-induced biodiversity loss.
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Affiliation(s)
- Imran Khaliq
- Department of Aquatic Ecology, Eawag (Swiss Federal Institute of Aquatic Science and Technology) Überlandstrasse 133, 8600, Dübendorf, Switzerland.
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Flüelastrasse 11, 7260, Davos Dorf, Switzerland.
- Climate Change, Extremes and Natural Hazards in Alpine Regions Research Centre CERC, Flüelastrasse 11, 7260, Davos Dorf, Switzerland.
- Department of Zoology, Government (defunct) post-graduate college, Dera Ghazi Khan, 32200, Pakistan.
| | - Christian Rixen
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Flüelastrasse 11, 7260, Davos Dorf, Switzerland
- Climate Change, Extremes and Natural Hazards in Alpine Regions Research Centre CERC, Flüelastrasse 11, 7260, Davos Dorf, Switzerland
| | - Florian Zellweger
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - Catherine H Graham
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - Martin M Gossner
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- ETH Zurich, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, 8092, Zurich, Switzerland
| | - Ian R McFadden
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- ETH Zurich, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, 8092, Zurich, Switzerland
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1090 GE, Amsterdam, The Netherlands
- University of London, Queen Mary, London, UK
| | - Laura Antão
- Research Centre for Ecological Change, Organismal and Evolutionary Biology Research Programme, University of Helsinki, PO Box 65 (Viikinkaari 1), 00014, Helsinki, Finland
| | - Jakob Brodersen
- Department of Fish Ecology and Evolution, Eawag (Swiss Federal Institute of Aquatic Science and Technology), Seestrasse 79, 6047, Kastanienbaum, Switzerland
- Department of Environmental Sciences, Zoology, University of Basel, Vesalgasse 1, 4051, Basel, Switzerland
| | - Shyamolina Ghosh
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Flüelastrasse 11, 7260, Davos Dorf, Switzerland
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- Department of Fish Ecology and Evolution, Eawag (Swiss Federal Institute of Aquatic Science and Technology), Seestrasse 79, 6047, Kastanienbaum, Switzerland
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Francesco Pomati
- Department of Aquatic Ecology, Eawag (Swiss Federal Institute of Aquatic Science and Technology) Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Eawag (Swiss Federal Institute of Aquatic Science and Technology), Seestrasse 79, 6047, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012, Bern, Switzerland
| | - Tobias Roth
- Department of Environmental Sciences, Zoology, University of Basel, Vesalgasse 1, 4051, Basel, Switzerland
- Hintermann & Weber AG Austrasse 2a, 4153, Reinach, Switzerland
| | - Thomas Sattler
- Swiss Ornithological Institute, Seerose 1, 6204, Sempach, Switzerland
| | - Sarah R Supp
- Denison University, Data Analytics Program, Granville, OH, 43023, USA
| | - Maria Riaz
- Conservation Genetics Group, Senckenberg Research Institute and Natural History Museum Frankfurt, 63571, Gelnhausen, Germany
- Faculty of Biological Sciences, Institute for Ecology, Evolution and Diversity, Goethe University, Max-von-Laue-Straße 9, 60438, Frankfurt am Main, Germany
| | - Niklaus E Zimmermann
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- ETH Zurich, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, 8092, Zurich, Switzerland
| | - Blake Matthews
- Department of Fish Ecology and Evolution, Eawag (Swiss Federal Institute of Aquatic Science and Technology), Seestrasse 79, 6047, Kastanienbaum, Switzerland
| | - Anita Narwani
- Department of Aquatic Ecology, Eawag (Swiss Federal Institute of Aquatic Science and Technology) Überlandstrasse 133, 8600, Dübendorf, Switzerland.
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6
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Ngoepe N, Merz A, King L, Wienhues G, Kishe MA, Mwaiko S, Misra P, Grosjean M, Matthews B, Mustaphi CC, Heiri O, Cohen A, Tinner W, Muschick M, Seehausen O. Testing alternative hypotheses for the decline of cichlid fish in Lake Victoria using fish tooth time series from sediment cores. Biol Lett 2024; 20:20230604. [PMID: 38503343 PMCID: PMC10950456 DOI: 10.1098/rsbl.2023.0604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/20/2024] [Indexed: 03/21/2024] Open
Abstract
Lake Victoria is well known for its high diversity of endemic fish species and provides livelihoods for millions of people. The lake garnered widespread attention during the twentieth century as major environmental and ecological changes modified the fish community with the extinction of approximately 40% of endemic cichlid species by the 1980s. Suggested causal factors include anthropogenic eutrophication, fishing, and introduced non-native species but their relative importance remains unresolved, partly because monitoring data started in the 1970s when changes were already underway. Here, for the first time, we reconstruct two time series, covering the last approximately 200 years, of fish assemblage using fish teeth preserved in lake sediments. Two sediment cores from the Mwanza Gulf of Lake Victoria, were subsampled continuously at an intra-decadal resolution, and teeth were identified to major taxa: Cyprinoidea, Haplochromini, Mochokidae and Oreochromini. None of the fossils could be confidently assigned to non-native Nile perch. Our data show significant decreases in haplochromine and oreochromine cichlid fish abundances that began long before the arrival of Nile perch. Cyprinoids, on the other hand, have generally been increasing. Our study is the first to reconstruct a time series of any fish assemblage in Lake Victoria extending deeper back in time than the past 50 years, helping shed light on the processes underlying Lake Victoria's biodiversity loss.
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Affiliation(s)
- Nare Ngoepe
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Alenya Merz
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, Netherlands
| | - Leighton King
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Giulia Wienhues
- Institute of Geography and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, 3013 Bern, Switzerland
| | - Mary A. Kishe
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Salome Mwaiko
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Pavani Misra
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Martin Grosjean
- Institute of Geography and Oeschger Centre for Climate Change Research, University of Bern, Altenbergrain 21, 3013 Bern, Switzerland
| | - Blake Matthews
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Colin Courtney Mustaphi
- Geoecology, Department of Environmental Sciences, University of Basel, 4056 Basel, Switzerland
- Center for Water Infrastructure and Sustainable Energy (WISE) Futures, Nelson Mandela African Institution of Science and Technology, P.O. Box 9124, Arusha, Tanzania
| | - Oliver Heiri
- Geoecology, Department of Environmental Sciences, University of Basel, 4056 Basel, Switzerland
| | - Andrew Cohen
- Department of Geosciences, University of Arizona, Tucson, AZ, USA
| | - Willy Tinner
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013 Bern, Switzerland
| | - Moritz Muschick
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
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7
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Svensson O, Woodhouse K, Smith A, Seehausen O, Turner GF. Sympatry and parapatry among rocky reef cichlids of Lake Victoria explained by female mating preferences. J Evol Biol 2024; 37:51-61. [PMID: 38285657 DOI: 10.1093/jeb/voad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/15/2023] [Accepted: 11/06/2023] [Indexed: 01/31/2024]
Abstract
Work on the Lake Victoria cichlids Pundamilia nyererei (red dorsum males, deeper water), Pundamilia pundamilia (blue males, shallower water) and related species pairs has provided insights into processes of speciation. Here, we investigate the female mating behaviour of 5 Pundamilia species and 4 of their F1 hybrids through mate choice trials and paternity testing. Complete assortative mating was observed among all sympatric species. Parapatric species with similar depth habitat distributions interbred whereas other parapatric and allopatric species showed complete assortative mating. F1 hybrids mated exclusively with species accepted by females of the parental species. The existence of complete assortative mating among some currently allopatric species suggests that pre-existing mating barriers could be sufficient to explain current patterns of co-existence, although, of course, many other factors may be involved. Regardless of the mechanism, mating preferences may influence species distribution in potentially hybridizing taxa, such as in the adaptive radiation of cichlid fish. We suggest that this at least partly explains why some species fail to establish breeding populations in locations where they are occasionally recorded. Our results support the notion that the mating preferences of potentially cross-breeding species ought to be included in coexistence theory.
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Affiliation(s)
- Ola Svensson
- Department of Educational Work, University of Borås, Borås, Sweden
- The Linnaeus Centre for Marine Evolutionary Biology, University of Gothenburg, Gothenburg, Sweden
- Department of Biology, School of Natural Sciences, University of Hull, Hull, United Kingdom
| | - Katie Woodhouse
- Department of Biology, School of Natural Sciences, University of Hull, Hull, United Kingdom
| | - Alan Smith
- Department of Biology, School of Natural Sciences, University of Hull, Hull, United Kingdom
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - George F Turner
- School of Natural and Environmental Sciences, Bangor University, Bangor, United Kingdom
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8
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Ehrenfels B, Junker J, Namutebi D, Callbeck CM, Dinkel C, Kalangali A, Kimirei IA, Mbonde AS, Mosille JB, Sweke EA, Schubert CJ, Seehausen O, Wagner CE, Wehrli B. Isotopic signatures induced by upwelling reveal regional fish stocks in Lake Tanganyika. PLoS One 2023; 18:e0281828. [PMID: 37939036 PMCID: PMC10631627 DOI: 10.1371/journal.pone.0281828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 01/31/2023] [Indexed: 11/10/2023] Open
Abstract
Lake Tanganyika's pelagic fish sustain the second largest inland fishery in Africa and are under pressure from heavy fishing and global warming related increases in stratification. The strength of water column stratification varies regionally, with a more stratified north and an upwelling-driven, biologically more productive south. Only little is known about whether such regional hydrodynamic regimes induce ecological or genetic differences among populations of highly mobile, pelagic fish inhabiting these different areas. Here, we examine whether the regional contrasts leave distinct isotopic imprints in the pelagic fish of Lake Tanganyika, which may reveal differences in diet or lipid content. We conducted two lake-wide campaigns during different seasons and collected physical, nutrient, chlorophyll, phytoplankton and zooplankton data. Additionally, we analyzed the pelagic fish-the clupeids Stolothrissa tanganicae, Limnothrissa miodon and four Lates species-for their isotopic and elemental carbon (C) and nitrogen (N) compositions. The δ13C values were significantly higher in the productive south after the upwelling/mixing period across all trophic levels, implying that the fish have regional foraging grounds, and thus record these latitudinal isotope gradients. By combining our isotope data with previous genetic results showing little geographic structure, we demonstrate that the fish reside in a region for a season or longer. Between specimens from the north and south we found no strong evidence for varying trophic levels or lipid contents, based on their bulk δ15N and C:N ratios. We suggest that the development of regional trophic or physiological differences may be inhibited by the lake-wide gene flow on the long term. Overall, our findings show that the pelagic fish species, despite not showing evidence for genetic structure at the basin scale, form regional stocks at the seasonal timescales. This implies that sustainable management strategies may consider adopting regional fishing quotas.
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Affiliation(s)
- Benedikt Ehrenfels
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters – Research and Management, Kastanienbaum, Switzerland
- ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Zurich, Switzerland
| | - Julian Junker
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Fish Ecology and Evolution, Kastanienbaum, Switzerland
- Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Demmy Namutebi
- Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
- IHE Delft, Institute for Water Education, Delft, Netherlands
| | - Cameron M. Callbeck
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters – Research and Management, Kastanienbaum, Switzerland
| | - Christian Dinkel
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters – Research and Management, Kastanienbaum, Switzerland
| | | | - Ismael A. Kimirei
- TAFIRI, Tanzania Fisheries Research Institute, Kigoma, Tanzania
- TAFIRI, Tanzania Fisheries Research Institute, Dar es Salaam, Tanzania
| | | | | | - Emmanuel A. Sweke
- TAFIRI, Tanzania Fisheries Research Institute, Kigoma, Tanzania
- DSFA, Deep Sea Fishing Authority, Zanzibar, Tanzania
| | - Carsten J. Schubert
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters – Research and Management, Kastanienbaum, Switzerland
- ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Zurich, Switzerland
| | - Ole Seehausen
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Fish Ecology and Evolution, Kastanienbaum, Switzerland
- Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Catherine E. Wagner
- Department of Botany and Program in Ecology, University of Wyoming, Laramie, Wyoming, United States of America
| | - Bernhard Wehrli
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters – Research and Management, Kastanienbaum, Switzerland
- ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Zurich, Switzerland
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9
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Muschick M, Jemmi E, Lengacher N, Hänsch S, Wales N, Kishe MA, Mwaiko S, Dieleman J, Lever MA, Salzburger W, Verschuren D, Seehausen O. Ancient DNA is preserved in fish fossils from tropical lake sediments. Mol Ecol 2023; 32:5913-5931. [PMID: 37830773 DOI: 10.1111/mec.17159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/30/2023] [Accepted: 09/25/2023] [Indexed: 10/14/2023]
Abstract
Tropical freshwater lakes are well known for their high biodiversity, and particularly the East African Great Lakes are renowned for their adaptive radiation of cichlid fishes. While comparative phylogenetic analyses of extant species flocks have revealed patterns and processes of their diversification, little is known about evolutionary trajectories within lineages, the impacts of environmental drivers, or the scope and nature of now-extinct diversity. Time-structured palaeodata from geologically young fossil records, such as fossil counts and particularly ancient DNA (aDNA) data, would help fill this large knowledge gap. High ambient temperatures can be detrimental to the preservation of DNA, but refined methodology now allows data generation even from very poorly preserved samples. Here, we show for the first time that fish fossils from tropical lake sediments yield endogenous aDNA. Despite generally low endogenous content and high sample dropout, the application of high-throughput sequencing and, in some cases, sequence capture allowed taxonomic assignment and phylogenetic placement of 17% of analysed fish fossils to family or tribe level, including remains which are up to 2700 years old or weigh less than 1 mg. The relationship between aDNA degradation and the thermal age of samples is similar to that described for terrestrial samples from cold environments when adjusted for elevated temperature. Success rates and aDNA preservation differed between the investigated lakes Chala, Kivu and Victoria, possibly caused by differences in bottom water oxygenation. Our study demonstrates that the sediment records of tropical lakes can preserve genetic information on rapidly diversifying fish taxa over time scales of millennia.
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Affiliation(s)
- Moritz Muschick
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Eliane Jemmi
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Nicholas Lengacher
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Stephanie Hänsch
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Nathan Wales
- Department of Archaeology, University of York, York, UK
| | - Mary A Kishe
- Tanzania Fisheries Research Institute, Dar es Salaam, Tanzania
| | - Salome Mwaiko
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Jorunn Dieleman
- Limnology Unit, Department of Biology, Ghent University, Ghent, Belgium
| | - Mark Alexander Lever
- Institute of Biogeochemistry and Pollutant Dynamics, Swiss Federal Institute of Technology (ETH Zurich), Zurich, Switzerland
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas, USA
| | | | - Dirk Verschuren
- Limnology Unit, Department of Biology, Ghent University, Ghent, Belgium
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
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10
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Ngoepe N, Muschick M, Kishe MA, Mwaiko S, Temoltzin-Loranca Y, King L, Courtney Mustaphi C, Heiri O, Wienhues G, Vogel H, Cuenca-Cambronero M, Tinner W, Grosjean M, Matthews B, Seehausen O. A continuous fish fossil record reveals key insights into adaptive radiation. Nature 2023; 622:315-320. [PMID: 37794187 PMCID: PMC10567567 DOI: 10.1038/s41586-023-06603-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/01/2023] [Indexed: 10/06/2023]
Abstract
Adaptive radiations have been instrumental in generating a considerable amount of life's diversity. Ecological opportunity is thought to be a prerequisite for adaptive radiation1, but little is known about the relative importance of species' ecological versatility versus effects of arrival order in determining which lineage radiates2. Palaeontological records that could help answer this are scarce. In Lake Victoria, a large adaptive radiation of cichlid fishes evolved in an exceptionally short and recent time interval3. We present a rich continuous fossil record extracted from a series of long sediment cores along an onshore-offshore gradient. We reconstruct the temporal sequence of events in the assembly of the fish community from thousands of tooth fossils. We reveal arrival order, relative abundance and habitat occupation of all major fish lineages in the system. We show that all major taxa arrived simultaneously as soon as the modern lake began to form. There is no evidence of the radiating haplochromine cichlid lineage arriving before others, nor of their numerical dominance upon colonization; therefore, there is no support for ecological priority effects. However, although many taxa colonized the lake early and several became abundant, only cichlids persisted in the new deep and open-water habitats once these emerged. Because these habitat gradients are also known to have played a major role in speciation, our findings are consistent with the hypothesis that ecological versatility was key to adaptive radiation, not priority by arrival order nor initial numerical dominance.
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Affiliation(s)
- Nare Ngoepe
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland.
| | - Moritz Muschick
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Mary A Kishe
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Salome Mwaiko
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | | | - Leighton King
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Colin Courtney Mustaphi
- Geoecology, Department of Environmental Sciences, University of Basel, Basel, Switzerland
- Center for Water Infrastructure and Sustainable Energy (WISE) Futures, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
| | - Oliver Heiri
- Geoecology, Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Giulia Wienhues
- Institute of Geography & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Hendrik Vogel
- Institute of Geological Sciences & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Maria Cuenca-Cambronero
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
- Aquatic Ecology, University of Vic - Central University of Catalonia, Vic, Spain
| | - Willy Tinner
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - Martin Grosjean
- Institute of Geography & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Blake Matthews
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, EAWAG, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
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11
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Meier JI, McGee MD, Marques DA, Mwaiko S, Kishe M, Wandera S, Neumann D, Mrosso H, Chapman LJ, Chapman CA, Kaufman L, Taabu-Munyaho A, Wagner CE, Bruggmann R, Excoffier L, Seehausen O. Cycles of fusion and fission enabled rapid parallel adaptive radiations in African cichlids. Science 2023; 381:eade2833. [PMID: 37769075 DOI: 10.1126/science.ade2833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 08/21/2023] [Indexed: 09/30/2023]
Abstract
Although some lineages of animals and plants have made impressive adaptive radiations when provided with ecological opportunity, the propensities to radiate vary profoundly among lineages for unknown reasons. In Africa's Lake Victoria region, one cichlid lineage radiated in every lake, with the largest radiation taking place in a lake less than 16,000 years old. We show that all of its ecological guilds evolved in situ. Cycles of lineage fusion through admixture and lineage fission through speciation characterize the history of the radiation. It was jump-started when several swamp-dwelling refugial populations, each of which were of older hybrid descent, met in the newly forming lake, where they fused into a single population, resuspending old admixture variation. Each population contributed a different set of ancient alleles from which a new adaptive radiation assembled in record time, involving additional fusion-fission cycles. We argue that repeated fusion-fission cycles in the history of a lineage make adaptive radiation fast and predictable.
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Affiliation(s)
- Joana I Meier
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
- Department of Zoology, University of Cambridge, Cambridge, UK
- Tree of Life Programme, Wellcome Sanger Institute, Hinxton, UK
| | - Matthew D McGee
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - David A Marques
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
- Natural History Museum Basel, Basel, Switzerland
| | - Salome Mwaiko
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
| | - Mary Kishe
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Sylvester Wandera
- National Fisheries Resources Research Institute (NAFIRRI), Jinja, Uganda
| | - Dirk Neumann
- Leipniz Institute for Biodiversity Change, Hamburg, Germany
| | - Hilary Mrosso
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Lauren J Chapman
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Colin A Chapman
- Wilson Center, Washington, DC, USA
- Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada
- School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China
- Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada
| | - Les Kaufman
- Boston University Marine Program, Department of Biology, Boston University, Boston, MA, USA
| | | | | | - Rémy Bruggmann
- Interfaculty Bioinformatics Unit and Institute of Bioinformatics, University of Bern, Bern, Switzerland
| | - Laurent Excoffier
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Ole Seehausen
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
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12
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Haberthür D, Law M, Ford K, Häsler M, Seehausen O, Hlushchuk R. Microtomographic investigation of a large corpus of cichlids. PLoS One 2023; 18:e0291003. [PMID: 37756267 PMCID: PMC10529598 DOI: 10.1371/journal.pone.0291003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
A large collection of cichlids (N = 133) from Lake Victoria in Africa, with total lengths ranging from 6 to 18 cm was nondestructively imaged using micro-computed tomography. We present a method to efficiently obtain three-dimensional tomographic datasets of the oral and pharyngeal jaws and the whole skull of these fishes to accurately describe their morphology. The tomographic data we acquired (9.8 TB of projection images) yielded 1.5 TB of three-dimensional image stacks used for extracting the relevant features of interest. Herein we present our method and outlooks on analyzing the acquired data; a morphological description of the oral and pharyngeal jaws, a three-dimensional geometric morphometrics analysis of landmarked skull features, and a robust method to automatically extract otoliths from the tomographic data.
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Affiliation(s)
| | - Mikki Law
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Kassandra Ford
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
- Department of Biological Sciences, George Washington University, Washington, DC, United States of America
| | - Marcel Häsler
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute for Aquatic Science and Technology, Kastanienbaum, Switzerland
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13
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Rüber L, Gandolfi A, Foresti D, Paltrinieri L, Splendiani A, Seehausen O. Phylogenetic and biogeographic history of brook lampreys ( Lampetra: Petromyzontidae) in the river basins of the Adriatic Sea based on DNA barcode data. Ecol Evol 2023; 13:e10496. [PMID: 37674653 PMCID: PMC10477476 DOI: 10.1002/ece3.10496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/08/2023] Open
Abstract
The Adriatic brook lamprey, Lampetra zanandreai Vladykov 1955, was described from northeastern Italy. Its distribution is thought to include left tributaries of the River Po and the river basins of the Adriatic Sea from the River Po to the River Isonzo/Soča in Italy, Switzerland and Slovenia. It also shows a geographically isolated distribution in the Potenza River on the Adriatic slope in Central Italy. Lampetra from the Neretva River system in Croatia and Bosnia and Herzegovina and the Morača River system in Montenegro that were previously identified as L. zanandreai were recently described as a new species Lampetra soljani Tutman, Freyhof, Dulčić, Glamuzina & Geiger 2017 based on morphological data and a genetic distance between the two species of roughly 2.5% in the DNA barcoding gene cytochrome oxidase I (COI). Since DNA barcodes for L. zanandreai are only available for one population from the upper Po River in northwestern Italy, we generated additional COI nucleotide sequence data of this species from Switzerland, northeastern and central Italy comprising near topotypic material and obtained GenBank sequences of the species from Slovenia to better assess the evolutionary history of the two brook lamprey species in the river basins of the Adriatic Sea. Our data show a low sequence divergence of <1% between L. zanandreai from Switzerland, northeastern and central Italy and Slovenia and the Balkan species L. soljani. However, members of the population previously identified as 'L. zanandreai' from northwest Italy are genetically highly divergent from those of L. zanandreai and likely belong to an undescribed species, L. sp. 'upper Po'. The presence of a unique and highly divergent brook lamprey lineage in the upper Po River suggests that L. zanandreai and Lampetra sp. 'upper Po' may have evolved in separate paleo drainages during the formation of the modern Po Valley subsequent to marine inundations in the Pliocene.
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Affiliation(s)
- Lukas Rüber
- Naturhistorisches Museum BernBernSwitzerland
- Aquatic Ecology & EvolutionInstitute of Ecology and Evolution, University of BernBernSwitzerland
| | - Andrea Gandolfi
- Conservation Genomics Research UnitResearch and Innovation Centre ‐ Fondazione Edmund MachSan Michele all'Adige (TN)Italy
| | | | | | - Andrea Splendiani
- Dipartimento di Scienze della Vita e dell'AmbienteUniversità Politecnica delle MarcheAnconaItaly
| | - Ole Seehausen
- Aquatic Ecology & EvolutionInstitute of Ecology and Evolution, University of BernBernSwitzerland
- Department of Fish Ecology and EvolutionEawag ‐ Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
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14
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Hudson CM, Cuenca Cambronero M, Moosmann M, Narwani A, Spaak P, Seehausen O, Matthews B. Environmentally independent selection for hybrids between divergent freshwater stickleback lineages in semi-natural ponds. J Evol Biol 2023; 36:1166-1184. [PMID: 37394735 DOI: 10.1111/jeb.14194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 05/03/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023]
Abstract
Hybridization following secondary contact of genetically divergent populations can influence the range expansion of invasive species, though specific outcomes depend on the environmental dependence of hybrid fitness. Here, using two genetically and ecologically divergent threespine stickleback lineages that differ in their history of freshwater colonization, we estimate fitness variation of parental lineages and hybrids in semi-natural freshwater ponds with contrasting histories of nutrient loading. In our experiment, we found that fish from the older freshwater lineage (Lake Geneva) and hybrids outperformed fish from the younger freshwater lineage (Lake Constance) in terms of both growth and survival, regardless of the environmental context of our ponds. Across all ponds, hybrids exhibited the highest survival. Although wild-caught adult populations differed in their functional and defence morphology, it is unclear which of these traits underlie the fitness differences observed among juveniles in our experiment. Overall, our work suggests that when hybrid fitness is insensitive to environmental conditions, as observed here, introgression may promote population expansion into unoccupied habitats and accelerate invasion success.
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Affiliation(s)
- Cameron Marshall Hudson
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry, Lucerne, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Zürich, Switzerland
| | - Maria Cuenca Cambronero
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry, Lucerne, Switzerland
- Aquatic Ecology Group, University of Vic, Central University of Catalonia, Vic, Spain
| | - Marvin Moosmann
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry, Lucerne, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Anita Narwani
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Zürich, Switzerland
| | - Piet Spaak
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Zürich, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry, Lucerne, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Blake Matthews
- Department of Fish Ecology and Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry, Lucerne, Switzerland
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15
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Gobbin TP, Vanhove MPM, Veenstra R, Maan ME, Seehausen O. Variation in parasite infection between replicates of speciation in Lake Victoria cichlid fish. Evolution 2023:7170727. [PMID: 37201541 DOI: 10.1093/evolut/qpad080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 05/20/2023]
Abstract
Because of potentially strong eco-evolutionary interactions with their hosts, parasites may initiate or enhance host diversification. The adaptive radiation of cichlid fish in Lake Victoria provides a good system to study the role of parasites at different stages of host speciation. We analysed the macroparasite infection of four replicates of sympatric blue and red Pundamilia species pairs that vary in their age and extent of differentiation. Sympatric host species differed in parasite community composition and in the infection levels of some of these parasite taxa. Most infection differences were consistent between sampling years, indicating temporal consistency in parasite-mediated divergent selection between species. Infection differentiation increased linearly with genetic differentiation. However, significant infection differences between sympatric species were only found in the oldest, most strongly differentiated Pundamilia species pair. This is inconsistent with parasite-driven speciation. Next, we identified five distinct species of Cichlidogyrus, a genus of highly specific gill parasites that has radiated elsewhere in Africa. Infection profiles of species of Cichlidogyrus differed between sympatric cichlid species only in the oldest and most differentiated pair, again inconsistent with parasite-mediated speciation. To conclude, parasites may contribute to host differentiation after speciation, but do not initiate host speciation.
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Affiliation(s)
- Tiziana P Gobbin
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Maarten P M Vanhove
- Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Renée Veenstra
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Martine E Maan
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Ole Seehausen
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
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16
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Kagawa K, Takimoto G, Seehausen O. Transgressive segregation in mating traits drives hybrid speciation. Evolution 2023:7140361. [PMID: 37094817 DOI: 10.1093/evolut/qpad072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Indexed: 04/26/2023]
Abstract
Hybridization can rapidly generate novel genetic variation, which can promote ecological speciation by creating novel adaptive phenotypes. However, it remains unclear how hybridization, creating novel mating phenotypes (e.g., mating season, genitalia shapes, sexual displays, mate preferences), affects speciation especially when the phenotypes do not confer adaptive advantages. Here, based on individual-based evolutionary simulations, we propose that transgressive segregation of mating traits can drive incipient hybrid speciation. Simulations demonstrated that incipient hybrid speciation occurred most frequently when the hybrid population received moderate continued immigration from parental lineages causing recurrent episodes of hybridization. Recurrent hybridization constantly generated genetic variation, which promoted the rapid stochastic evolution of mating phenotypes in a hybrid population. The stochastic evolution continued until a novel mating phenotype came to dominate the hybrid population, which reproductively isolates the hybrid population from parental lineages. However, too frequent hybridization rather hindered the evolution of reproductive isolation by inflating the variation of mating phenotypes to produce phenotypes allowing mating with parental lineages. Simulations also revealed conditions for long-term persistence of hybrid species after their incipient emergence. Our results suggest that recurrent transgressive segregation of mating phenotypes can offer a plausible explanation for hybrid speciation and radiations that involved little adaptive ecological divergence.
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Affiliation(s)
- Kotaro Kagawa
- Graduate School of Life Sciences, Tohoku University, 6‑3, Aramaki Aza Aoba, Aoba ku, Sendai 980 8578, Japan
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Hochschulstrasse 6, 3012 Bern, Switzerland
| | - Gaku Takimoto
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Hochschulstrasse 6, 3012 Bern, Switzerland
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17
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Stieb SM, Cortesi F, de Queiroz LJ, Carleton KL, Seehausen O, Marshall NJ. Long-wavelength-sensitive (lws) opsin gene expression, foraging and visual communication in coral reef fishes. Mol Ecol 2023; 32:1656-1672. [PMID: 36560895 PMCID: PMC10065935 DOI: 10.1111/mec.16831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 11/25/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Coral reef fishes are diverse in ecology and behaviour and show remarkable colour variability. Investigating the visual pigment gene (opsin) expression in these fishes makes it possible to associate their visual genotype and phenotype (spectral sensitivities) to visual tasks, such as feeding strategy or conspecific detection. By studying all major damselfish clades (Pomacentridae) and representatives from five other coral reef fish families, we show that the long-wavelength-sensitive (lws) opsin is highly expressed in algivorous and less or not expressed in zooplanktivorous species. Lws is also upregulated in species with orange/red colours (reflectance >520 nm) and expression is highest in orange/red-coloured algivores. Visual models from the perspective of a typical damselfish indicate that sensitivity to longer wavelengths does enhance the ability to detect the red to far-red component of algae and orange/red-coloured conspecifics, possibly enabling social signalling. Character state reconstructions indicate that in the early evolutionary history of damselfishes, there was no lws expression and no orange/red coloration. Omnivory was most often the dominant state. Although herbivory was sometimes dominant, zooplanktivory was never dominant. Sensitivity to long wavelength (increased lws expression) only emerged in association with algivory but never with zooplanktivory. Higher lws expression is also exploited by social signalling in orange/red, which emerged after the transition to algivory. Although the relative timing of traits may deviate by different reconstructions and alternative explanations are possible, our results are consistent with sensory bias whereby social signals evolve as a correlated response to natural selection on sensory system properties in other contexts.
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Affiliation(s)
- Sara M. Stieb
- Centre for Ecology, Evolution and Biogeochemistry (CEEB), EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Institute of Ecology and Evolution, University of Bern, Switzerland
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Fabio Cortesi
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Luiz Jardim de Queiroz
- Centre for Ecology, Evolution and Biogeochemistry (CEEB), EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Institute of Ecology and Evolution, University of Bern, Switzerland
| | - Karen L. Carleton
- Department of Biology, University of Maryland, College Park, MD 20742, USA
| | - Ole Seehausen
- Centre for Ecology, Evolution and Biogeochemistry (CEEB), EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
- Institute of Ecology and Evolution, University of Bern, Switzerland
| | - N. Justin Marshall
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
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18
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Müller C, Moser FN, Frei D, Seehausen O. Constraints to speciation despite divergence in an old haplochromine cichlid lineage. Evolution 2023; 77:823-835. [PMID: 36617260 DOI: 10.1093/evolut/qpad001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/19/2022] [Accepted: 01/06/2023] [Indexed: 01/09/2023]
Abstract
Most of the 500+ cichlid species of Lake Victoria evolved very rapidly in the wake of an adaptive radiation within the last 15,000 years. All 500 species have evolved from just one out of five old cichlid lineages that colonized the lake. Endemic to the Lake Victoria region, Astatoreochromis alluaudi is a member of an old haplochromine lineage that never speciated in the region. Even though the species occurs in a wide range of habitats, there were no indications of evolutionary diversification. Here, we tested predictions of several hypothetical mechanisms that might constrain speciation, including high dispersal rates, a generalist life style and the lack of behavioral assortative mating. Genomic analyses of individuals from 13 populations revealed several genomically distinct groups, associated with major habitat classes, indicating the existence of two distinct ecotypes. We found significant phenotypic differences between these ecotypes in the wild, which were retained under common-garden conditions, potentially indicating heritable phenotypic adaptations. Female mate choice experiments revealed the absence of behavioral assortative mating despite genetic and phenotypic differentiation between ecotypes. We suggest that the lack of coupling between behavioral mating preferences and phenotypic and genetic divergence constrains speciation in this cichlid.
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Affiliation(s)
- Claudio Müller
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology & Evolution, EAWAG, Centre for Ecology, Evolution and Biogeochemistry, 6047 Kastanienbaum, Switzerland
| | - Florian N Moser
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology & Evolution, EAWAG, Centre for Ecology, Evolution and Biogeochemistry, 6047 Kastanienbaum, Switzerland
| | - David Frei
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology & Evolution, EAWAG, Centre for Ecology, Evolution and Biogeochemistry, 6047 Kastanienbaum, Switzerland
| | - Ole Seehausen
- Department of Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology & Evolution, EAWAG, Centre for Ecology, Evolution and Biogeochemistry, 6047 Kastanienbaum, Switzerland
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19
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Selz OM, Seehausen O. A taxonomic revision of ten whitefish species from the lakes Lucerne, Sarnen, Sempach and Zug, Switzerland, with descriptions of seven new species (Teleostei, Coregonidae). Zookeys 2023; 1144:95-169. [DOI: 10.3897/zookeys.1144.67747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/22/2022] [Indexed: 02/04/2023] Open
Abstract
The taxonomy of the endemic whitefish of the lakes of the Reuss River system (Lucerne, Sarnen, Zug) and Lake Sempach, Switzerland, is reviewed and revised. Lake Lucerne harbours five species. Coregonus intermundiasp. nov. and C. suspensussp. nov., are described. Coregonus nobilis Haack, 1882, C. suidteri Fatio, 1885, and C. zugensis Nüsslin, 1882, are redescribed. Genetic studies have shown that C. suidteri and C. zugensis are composed of several distinct species endemic to different lakes. The names C. suidteri and C. zugensis are restricted to the species of lakes Sempach and Zug, respectively. The whitefish populations previously referred to as C. suidteri and C. zugensis from Lake Lucerne are described as C. litoralissp. nov. and C. muellerisp. nov., respectively. Furthermore, the whitefish from Lake Zug that were previously referred to as C. suidteri are described as C. supersumsp. nov. A holotype is designated for C. supersum that was previously one of two syntypes of C. zugensis. The other syntype is retained for C. zugensis. Coregonus obliterussp. nov. is described from Lake Zug, and C. obliterus and C. zugensis from Lake Zug are extinct. Finally, we describe C. sarnensissp. nov. from lakes Sarnen and Alpnach. Coregonus suidteri from Lake Sempach shows strong signals of introgression from deliberately translocated non-native whitefish species, which questions if the extant population still carries a genetic legacy from the original species and thus may need to be considered extinct. Coregonus suspensus is genetically partially of allochthonous origin, closely related to the radiation of Lake Constance. It is therefore compared to all known and described species of Lake Constance: C. wartmanni Bloch, 1784, C. macrophthalmus Nüsslin, 1882, C. arenicolus Kottelat,1997, and C. gutturosus Gmelin, 1818.
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20
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McFadden IR, Sendek A, Brosse M, Bach PM, Baity-Jesi M, Bolliger J, Bollmann K, Brockerhoff EG, Donati G, Gebert F, Ghosh S, Ho HC, Khaliq I, Lever JJ, Logar I, Moor H, Odermatt D, Pellissier L, de Queiroz LJ, Rixen C, Schuwirth N, Shipley JR, Twining CW, Vitasse Y, Vorburger C, Wong MKL, Zimmermann NE, Seehausen O, Gossner MM, Matthews B, Graham CH, Altermatt F, Narwani A. Linking human impacts to community processes in terrestrial and freshwater ecosystems. Ecol Lett 2023; 26:203-218. [PMID: 36560926 PMCID: PMC10107666 DOI: 10.1111/ele.14153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022]
Abstract
Human impacts such as habitat loss, climate change and biological invasions are radically altering biodiversity, with greater effects projected into the future. Evidence suggests human impacts may differ substantially between terrestrial and freshwater ecosystems, but the reasons for these differences are poorly understood. We propose an integrative approach to explain these differences by linking impacts to four fundamental processes that structure communities: dispersal, speciation, species-level selection and ecological drift. Our goal is to provide process-based insights into why human impacts, and responses to impacts, may differ across ecosystem types using a mechanistic, eco-evolutionary comparative framework. To enable these insights, we review and synthesise (i) how the four processes influence diversity and dynamics in terrestrial versus freshwater communities, specifically whether the relative importance of each process differs among ecosystems, and (ii) the pathways by which human impacts can produce divergent responses across ecosystems, due to differences in the strength of processes among ecosystems we identify. Finally, we highlight research gaps and next steps, and discuss how this approach can provide new insights for conservation. By focusing on the processes that shape diversity in communities, we aim to mechanistically link human impacts to ongoing and future changes in ecosystems.
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Affiliation(s)
- Ian R McFadden
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Institute of Terrestrial Ecosystems, ETH Zürich, Zurich, Switzerland
| | - Agnieszka Sendek
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Morgane Brosse
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Peter M Bach
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Marco Baity-Jesi
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Janine Bolliger
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Kurt Bollmann
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Eckehard G Brockerhoff
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Giulia Donati
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Friederike Gebert
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Shyamolina Ghosh
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Hsi-Cheng Ho
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Imran Khaliq
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - J Jelle Lever
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Ivana Logar
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Helen Moor
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Daniel Odermatt
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - Loïc Pellissier
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Institute of Terrestrial Ecosystems, ETH Zürich, Zurich, Switzerland
| | - Luiz Jardim de Queiroz
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland.,Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Christian Rixen
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Davos, Switzerland
| | - Nele Schuwirth
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
| | - J Ryan Shipley
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland
| | - Cornelia W Twining
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland
| | - Yann Vitasse
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Christoph Vorburger
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland.,Institute of Integrative Biology, Department of Environmental Systems Science, ETH Zürich, Zurich, Switzerland
| | - Mark K L Wong
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,School of Biological Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Niklaus E Zimmermann
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Ole Seehausen
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland.,Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Martin M Gossner
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland.,Institute of Terrestrial Ecosystems, ETH Zürich, Zurich, Switzerland
| | - Blake Matthews
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland
| | - Catherine H Graham
- Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland
| | - Florian Altermatt
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
| | - Anita Narwani
- Swiss Federal Institute of Aquatic Science and Technology (Eawag), Dübendorf, Switzerland
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21
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Frei D, Reichlin P, Seehausen O, Feulner PGD. Introgression from extinct species facilitates adaptation to its vacated niche. Mol Ecol 2023; 32:841-853. [PMID: 36458574 DOI: 10.1111/mec.16791] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/28/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
Anthropogenic disturbances of ecosystems are causing a loss of biodiversity at an unprecedented rate. Species extinctions often leave ecological niches underutilized, and their colonization by other species may require new adaptation. In Lake Constance, on the borders of Germany, Austria and Switzerland, an endemic profundal whitefish species went extinct during a period of anthropogenic eutrophication. In the process of extinction, the deep-water species hybridized with three surviving whitefish species of Lake Constance, resulting in introgression of genetic variation that is potentially adaptive in deep-water habitats. Here, we sampled a water depth gradient across a known spawning ground of one of these surviving species, Coregonus macrophthalmus, and caught spawning individuals at greater depths (down to 90 m) than historically recorded. We sequenced a total of 96 whole genomes, 11-17 for each of six different spawning depth populations (4, 12, 20, 40, 60 and 90 m), to document genomic intraspecific differentiation along a water depth gradient. We identified 52 genomic regions that are potentially under divergent selection between the deepest (90 m) and all shallower (4-60 m) spawning habitats. At 12 (23.1%) of these 52 loci, the allele frequency pattern across historical and contemporary populations suggests that introgression from the extinct species potentially facilitates ongoing adaptation to deep water. Our results are consistent with the syngameon hypothesis, proposing that hybridization between members of an adaptive radiation can promote further niche expansion and diversification. Furthermore, our findings demonstrate that introgression from extinct into extant species can be a source of evolvability, enabling rapid adaptation to environmental change, and may contribute to the ecological recovery of ecosystem functions after extinctions.
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Affiliation(s)
- David Frei
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Pascal Reichlin
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Philine G D Feulner
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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22
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Moosmann M, Hudson CM, Seehausen O, Matthews B. The phenotypic determinants of diet variation between divergent lineages of threespine stickleback. Evolution 2023; 77:13-25. [PMID: 36622211 DOI: 10.1093/evolut/qpac021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 10/18/2022] [Accepted: 11/11/2022] [Indexed: 01/10/2023]
Abstract
Lineages with independent evolutionary histories often differ in both their morphology and diet. Experimental work has improved our understanding of the links between the biomechanics of morphological traits and foraging performance (trait utility). However, because the expression of foraging-relevant traits and their utility can be highly context-specific, it is often unclear how dietary divergence arises from evolved phenotypic differences. Here, we explore the phenotypic causes of dietary divergence between two genetically and phenotypically divergent lineages of threespine stickleback (Gasterosteus aculeatus) with independent evolutionary histories of freshwater colonization and adaptation. First, using individuals from a line-cross breeding design, we conducted 150 common-garden foraging trials with a community of multiple prey species and performed morphological and behavioral analyses to test for prey-specific trait utility. Second, we tested if the traits that explain variation in foraging performance among all individuals could also explain the dietary divergence between the lineages. Overall, we found evidence for the utility of several foraging traits, but these traits did not explain the observed dietary divergence between the lineages in a common garden. This work suggests that evolved dietary divergence results not only from differences in morphology but also from divergence in behaviors that underlie prey capture success in species-rich prey communities.
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Affiliation(s)
- Marvin Moosmann
- Department of Fish Ecology and Evolution, EAWAG, Kastanienbaum, Switzerland.,Department of Aquatic Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Cameron M Hudson
- Department of Fish Ecology and Evolution, EAWAG, Kastanienbaum, Switzerland.,Department of Aquatic Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, EAWAG, Kastanienbaum, Switzerland.,Department of Aquatic Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Blake Matthews
- Department of Fish Ecology and Evolution, EAWAG, Kastanienbaum, Switzerland
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23
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van Rijssel JC, Moser FN, Mwaiko S, Seehausen O. Strong species structure but weak geographical structure in demersal Lake Victoria cichlids. Ecol Evol 2022; 12:e9669. [PMID: 36582774 PMCID: PMC9790821 DOI: 10.1002/ece3.9669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/27/2022] Open
Abstract
Studying phenotypic and genetic differentiation between very young species can be very informative with regard to learning about processes of speciation. Identifying and characterizing genetic species structure and distinguishing it from spatial genetic structure within a species is a prerequisite for this and is often not given sufficient attention. Young radiations of cichlid fish are classical speciation study systems. However, it is only during the past decade that population genomics based on next-generation sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations. The Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish radiation, probably <20,000 years old. Earlier work showed that communities of rocky reef cichlids are composed of many reciprocally monophyletic species despite their very recent origins. Here, we build on this work by studying assemblages of offshore demersal cichlids, adding analyses of within-species spatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long transect from one side of the Mwanza Gulf to the other side. We investigated whether phenotypically diagnosed putative species are reciprocally monophyletic and whether such monophyly is stable across species geographic ranges. We show that all species are genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant differentiation between geographically distinct populations in two species, but no or weak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate after speciation has already affected genome-wide restrictions of gene flow.
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Affiliation(s)
- Jacco C. van Rijssel
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland,Wageningen Marine ResearchWageningen UniversityIJmuidenThe Netherlands
| | - Florian N. Moser
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
| | - Salome Mwaiko
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
| | - Ole Seehausen
- Department of Fish Ecology & EvolutionEAWAG Centre for Ecology, Evolution and BiogeochemistryKastanienbaumSwitzerland,Institute of Ecology and Evolution, Aquatic EcologyUniversity of BernBernSwitzerland
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24
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Ho HC, Brodersen J, Gossner MM, Graham CH, Kaeser S, Reji Chacko M, Seehausen O, Zimmermann NE, Pellissier L, Altermatt F. Blue and green food webs respond differently to elevation and land use. Nat Commun 2022; 13:6415. [PMID: 36302854 PMCID: PMC9613893 DOI: 10.1038/s41467-022-34132-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 10/14/2022] [Indexed: 12/25/2022] Open
Abstract
While aquatic (blue) and terrestrial (green) food webs are parts of the same landscape, it remains unclear whether they respond similarly to shared environmental gradients. We use empirical community data from hundreds of sites across Switzerland and a synthesis of interaction information in the form of a metaweb to show that inferred blue and green food webs have different structural and ecological properties along elevation and among various land-use types. Specifically, in green food webs, their modular structure increases with elevation and the overlap of consumers' diet niche decreases, while the opposite pattern is observed in blue food webs. Such differences between blue and green food webs are particularly pronounced in farmland-dominated habitats, indicating that anthropogenic habitat modification modulates the climatic effects on food webs but differently in blue versus green systems. These findings indicate general structural differences between blue and green food webs and suggest their potential divergent future alterations through land-use or climatic changes.
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Affiliation(s)
- Hsi-Cheng Ho
- grid.418656.80000 0001 1551 0562Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600 Dübendorf, Switzerland
| | - Jakob Brodersen
- grid.418656.80000 0001 1551 0562Department Fish Ecology and Evolution, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047 Kastanienbaum, Switzerland
| | - Martin M. Gossner
- grid.419754.a0000 0001 2259 5533WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, Universitätstrasse 16, CH-8092 Zürich, Switzerland
| | - Catherine H. Graham
- grid.419754.a0000 0001 2259 5533WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland
| | - Silvana Kaeser
- grid.418656.80000 0001 1551 0562Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600 Dübendorf, Switzerland
| | - Merin Reji Chacko
- grid.419754.a0000 0001 2259 5533WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, Universitätstrasse 16, CH-8092 Zürich, Switzerland
| | - Ole Seehausen
- grid.418656.80000 0001 1551 0562Department Fish Ecology and Evolution, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, CH-6047 Kastanienbaum, Switzerland ,grid.5734.50000 0001 0726 5157Division Aquatic Ecology, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland
| | - Niklaus E. Zimmermann
- grid.419754.a0000 0001 2259 5533WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, Universitätstrasse 16, CH-8092 Zürich, Switzerland
| | - Loïc Pellissier
- grid.419754.a0000 0001 2259 5533WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland ,grid.5801.c0000 0001 2156 2780Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, Universitätstrasse 16, CH-8092 Zürich, Switzerland
| | - Florian Altermatt
- grid.418656.80000 0001 1551 0562Department of Aquatic Ecology, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600 Dübendorf, Switzerland ,grid.7400.30000 0004 1937 0650Department of Evolutionary Biology and Environmental Studies, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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25
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Jardim de Queiroz L, Doenz CJ, Altermatt F, Alther R, Borko Š, Brodersen J, Gossner MM, Graham C, Matthews B, McFadden IR, Pellissier L, Schmitt T, Selz OM, Villalba S, Rüber L, Zimmermann NE, Seehausen O. Climate, immigration and speciation shape terrestrial and aquatic biodiversity in the European Alps. Proc Biol Sci 2022; 289:20221020. [PMID: 35946161 PMCID: PMC9363983 DOI: 10.1098/rspb.2022.1020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Quaternary climate fluctuations can affect speciation in regional biodiversity assembly in two non-mutually exclusive ways: a glacial species pump, where isolation in glacial refugia accelerates allopatric speciation, and adaptive radiation in underused adaptive zones during ice-free periods. We detected biogeographic and genetic signatures associated with both mechanisms in the assembly of the biota of the European Alps. Age distributions of endemic and widespread species within aquatic and terrestrial taxa (amphipods, fishes, amphibians, butterflies and flowering plants) revealed that endemic fish evolved only in lakes, are highly sympatric, and mainly of Holocene age, consistent with adaptive radiation. Endemic amphipods are ancient, suggesting preglacial radiation with limited range expansion and local Pleistocene survival, perhaps facilitated by a groundwater-dwelling lifestyle. Terrestrial endemics are mostly of Pleistocene age and are thus more consistent with the glacial species pump. The lack of evidence for Holocene adaptive radiation in the terrestrial biome is consistent with faster recolonization through range expansion of these taxa after glacial retreats. More stable and less seasonal ecological conditions in lakes during the Holocene may also have contributed to Holocene speciation in lakes. The high proportion of young, endemic species makes the Alpine biota vulnerable to climate change, but the mechanisms and consequences of species loss will likely differ between biomes because of their distinct evolutionary histories.
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Affiliation(s)
- Luiz Jardim de Queiroz
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Carmela J Doenz
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Florian Altermatt
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8006 Zürich, Switzerland
| | - Roman Alther
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8006 Zürich, Switzerland
| | - Špela Borko
- SubBio Lab, Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Jakob Brodersen
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Martin M Gossner
- Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland.,Department of Environmental Systems Science, Swiss Federal Institute of Technology in Zürich, 8092 Zürich, Switzerland
| | - Catherine Graham
- Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland
| | - Blake Matthews
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Ian R McFadden
- Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland.,Department of Environmental Systems Science, Swiss Federal Institute of Technology in Zürich, 8092 Zürich, Switzerland
| | - Loïc Pellissier
- Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland.,Department of Environmental Systems Science, Swiss Federal Institute of Technology in Zürich, 8092 Zürich, Switzerland
| | - Thomas Schmitt
- Senckenberg German Entomological Institute, 15374 Müncheberg, Germany.,Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
| | - Oliver M Selz
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland
| | - Soraya Villalba
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland
| | - Lukas Rüber
- Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Naturhistorisches Museum Bern, 3005 Bern, Switzerland
| | - Niklaus E Zimmermann
- Swiss Federal Institute for Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland.,Department of Environmental Systems Science, Swiss Federal Institute of Technology in Zürich, 8092 Zürich, Switzerland
| | - Ole Seehausen
- Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum/8600 Dübendorf, Switzerland.,Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
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26
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Rick JA, Junker J, Kimirei IA, Sweke EA, Mosille JB, Dinkel C, Mwaiko S, Seehausen O, Wagner CE. The Genetic Population Structure of Lake Tanganyika's Lates Species Flock, an Endemic Radiation of Pelagic Top Predators. J Hered 2022; 113:145-159. [PMID: 35575081 PMCID: PMC9113442 DOI: 10.1093/jhered/esab072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/12/2021] [Indexed: 11/13/2022] Open
Abstract
Understanding genetic connectivity plays a crucial role in species conservation decisions, and genetic connectivity is an important component of modern fisheries management. In this study, we investigated the population genetics of four endemic Lates species of Lake Tanganyika (Lates stappersii, L. microlepis, L. mariae, and L. angustifrons) using reduced-representation genomic sequencing methods. We find the four species to be strongly differentiated from one another (mean interspecific FST = 0.665), with no evidence for contemporary admixture. We also find evidence for strong genetic structure within L. mariae, with the majority of individuals from the most southern sampling site forming a genetic group that is distinct from the individuals at other sampling sites. We find evidence for much weaker structure within the other three species (L. stappersii, L. microlepis, and L. angustifrons). Our ability to detect this weak structure despite small and unbalanced sample sizes and imprecise geographic sampling locations suggests the possibility for further structure undetected in our study. We call for further research into the origins of the genetic differentiation in these four species-particularly that of L. mariae-which may be important for conservation and management of this culturally and economically important clade of fishes.
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Affiliation(s)
- Jessica A Rick
- Department of Botany and Program in Ecology, University of Wyoming, 1000 E University Dr., Laramie, WY 82072, USA
| | - Julian Junker
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, CH-6047 Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
| | - Ismael A Kimirei
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Emmanuel A Sweke
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
- Deep Sea Fishing Authority (DSFA), Zanzibar, Tanzania
| | - Julieth B Mosille
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Christian Dinkel
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, CH-6047 Kastanienbaum, Switzerland
| | - Salome Mwaiko
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, CH-6047 Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
| | - Ole Seehausen
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, CH-6047 Kastanienbaum, Switzerland
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
| | - Catherine E Wagner
- Department of Botany and Program in Ecology, University of Wyoming, 1000 E University Dr., Laramie, WY 82072, USA
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27
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Feller AF, Seehausen O. Genetic architecture of adaptive radiation across two trophic levels. Proc Biol Sci 2022; 289:20220377. [PMID: 35506225 PMCID: PMC9065965 DOI: 10.1098/rspb.2022.0377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Evolution of trophic diversity is a hallmark of adaptive radiation. Yet, transitions between carnivory and herbivory are rare in young adaptive radiations. Haplochromine cichlid fish of the African Great Lakes are exceptional in this regard. Lake Victoria was colonized by an insectivorous generalist and in less than 20 000 years, several clades of specialized herbivores evolved. Carnivorous versus herbivorous lifestyles in cichlids require many different adaptations in functional morphology, physiology and behaviour. Ecological transitions in either direction thus require many traits to change in a concerted fashion, which could be facilitated if genomic regions underlying these traits were physically linked or pleiotropic. However, linkage/pleiotropy could also constrain evolvability. To investigate components of the genetic architecture of a suite of traits that distinguish invertivores from algae scrapers, we performed quantitative trait locus (QTL) mapping using a second-generation hybrid cross. While we found indications of linkage/pleiotropy within trait complexes, QTLs for distinct traits were distributed across several unlinked genomic regions. Thus, a mixture of independently segregating variation and some pleiotropy may underpin the rapid trophic transitions. We argue that the emergence and maintenance of associations between the different genomic regions underpinning co-adapted traits that evolved and persist against some gene flow required reproductive isolation.
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Affiliation(s)
- Anna F. Feller
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
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28
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Frei D, De-Kayne R, Selz OM, Seehausen O, Feulner PGD. Genomic variation from an extinct species is retained in the extant radiation following speciation reversal. Nat Ecol Evol 2022; 6:461-468. [PMID: 35210577 DOI: 10.1038/s41559-022-01665-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/10/2022] [Indexed: 11/09/2022]
Abstract
Ecosystem degradation and biodiversity loss are major global challenges. When reproductive isolation between species is contingent on the interaction of intrinsic lineage traits with features of the environment, environmental change can weaken reproductive isolation and result in extinction through hybridization. By this process called speciation reversal, extinct species can leave traces in genomes of extant species through introgressive hybridization. Using historical and contemporary samples, we sequenced all four species of an Alpine whitefish radiation before and after anthropogenic lake eutrophication and the associated loss of one species through speciation reversal. Despite the extinction of this taxon, substantial fractions of its genome, including regions shaped by positive selection before eutrophication, persist within surviving species as a consequence of introgressive hybridization during eutrophication. Given the prevalence of environmental change, studying speciation reversal and its genomic consequences provides fundamental insights into evolutionary processes and informs biodiversity conservation.
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Affiliation(s)
- David Frei
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Rishi De-Kayne
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Oliver M Selz
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Philine G D Feulner
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Eawag-Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland. .,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.
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29
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Abstract
Ontogenetic diet shifts, where individuals change their resource use during development, are the rule rather than the exception in the animal world. Here, we aim to understand how such changes in diet during development affect the conditions for an adaptive radiation in the presence of ecological opportunity. We use a size-structured consumer–resource model and the adaptive dynamics approach to study the ecological conditions for speciation. We assume that small individuals all feed on a shared resource. Large individuals, on the other hand, have access to multiple food sources on which they can specialize. We find that competition among small individuals can hinder an adaptive radiation to unfold, despite plenty of ecological opportunity for large individuals. When small individuals experience strong competition for food, they grow slowly and only a few individuals are recruited to the larger size classes. Hence, competition for food among large individuals is weak and there is therefore no disruptive selection. In addition, initial conditions determine if an adaptive radiation occurs or not. A consumer population initially dominated by small individuals will not radiate. On the other hand, a population initially dominated by large individuals may undergo adaptive radiation and diversify into multiple species.
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Affiliation(s)
- Hanna Ten Brink
- Eawag Swiss Federal Institute of Aquatic Science and Technology, Department of Fish Ecology and Evolution, Center of Ecology, Evolution, and Biogeochemistry, Kastanienbaum, Switzerland
| | - Ole Seehausen
- Eawag Swiss Federal Institute of Aquatic Science and Technology, Department of Fish Ecology and Evolution, Center of Ecology, Evolution, and Biogeochemistry, Kastanienbaum, Switzerland.,Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
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30
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Fark SN, Gerber S, Alonzo SH, Kindsvater HK, Meier JI, Seehausen O. Multispecies colour polymorphisms associated with contrasting microhabitats in two Mediterranean wrasse radiations. J Evol Biol 2022; 35:633-647. [PMID: 35304789 PMCID: PMC9311657 DOI: 10.1111/jeb.13999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/14/2022] [Accepted: 02/20/2022] [Indexed: 12/01/2022]
Abstract
Intraspecific colour polymorphisms (CPs) present unique opportunities to study fundamental evolutionary questions, such as the link between ecology and phenotype, mechanisms maintaining genetic diversity and their putative role in speciation. Wrasses are highly diverse in ecology and morphology and harbour a variety of colour‐polymorphic species. In the Mediterranean Sea, wrasses of the tribe Labrini evolved two species radiations each harbouring several species with a brown and a green morph. The colour morphs occur in complete sympatry in mosaic habitats with rocky outcrops and Neptune grass patches. Morph‐specific differences had not been characterized yet and the evolutionary forces maintaining them remained unknown. With genome‐wide data for almost all Labrini species, we show that species with CPs are distributed across the phylogeny, but show evidence of hybridization. This suggests that the colour morphs are either ancient and have been lost repeatedly, that they have evolved repeatedly or have been shared via hybridization. Focusing on two polymorphic species, we find that each colour morph is more common in the microhabitat providing the best colour match and that the morphs exhibit additional behavioural and morphological differences further improving crypsis in their respective microhabitats. We find little evidence for genetic differentiation between the morphs in either species. Therefore, we propose that these colour morphs represent a multi‐niche polymorphism as an adaptation to the highly heterogeneous habitat. Our study highlights how colour polymorphism (CP) can be advantageous in mosaic habitats and that Mediterranean wrasses are an ideal system to study trans‐species polymorphisms, i.e. polymorphisms maintained across several species, in adaptive radiations.
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Affiliation(s)
- Sarya N Fark
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Steve Gerber
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Suzanne H Alonzo
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California, USA
| | - Holly K Kindsvater
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
| | - Joana I Meier
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Zoology, University of Cambridge, Cambridge, UK.,Center of Ecology, Evolution & Biogeochemistry, Swiss Institute for Environmental Sciences and Technology (EAWAG), Kastanienbaum, Switzerland
| | - Ole Seehausen
- Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Center of Ecology, Evolution & Biogeochemistry, Swiss Institute for Environmental Sciences and Technology (EAWAG), Kastanienbaum, Switzerland
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31
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Cuenca-Cambronero M, Courtney-Mustaphi CJ, Greenway R, Heiri O, Hudson CM, King L, Lemmen KD, Moosmann M, Muschick M, Ngoepe N, Seehausen O, Matthews B. An integrative paleolimnological approach for studying evolutionary processes. Trends Ecol Evol 2022; 37:488-496. [DOI: 10.1016/j.tree.2022.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 10/19/2022]
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32
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Maasri A, Jähnig SC, Adamescu MC, Adrian R, Baigun C, Baird DJ, Batista‐Morales A, Bonada N, Brown LE, Cai Q, Campos‐Silva JV, Clausnitzer V, Contreras‐MacBeath T, Cooke SJ, Datry T, Delacámara G, De Meester L, Dijkstra KB, Do VT, Domisch S, Dudgeon D, Erös T, Freitag H, Freyhof J, Friedrich J, Friedrichs‐Manthey M, Geist J, Gessner MO, Goethals P, Gollock M, Gordon C, Grossart H, Gulemvuga G, Gutiérrez‐Fonseca PE, Haase P, Hering D, Hahn HJ, Hawkins CP, He F, Heino J, Hermoso V, Hogan Z, Hölker F, Jeschke JM, Jiang M, Johnson RK, Kalinkat G, Karimov BK, Kasangaki A, Kimirei IA, Kohlmann B, Kuemmerlen M, Kuiper JJ, Kupilas B, Langhans SD, Lansdown R, Leese F, Magbanua FS, Matsuzaki SS, Monaghan MT, Mumladze L, Muzon J, Mvogo Ndongo PA, Nejstgaard JC, Nikitina O, Ochs C, Odume O, Opperman JJ, Patricio H, Pauls S, Raghavan R, Ramírez A, Rashni B, Ross‐Gillespie V, Samways MJ, Schäfer RB, Schmidt‐Kloiber A, Seehausen O, Shah DN, Sharma S, Soininen J, Sommerwerk N, Stockwell JD, Suhling F, Tachamo Shah RD, Tharme RE, Thorp JH, Tickner D, Tockner K, Tonkin JD, Valle M, Vitule J, Volk M, Wang D, Wolter C, Worischka S. Cover Image. Ecol Lett 2022. [DOI: 10.1111/ele.13793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Chaparro-Pedraza PC, Roth G, Seehausen O. The enrichment paradox in adaptive radiations: Emergence of predators hinders diversification in resource rich environments. Ecol Lett 2022; 25:802-813. [PMID: 35032146 PMCID: PMC9303570 DOI: 10.1111/ele.13955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/25/2021] [Accepted: 12/08/2021] [Indexed: 12/18/2022]
Abstract
Adaptive radiations are known for rapid niche diversification in response to ecological opportunity. While most resources usually exist prior to adaptive radiation, novel niches associated with novel resources can be created as a clade diversifies. For example, in African lake cichlid radiations some species prey upon other species of the clade (intraclade consumers). Using a trait‐based eco‐evolutionary model, we investigate the evolution of intraclade consumers in adaptive radiations and the effect of this novel trophic interaction on the diversification process of the radiating clade. We find that the evolutionary emergence of intraclade consumers halts the diversification processes of other ecomorphs as a result of increased top‐down control of density. Because high productivity enables earlier evolution of intraclade consumers, highly productive environments come to harbour less species‐rich radiations than comparable radiations in less productive environments. Our results reveal how macroevolutionary and community patterns can emerge from ecological and microevolutionary processes.
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Affiliation(s)
- P Catalina Chaparro-Pedraza
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.,Department Systems Analysis, Integrated Assessment and Modelling, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Dübendorf, Switzerland
| | - Gregory Roth
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland
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34
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Maasri A, Jähnig SC, Adamescu MC, Adrian R, Baigun C, Baird DJ, Batista-Morales A, Bonada N, Brown LE, Cai Q, Campos-Silva JV, Clausnitzer V, Contreras-MacBeath T, Cooke SJ, Datry T, Delacámara G, De Meester L, Dijkstra KDB, Do VT, Domisch S, Dudgeon D, Erös T, Freitag H, Freyhof J, Friedrich J, Friedrichs-Manthey M, Geist J, Gessner MO, Goethals P, Gollock M, Gordon C, Grossart HP, Gulemvuga G, Gutiérrez-Fonseca PE, Haase P, Hering D, Hahn HJ, Hawkins CP, He F, Heino J, Hermoso V, Hogan Z, Hölker F, Jeschke JM, Jiang M, Johnson RK, Kalinkat G, Karimov BK, Kasangaki A, Kimirei IA, Kohlmann B, Kuemmerlen M, Kuiper JJ, Kupilas B, Langhans SD, Lansdown R, Leese F, Magbanua FS, Matsuzaki SIS, Monaghan MT, Mumladze L, Muzon J, Mvogo Ndongo PA, Nejstgaard JC, Nikitina O, Ochs C, Odume ON, Opperman JJ, Patricio H, Pauls SU, Raghavan R, Ramírez A, Rashni B, Ross-Gillespie V, Samways MJ, Schäfer RB, Schmidt-Kloiber A, Seehausen O, Shah DN, Sharma S, Soininen J, Sommerwerk N, Stockwell JD, Suhling F, Tachamo Shah RD, Tharme RE, Thorp JH, Tickner D, Tockner K, Tonkin JD, Valle M, Vitule J, Volk M, Wang D, Wolter C, Worischka S. A global agenda for advancing freshwater biodiversity research. Ecol Lett 2021; 25:255-263. [PMID: 34854211 DOI: 10.1111/ele.13931] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 10/20/2021] [Accepted: 10/26/2021] [Indexed: 12/20/2022]
Abstract
Global freshwater biodiversity is declining dramatically, and meeting the challenges of this crisis requires bold goals and the mobilisation of substantial resources. While the reasons are varied, investments in both research and conservation of freshwater biodiversity lag far behind those in the terrestrial and marine realms. Inspired by a global consultation, we identify 15 pressing priority needs, grouped into five research areas, in an effort to support informed stewardship of freshwater biodiversity. The proposed agenda aims to advance freshwater biodiversity research globally as a critical step in improving coordinated actions towards its sustainable management and conservation.
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Affiliation(s)
- Alain Maasri
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,The Academy of Natural Sciences of Drexel University, Philadelphia, Pennsylvania, USA
| | - Sonja C Jähnig
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Humboldt-Universität zu Berlin, Berlin, Germany
| | - Mihai C Adamescu
- Research Center in Systems Ecology and Sustainability, University of Bucharest, Bucharest, Romania
| | - Rita Adrian
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Claudio Baigun
- Universidad Nacional de San Martin, San Martin, Argentina
| | - Donald J Baird
- Environment & Climate Change Canada/University of New Brunswick, Fredericton, New Brunswick, Canada
| | | | - Núria Bonada
- Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Spain
| | - Lee E Brown
- School of Geography & water@leeds, University of Leeds, Leeds, UK
| | - Qinghua Cai
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | | | - Viola Clausnitzer
- Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany
| | | | | | | | | | - Luc De Meester
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Katholieke Universiteit Leuven, Leuven, Belgium
| | | | - Van Tu Do
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Sami Domisch
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | | | - Tibor Erös
- Balaton Limnological Research Institute, Tihany, Hungary
| | | | - Joerg Freyhof
- Museum für Naturkunde-Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | | | - Martin Friedrichs-Manthey
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | | | - Mark O Gessner
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Berlin Institute of Technology, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | | | | | | | - Hans-Peter Grossart
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
| | - Georges Gulemvuga
- International Commission for Congo-Ubangui-Sangha Basin, Kinshasa, D.R. Congo
| | | | - Peter Haase
- Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany.,University of Duisburg-Essen, Essen, Germany
| | | | - Hans Jürgen Hahn
- University of Koblenz-Landau, Koblenz and Landau, Germany.,Institute for Groundwater Ecology IGÖ GmbH, Landau, Germany
| | | | - Fengzhi He
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Jani Heino
- Finnish Environment Institute, Oulu, Finland
| | - Virgilio Hermoso
- Centre de Ciència i Tecnologia Forestal de Catalunya, Solsona, Spain
| | - Zeb Hogan
- University of Nevada, Reno, Nevada, USA
| | - Franz Hölker
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Jonathan M Jeschke
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Meilan Jiang
- Chongqing University of Posts and Telecommunications, Chongqing, China
| | | | - Gregor Kalinkat
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Bakhtiyor K Karimov
- Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Tashkent, Uzbekistan
| | | | | | | | | | - Jan J Kuiper
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - Benjamin Kupilas
- Norwegian Institute for Water Research, Oslo, Norway.,University of Münster, Münster, Germany
| | - Simone D Langhans
- Basque Centre for Climate Change (BC3), Leioa, Spain.,University of Otago, Dunedin, New Zealand
| | | | | | | | | | - Michael T Monaghan
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Levan Mumladze
- Institute of Zoology, Ilia State University, Tiblis, Georgia
| | - Javier Muzon
- Universidad Nacional de Avellaneda, Avellaneda, Argentina
| | | | - Jens C Nejstgaard
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | | | - Clifford Ochs
- University of Mississippi, University Park, Mississippi, USA
| | | | | | | | - Steffen U Pauls
- Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, Germany.,Justus-Liebig-University, Gießen, Germany
| | - Rajeev Raghavan
- Kerala University of Fisheries and Ocean Studies, Kochi, India
| | - Alonso Ramírez
- North Carolina State University, Raleigh, North Carolina, USA
| | - Bindiya Rashni
- Institute of Applied Science, University of the South Pacific, Suva, Fiji
| | | | | | - Ralf B Schäfer
- University of Koblenz-Landau, Koblenz and Landau, Germany
| | | | - Ole Seehausen
- University of Bern, Bern, Switzerland.,Swiss Federal Institute of Aquatic Science and Technology (Eawag), Kastanienbaum, Switzerland
| | | | | | | | - Nike Sommerwerk
- Museum für Naturkunde-Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | | | - Frank Suhling
- Technische Universität Braunschweig, Braunschweig, Germany
| | | | | | | | | | - Klement Tockner
- Senckenberg Society for Nature Research, Frankfurt am Main, Germany.,Goethe University, Frankfurt am Main, Germany
| | - Jonathan D Tonkin
- School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Mireia Valle
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, California, USA.,AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Jean Vitule
- Federal University of Paraná, Curitiba, Brazil
| | - Martin Volk
- Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Ding Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Christian Wolter
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
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Hudson CM, Ladd SN, Leal MC, Schubert CJ, Seehausen O, Matthews B. Fit and fatty freshwater fish: contrasting polyunsaturated fatty acid phenotypes between hybridizing stickleback lineages. OIKOS 2021. [DOI: 10.1111/oik.08558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Cameron M. Hudson
- Dept of Fish Ecology and Evolution, Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry Kastanienbaum Switzerland
- Aquatic Ecology and Evolution, Inst. of Ecology and Evolution, Univ. of Bern Bern Switzerland
| | - S. Nemiah Ladd
- Dept of Surface Waters – Research and Management, Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry Kastanienbaum Switzerland
- Ecosystem Physiology, Univ. of Freiburg Freiburg Germany
| | - Miguel C. Leal
- ECOMARE, CESAM – Center for Environmental and Marine Studies, Dept of Biology, Univ. of Aveiro, Campus Universitário de Santiago Aveiro Portugal
| | - Carsten J. Schubert
- Dept of Surface Waters – Research and Management, Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry Kastanienbaum Switzerland
| | - Ole Seehausen
- Dept of Fish Ecology and Evolution, Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry Kastanienbaum Switzerland
- Aquatic Ecology and Evolution, Inst. of Ecology and Evolution, Univ. of Bern Bern Switzerland
| | - Blake Matthews
- Dept of Fish Ecology and Evolution, Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Center of Ecology, Evolution and Biochemistry Kastanienbaum Switzerland
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36
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Marques DA, Lucek K, Sousa VC, Excoffier L, Seehausen O. Reply to "Re-evaluating the evidence for facilitation of stickleback speciation by admixture in the Lake Constance basin". Nat Commun 2021; 12:2807. [PMID: 33990586 PMCID: PMC8121787 DOI: 10.1038/s41467-021-23096-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 04/15/2021] [Indexed: 11/09/2022] Open
Affiliation(s)
- David A Marques
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.,Computational and Molecular Population Genetics, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Kay Lucek
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Vitor C Sousa
- Computational and Molecular Population Genetics, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Centre for Ecology, Evolution and Environmental Changes, University of Lisbon, Lisbon, Portugal
| | - Laurent Excoffier
- Computational and Molecular Population Genetics, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland. .,Department of Fish Ecology and Evolution, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Center for Ecology, Evolution and Biogeochemistry, Kastanienbaum, Switzerland.
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37
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Hudson CM, Lucek K, Marques DA, Alexander TJ, Moosmann M, Spaak P, Seehausen O, Matthews B. Threespine Stickleback in Lake Constance: The Ecology and Genomic Substrate of a Recent Invasion. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2020.611672] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Invasive species can be powerful models for studying contemporary evolution in natural environments. As invading organisms often encounter new habitats during colonization, they will experience novel selection pressures. Threespine stickleback (Gasterosteus aculeatus complex) have recently colonized large parts of Switzerland and are invasive in Lake Constance. Introduced to several watersheds roughly 150 years ago, they spread across the Swiss Plateau (400–800 m a.s.l.), bringing three divergent hitherto allopatric lineages into secondary contact. As stickleback have colonized a variety of different habitat types during this recent range expansion, the Swiss system is a useful model for studying contemporary evolution with and without secondary contact. For example, in the Lake Constance region there has been rapid phenotypic and genetic divergence between a lake population and some stream populations. There is considerable phenotypic variation within the lake population, with individuals foraging in and occupying littoral, offshore pelagic, and profundal waters, the latter of which is a very unusual habitat for stickleback. Furthermore, adults from the lake population can reach up to three times the size of adults from the surrounding stream populations, and are large by comparison to populations globally. Here, we review the historical origins of the threespine stickleback in Switzerland, and the ecomorphological variation and genomic basis of its invasion in Lake Constance. We also outline the potential ecological impacts of this invasion, and highlight the interest for contemporary evolution studies.
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38
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Feller AF, Ogi V, Seehausen O, Meier JI. Identification of a novel sex determining chromosome in cichlid fishes that acts as XY or ZW in different lineages. Hydrobiologia 2021; 848:3727-3745. [PMID: 34720170 PMCID: PMC8550731 DOI: 10.1007/s10750-021-04560-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 02/02/2021] [Accepted: 02/23/2021] [Indexed: 05/02/2023]
Abstract
UNLABELLED Sex determination systems are highly conserved among most vertebrates with genetic sex determination, but can be variable and evolve rapidly in some. Here, we study sex determination in a clade with exceptionally high sex chromosome turnover rates. We identify the sex determining chromosomes in three interspecific crosses of haplochromine cichlid fishes from Lakes Victoria and Malawi. We find evidence for different sex determiners in each cross. In the Malawi cross and one Victoria cross the same chromosome is sex-linked but while females are the heterogametic sex in the Malawi species, males are the heterogametic sex in the Victoria species. This chromosome has not previously been reported to be sex determining in cichlids, increasing the number of different chromosomes shown to be sex determining in cichlids to 12. All Lake Victoria species of our crosses are less than 15,000 years divergent, and we identified different sex determiners among them. Our study provides further evidence for the diversity and evolutionary flexibility of sex determination in cichlids, factors which might contribute to their rapid adaptive radiations. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10750-021-04560-7.
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Affiliation(s)
- Anna F. Feller
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
| | - Vera Ogi
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
| | - Joana I. Meier
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, 3012 Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry (CEEB), Eawag Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
- Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ UK
- St John’s College, University of Cambridge, St John’s Street, Cambridge, CB2 1TP UK
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Carleton KL, Conte MA, Malinsky M, Nandamuri SP, Sandkam BA, Meier JI, Mwaiko S, Seehausen O, Kocher TD. Movement of transposable elements contributes to cichlid diversity. Mol Ecol 2020; 29:4956-4969. [PMID: 33049090 DOI: 10.1111/mec.15685] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022]
Abstract
African cichlid fishes are a prime model for studying speciation mechanisms. Despite the development of extensive genomic resources, it has been difficult to determine which sources of genetic variation are responsible for cichlid phenotypic variation. One of their most variable phenotypes is visual sensitivity, with some of the largest spectral shifts among vertebrates. These shifts arise primarily from differential expression of seven cone opsin genes. By mapping expression quantitative trait loci (eQTL) in intergeneric crosses of Lake Malawi cichlids, we previously identified four causative genetic variants that correspond to indels in the promoters of either key transcription factors or an opsin gene. In this comprehensive study, we show that these indels are the result of the movement of transposable elements (TEs) that correlate with opsin expression variation across the Malawi flock. In tracking the evolutionary history of these particular indels, we found they are endemic to Lake Malawi, suggesting that these TEs are recently active and are segregating within the Malawi cichlid lineage. However, an independent indel has arisen at a similar genomic location in one locus outside of the Malawi flock. The convergence in TE movement suggests these loci are primed for TE insertion and subsequent deletions. Increased TE mobility may be associated with interspecific hybridization, which disrupts mechanisms of TE suppression. This might provide a link between cichlid hybridization and accelerated regulatory variation. Overall, our study suggests that TEs may be an important driver of key regulatory changes, facilitating rapid phenotypic change and possibly speciation in African cichlids.
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Affiliation(s)
- Karen L Carleton
- Department of Biology, University of Maryland, College Park, MD, USA
| | - Matthew A Conte
- Department of Biology, University of Maryland, College Park, MD, USA
| | - Milan Malinsky
- Wellcome Sanger Institute, Cambridge, UK.,Zoological Institute, University of Basel, Basel, Switzerland
| | | | | | - Joana I Meier
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Computational and Molecular Population Genetics Laboratory, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland
| | - Salome Mwaiko
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Ole Seehausen
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Thomas D Kocher
- Department of Biology, University of Maryland, College Park, MD, USA
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40
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Selz OM, Dönz CJ, Vonlanthen P, Seehausen O. A taxonomic revision of the whitefish of lakes Brienz and Thun, Switzerland, with descriptions of four new species (Teleostei, Coregonidae). Zookeys 2020; 989:79-162. [PMID: 33223897 PMCID: PMC7669820 DOI: 10.3897/zookeys.989.32822] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 08/07/2019] [Indexed: 12/16/2022] Open
Abstract
The alpha taxonomy of the endemic whitefish of lakes Brienz and Thun, Switzerland, is revised. We evaluate the status of seven known species: Coregonus steinmanni sp. nov., Coregonus profundus sp. nov. and Coregonus acrinasus sp. nov. are endemic to Lake Thun; Coregonus Brienzii sp. nov. is endemic to Lake Brienz; and C. alpinus, C. albellus, and C. fatioi from lakes Brienz and Thun are redescribed. One of these species, C. alpinus, is revised, since the lectotype for this species is incongruent with the species description given by Kottelat (1997) and Kottelat and Freyhof (2007). The name C. alpinus is thus retained for the lectotype designated by Kottelat (1997) and a new description of this taxon provided. For the species otherwise described by Kottelat (1997) and Kottelat and Freyhof (2007) as C. alpinus the new name C. profundus is designated. Coregonus acrinasus is genetically partially of allochthonous origin, closely related to the radiation of Lake Constance, and we therefore compare it to all recognized species of Lake Constance, C. wartmanni, C. macrophthalmus, C. arenicolus, and C. gutturosus.
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Affiliation(s)
- Oliver M Selz
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland.,Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland University of Bern Bern Switzerland
| | - Carmela J Dönz
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland.,Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland University of Bern Bern Switzerland
| | - Pascal Vonlanthen
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland.,Aquabios GmbH, Les Fermes 57, 1792 Cordast, Switzerland Aquabios GmbH Cordast Switzerland
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Centre for Ecology, Evolution & Biogeochemistry, Eawag: Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland.,Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland University of Bern Bern Switzerland
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41
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Gobbin TP, Vanhove MPM, Seehausen O, Maan ME. Microhabitat distributions and species interactions of ectoparasites on the gills of cichlid fish in Lake Victoria, Tanzania. Int J Parasitol 2020; 51:201-214. [PMID: 33161003 DOI: 10.1016/j.ijpara.2020.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 10/23/2022]
Abstract
Heterogeneous exposure to parasites may contribute to host species differentiation. Hosts often harbour multiple parasite species which may interact and thus modify each other's effects on host fitness. Antagonistic or synergistic interactions between parasites may be detectable as niche segregation within hosts. Consequently, the within-host distribution of different parasite taxa may constitute an important axis of infection variation among host populations and species. We investigated the microhabitat distributions and species interactions of gill parasites (four genera) infecting 14 sympatric cichlid species in Lake Victoria, Tanzania. We found that the two most abundant ectoparasite genera (the monogenean Cichlidogyrus spp. and the copepod Lamproglena monodi) were non-randomly distributed across the host gills and their spatial distribution differed between host species. This may indicate microhabitat selection by the parasites and cryptic differences in the host-parasite interaction among host species. Relationships among ectoparasite genera were synergistic: the abundances of Cichlidogyrus spp. and the copepods L. monodi and Ergasilus lamellifer tended to be positively correlated. In contrast, relationships among morphospecies of Cichlidogyrus were antagonistic: the abundances of morphospecies were negatively correlated. Together with niche overlap, this suggests competition among morphospecies of Cichlidogyrus. We also assessed the reproductive activity of the copepod species (the proportion of individuals carrying egg clutches), as it may be affected by the presence of other parasites and provide another indicator of the species specificity of the host-parasite relationship. Copepod reproductive activity did not differ between host species and was not associated with the presence or abundance of other parasites, suggesting that these are generalist parasites, thriving in all cichlid species examined from Lake Victoria.
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Affiliation(s)
- Tiziana P Gobbin
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland; Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland; Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands.
| | - Maarten P M Vanhove
- Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium; Laboratory of Biodiversity and Evolutionary Genomics, Department of Biology, University of Leuven, Leuven, Belgium; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Ole Seehausen
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland; Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Martine E Maan
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
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42
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Gobbin TP, Tiemersma R, Leone G, Seehausen O, Maan ME. Patterns of ectoparasite infection in wild-caught and laboratory-bred cichlid fish, and their hybrids, implicate extrinsic rather than intrinsic causes of species differences in infection. Hydrobiologia 2020; 848:3817-3831. [PMID: 34720171 PMCID: PMC8550742 DOI: 10.1007/s10750-020-04423-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/07/2020] [Accepted: 09/22/2020] [Indexed: 06/13/2023]
Abstract
Parasite-mediated selection may initiate or enhance differentiation between host populations that are exposed to different parasite infections. Variation in infection among populations may result from differences in host ecology (thereby exposure to certain parasites) and/or intrinsic immunological traits. Species of cichlid fish, even when recently diverged, often differ in parasite infection, but the contributions of intrinsic and extrinsic causes are unknown. Here, we compare infection patterns between two closely related host species from Lake Victoria (genus Pundamilia), using wild-caught and first-generation laboratory-reared fish, as well as laboratory-reared hybrids. Three of the commonest ectoparasite species observed in the wild were also present in the laboratory populations. However, the infection differences between the host species as observed in the wild were not maintained in laboratory conditions. In addition, hybrids did not differ in infection from either parental species. These findings suggest that the observed species differences in infection in the wild might be mainly driven by ecology-related effects (i.e. differential exposure), rather than by intrinsic species differences in immunological traits. Thus, while there is scope for parasite-mediated selection in Pundamilia in the wild, it has apparently not yet generated divergent evolutionary responses and may not enhance assortative mating among closely related species.
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Affiliation(s)
- Tiziana P. Gobbin
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, Universitat Bern, Bern, Switzerland
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Ron Tiemersma
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Giulia Leone
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Ole Seehausen
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, Universitat Bern, Bern, Switzerland
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Martine E. Maan
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
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43
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Abstract
Adaptive radiations (ARs) frequently show remarkable repeatability where single lineages undergo multiple independent episodes of AR in distant places and long-separate time points. Genetic variation generated through hybridization between distantly related lineages can promote AR. This mechanism, however, requires rare coincidence in space and time between a hybridization event and opening of ecological opportunity, because hybridization generates large genetic variation only locally and it will persist only for a short period. Hence, hybridization seems unlikely to explain recurrent AR in the same lineage. Contrary to these expectations, our evolutionary computer simulations demonstrate that admixture variation can geographically spread and persist for long periods if the hybrid population becomes separated into isolated sub-lineages. Subsequent secondary hybridization of some of these can reestablish genetic polymorphisms from the ancestral hybridization in places far from the birthplace of the hybrid clade and long after the ancestral hybridization event. Consequently, simulations revealed conditions where exceptional genetic variation, once generated through a rare hybridization event, can facilitate multiple ARs exploiting ecological opportunities available at distant points in time and space.
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Affiliation(s)
- Kotaro Kagawa
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Hochschulstrasse 6, 3012 Bern, Switzerland
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba, Stendai, Miyagi 980-8578, Japan
| | - Ole Seehausen
- Department of Fish Ecology and Evolution, Center for Ecology, Evolution and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology, Seestrasse 79, 6047 Kastanienbaum, Switzerland
- Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, Hochschulstrasse 6, 3012 Bern, Switzerland
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44
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Junker J, Rick JA, McIntyre PB, Kimirei I, Sweke EA, Mosille JB, Wehrli B, Dinkel C, Mwaiko S, Seehausen O, Wagner CE. Structural genomic variation leads to genetic differentiation in Lake Tanganyika's sardines. Mol Ecol 2020; 29:3277-3298. [PMID: 32687665 DOI: 10.1111/mec.15559] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 01/03/2023]
Abstract
Identifying patterns in genetic structure and the genetic basis of ecological adaptation is a core goal of evolutionary biology and can inform the management and conservation of species that are vulnerable to population declines exacerbated by climate change. We used reduced-representation genomic sequencing methods to gain a better understanding of genetic structure among and within populations of Lake Tanganyika's two sardine species, Limnothrissa miodon and Stolothrissa tanganicae. Samples of these ecologically and economically important species were collected across the length of Lake Tanganyika, as well as from nearby Lake Kivu, where L. miodon was introduced in 1959. Our results reveal differentiation within both S. tanganicae and L. miodon that is not explained by geography. Instead, this genetic differentiation is due to the presence of large sex-specific regions in the genomes of both species, but involving different polymorphic sites in each species. Our results therefore indicate rapidly evolving XY sex determination in the two species. Additionally, we found evidence of a large chromosomal rearrangement in L. miodon, creating two homokaryotypes and one heterokaryotype. We found all karyotypes throughout Lake Tanganyika, but the frequencies vary along a north-south gradient and differ substantially in the introduced Lake Kivu population. We do not find evidence for significant isolation by distance, even over the hundreds of kilometres covered by our sampling, but we do find shallow population structure.
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Affiliation(s)
- Julian Junker
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Jessica A Rick
- Department of Botany and Program in Ecology, University of Wyoming, Laramie, WY, USA
| | - Peter B McIntyre
- Department of Natural Resources, Cornell University, Ithaca, NY, USA
| | - Ismael Kimirei
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Emmanuel A Sweke
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania.,Deep Sea Fishing Authority (DSFA), Zanzibar, Tanzania
| | - Julieth B Mosille
- Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania
| | - Bernhard Wehrli
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zürich, Switzerland
| | - Christian Dinkel
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Salome Mwaiko
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Ole Seehausen
- EAWAG Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland.,Division of Aquatic Ecology, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland
| | - Catherine E Wagner
- Department of Botany and Program in Ecology, University of Wyoming, Laramie, WY, USA
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45
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Feller AF, Selz OM, McGee MD, Meier JI, Mwaiko S, Seehausen O. Rapid generation of ecologically relevant behavioral novelty in experimental cichlid hybrids. Ecol Evol 2020; 10:7445-7462. [PMID: 32760540 PMCID: PMC7391563 DOI: 10.1002/ece3.6471] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 01/25/2023] Open
Abstract
The East African cichlid radiations are characterized by repeated and rapid diversification into many distinct species with different ecological specializations and by a history of hybridization events between nonsister species. Such hybridization might provide important fuel for adaptive radiation. Interspecific hybrids can have extreme trait values or novel trait combinations and such transgressive phenotypes may allow some hybrids to explore ecological niches neither of the parental species could tap into. Here, we investigate the potential of second-generation (F2) hybrids between two generalist cichlid species from Lake Malawi to exploit a resource neither parental species is specialized on: feeding by sifting sand. Some of the F2 hybrids phenotypically resembled fish of species that are specialized on sand sifting. We combined experimental behavioral and morphometric approaches to test whether the F2 hybrids are transgressive in both morphology and behavior related to sand sifting. We then performed a quantitative trait loci (QTL) analysis using RADseq markers to investigate the genetic architecture of morphological and behavioral traits. We show that transgression is present in several morphological traits, that novel trait combinations occur, and we observe transgressive trait values in sand sifting behavior in some of the F2 hybrids. Moreover, we find QTLs for morphology and for sand sifting behavior, suggesting the existence of some loci with moderate to large effects. We demonstrate that hybridization has the potential to rapidly generate novel and ecologically relevant phenotypes that may be suited to a niche neither of the parental species occupies. Interspecific hybridization may thereby contribute to the rapid generation of ecological diversity in cichlid radiations.
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Affiliation(s)
- Anna F. Feller
- Division of Aquatic Ecology and EvolutionInstitute of Ecology and EvolutionUniversity of BernBernSwitzerland
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
| | - Oliver M. Selz
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
| | - Matthew D. McGee
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
- School of Biological SciencesMonash UniversityClaytonVic.Australia
| | - Joana I. Meier
- Division of Aquatic Ecology and EvolutionInstitute of Ecology and EvolutionUniversity of BernBernSwitzerland
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
- Department of ZoologyUniversity of CambridgeCambridgeUK
- St John’s CollegeUniversity of CambridgeCambridgeUK
| | - Salome Mwaiko
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
| | - Ole Seehausen
- Division of Aquatic Ecology and EvolutionInstitute of Ecology and EvolutionUniversity of BernBernSwitzerland
- Department of Fish Ecology and EvolutionCentre of Ecology, Evolution and BiogeochemistryEAWAG Swiss Federal Institute of Aquatic Science and TechnologyKastanienbaumSwitzerland
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46
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Blackman RC, Bruder A, Burdon FJ, Convey P, Funk WC, Jähnig SC, Kishe MA, Moretti MS, Natugonza V, Pawlowski J, Stubbington R, Zhang X, Seehausen O, Altermatt F. A meeting framework for inclusive and sustainable science. Nat Ecol Evol 2020; 4:668-671. [PMID: 32332998 DOI: 10.1038/s41559-020-1190-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rosetta C Blackman
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Andreas Bruder
- Laboratory of Applied Microbiology, University of Applied Sciences and Arts of Southern Switzerland, Bellinzona, Switzerland
| | - Francis J Burdon
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | | | - W Chris Funk
- Department of Biology, Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
| | - Sonja C Jähnig
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Department of Ecosystem Research, Berlin, Germany
| | | | - Marcelo S Moretti
- Laboratory of Aquatic Insect Ecology, Universidade Vila Velha, Vila Velha, Brazil
| | - Vianny Natugonza
- National Fisheries Resources Research Institute (NaFIRRI), Jinja, Uganda
| | - Jan Pawlowski
- Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland.,Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland.,ID-Gene ecodiagnostics, Campus Biotech Innovation Park, Geneva, Switzerland
| | - Rachel Stubbington
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Xiaowei Zhang
- School of the Environment, Nanjing University, Nanjing, China
| | - Ole Seehausen
- Department of Fish Ecology & Evolution, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland. .,Division of Aquatic Ecology & Evolution, Institute of Ecology & Evolution, University of Bern, Bern, Switzerland.
| | - Florian Altermatt
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland. .,Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.
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47
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Doenz CJ, Seehausen O. Rediscovery of a presumed extinct species, Salvelinus profundus, after re-oligotrophication. Ecology 2020; 101:e03065. [PMID: 32274790 DOI: 10.1002/ecy.3065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/29/2020] [Accepted: 02/25/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Carmela J Doenz
- Department of Fish Ecology & Evolution, Centre for Ecology, Evolution and Biogeochemistry, EAWAG, Kastanienbaum, 6047, Switzerland.,Department of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, 3012, Switzerland
| | - Ole Seehausen
- Department of Fish Ecology & Evolution, Centre for Ecology, Evolution and Biogeochemistry, EAWAG, Kastanienbaum, 6047, Switzerland.,Department of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, 3012, Switzerland
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48
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Feller AF, Haesler MP, Peichel CL, Seehausen O. Genetic architecture of a key reproductive isolation trait differs between sympatric and non-sympatric sister species of Lake Victoria cichlids. Proc Biol Sci 2020; 287:20200270. [PMID: 32259470 PMCID: PMC7209058 DOI: 10.1098/rspb.2020.0270] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
One hallmark of the East African cichlid radiations is the rapid evolution of reproductive isolation that is robust to full sympatry of many closely related species. Theory predicts that species persistence and speciation in sympatry with gene flow are facilitated if loci of large effect or physical linkage (or pleiotropy) underlie traits involved in reproductive isolation. Here, we investigate the genetic architecture of a key trait involved in behavioural isolation, male nuptial coloration, by crossing two sister species pairs of Lake Victoria cichlids of the genus Pundamilia and mapping nuptial coloration in the F2 hybrids. One is a young sympatric species pair, representative of an axis of colour motif differentiation, red-dorsum versus blue, that is highly recurrent in closely related sympatric species. The other is a species pair representative of colour motifs, red-chest versus blue, that are common in allopatric but uncommon in sympatric closely related species. We find significant quantitative trait loci (QTLs) with moderate to large effects (some overlapping) for red and yellow in the sympatric red-dorsum × blue cross, whereas we find no significant QTLs in the non-sympatric red-chest × blue cross. These findings are consistent with theory predicting that large effect loci or linkage/pleiotropy underlying mating trait differentiation could facilitate speciation and species persistence with gene flow in sympatry.
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Affiliation(s)
- Anna F Feller
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Marcel P Haesler
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
| | - Catherine L Peichel
- Division of Evolutionary Ecology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology and Evolution, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, EAWAG Swiss Federal Institute of Aquatic Science and Technology, 6047 Kastanienbaum, Switzerland
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49
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Gobbin TP, Vanhove MPM, Pariselle A, Groothuis TGG, Maan ME, Seehausen O. Temporally consistent species differences in parasite infection but no evidence for rapid parasite-mediated speciation in Lake Victoria cichlid fish. J Evol Biol 2020; 33:556-575. [PMID: 32163649 PMCID: PMC7318199 DOI: 10.1111/jeb.13615] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 02/17/2020] [Accepted: 03/04/2020] [Indexed: 12/31/2022]
Abstract
Parasites may have strong eco‐evolutionary interactions with their hosts. Consequently, they may contribute to host diversification. The radiation of cichlid fish in Lake Victoria provides a good model to study the role of parasites in the early stages of speciation. We investigated patterns of macroparasite infection in a community of 17 sympatric cichlids from a recent radiation and 2 older species from 2 nonradiating lineages, to explore the opportunity for parasite‐mediated speciation. Host species had different parasite infection profiles, which were only partially explained by ecological factors (diet, water depth). This may indicate that differences in infection are not simply the result of differences in exposure, but that hosts evolved species‐specific resistance, consistent with parasite‐mediated divergent selection. Infection was similar between sampling years, indicating that the direction of parasite‐mediated selection is stable through time. We morphologically identified 6 Cichlidogyrus species, a gill parasite that is considered a good candidate for driving parasite‐mediated speciation, because it is host species‐specific and has radiated elsewhere in Africa. Species composition of Cichlidogyrus infection was similar among the most closely related host species (members of the Lake Victoria radiation), but two more distantly related species (belonging to nonradiating sister lineages) showed distinct infection profiles. This is inconsistent with a role for Cichlidogyrus in the early stages of divergence. To conclude, we find significant interspecific variation in parasite infection profiles, which is temporally consistent. We found no evidence that Cichlidogyrus‐mediated selection contributes to the early stages of speciation. Instead, our findings indicate that species differences in infection accumulate after speciation.
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Affiliation(s)
- Tiziana P Gobbin
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands.,Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Maarten P M Vanhove
- Research Group Zoology: Biodiversity & Toxicology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Biology, Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Leuven, Belgium.,Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic.,Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Antoine Pariselle
- ISEM, CNRS, Université de Montpellier, IRD, Montpellier, France.,Faculty of Sciences, Laboratory of Biodiversity, Ecology and Genome, Mohammed V University in Rabat, Rabat, Morocco
| | - Ton G G Groothuis
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Martine E Maan
- Department of Fish Ecology and Evolution, Centre of Ecology, Evolution and Biogeochemistry, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland
| | - Ole Seehausen
- Division of Aquatic Ecology & Evolution, Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.,Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
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50
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Gillespie RG, Bennett GM, De Meester L, Feder JL, Fleischer RC, Harmon LJ, Hendry AP, Knope ML, Mallet J, Martin C, Parent CE, Patton AH, Pfennig KS, Rubinoff D, Schluter D, Seehausen O, Shaw KL, Stacy E, Stervander M, Stroud JT, Wagner C, Wogan GOU. Comparing Adaptive Radiations Across Space, Time, and Taxa. J Hered 2020; 111:1-20. [PMID: 31958131 PMCID: PMC7931853 DOI: 10.1093/jhered/esz064] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 10/28/2019] [Indexed: 01/02/2023] Open
Abstract
Adaptive radiation plays a fundamental role in our understanding of the evolutionary process. However, the concept has provoked strong and differing opinions concerning its definition and nature among researchers studying a wide diversity of systems. Here, we take a broad view of what constitutes an adaptive radiation, and seek to find commonalities among disparate examples, ranging from plants to invertebrate and vertebrate animals, and remote islands to lakes and continents, to better understand processes shared across adaptive radiations. We surveyed many groups to evaluate factors considered important in a large variety of species radiations. In each of these studies, ecological opportunity of some form is identified as a prerequisite for adaptive radiation. However, evolvability, which can be enhanced by hybridization between distantly related species, may play a role in seeding entire radiations. Within radiations, the processes that lead to speciation depend largely on (1) whether the primary drivers of ecological shifts are (a) external to the membership of the radiation itself (mostly divergent or disruptive ecological selection) or (b) due to competition within the radiation membership (interactions among members) subsequent to reproductive isolation in similar environments, and (2) the extent and timing of admixture. These differences translate into different patterns of species accumulation and subsequent patterns of diversity across an adaptive radiation. Adaptive radiations occur in an extraordinary diversity of different ways, and continue to provide rich data for a better understanding of the diversification of life.
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Affiliation(s)
- Rosemary G Gillespie
- University of California, Berkeley, Essig Museum of Entomology & Department of Environmental Science, Policy, and Management, Berkeley, CA
| | - Gordon M Bennett
- University of California Merced, Life and Environmental Sciences Unit, Merced, CA
| | - Luc De Meester
- University of Leuven, Laboratory of Aquatic Ecology, Evolution and Conservation, Leuven, Belguim
| | - Jeffrey L Feder
- University of Notre Dame, Dept. of Biological Sciences, Notre Dame, IN
| | - Robert C Fleischer
- Center for Conservation Genomics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC
| | - Luke J Harmon
- University of Idaho, Dept. of Biological Sciences, Moscow, ID
| | | | | | | | - Christopher Martin
- University of California Berkeley, Integrative Biology and Museum of Vertebrate Zoology, Berkeley, CA
| | | | - Austin H Patton
- Washington State University, School of Biological Sciences, Pullman, WA
| | - Karin S Pfennig
- University of North Carolina at Chapel Hill, Department of Biology, Chapel Hill, NC
| | - Daniel Rubinoff
- University of Hawaiʻi at Manoa, Department of Plant and Environmental Protection Sciences, Honolulu, HI
| | | | - Ole Seehausen
- Institute of Ecology & Evolution, University of Bern, Bern, BE, Switzerland
- Center for Ecology, Evolution & Biogeochemistry, Eawag, Kastanienbaum, LU, Switzerland
| | - Kerry L Shaw
- Cornell University, Neurobiology and Behavior, Tower Road,, Ithaca, NY
| | - Elizabeth Stacy
- University of Nevada Las Vegas, School of Life Sciences, Las Vegas, NV
| | - Martin Stervander
- University of Oregon, Institute of Ecology and Evolution, Eugene, OR
| | - James T Stroud
- Washington University in Saint Louis, Biology, Saint Louis, MO
| | | | - Guinevere O U Wogan
- University of California Berkeley, Environmental Science Policy, and Management, Berkeley, CA
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