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Rull V. Taxon Cycles in Neotropical Mangroves. PLANTS (BASEL, SWITZERLAND) 2023; 12:244. [PMID: 36678956 PMCID: PMC9864432 DOI: 10.3390/plants12020244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
The concept of the taxon cycle involves successive range expansions and contractions over time, through which a species can indefinitely maintain its core distribution. Otherwise, it becomes extinct. Taxon cycles have been defined mostly for tropical island faunas; examples from continental areas are scarce, and similar case studies for plants remain unknown. Most taxon cycles have been identified on the basis of phylogeographic studies, and straightforward empirical evidence from fossils is lacking. Here, empirical fossil evidence is provided for the recurrent Eocene to the present expansion/contraction cycles in a mangrove taxon (Pelliciera) after a Neotropical-wide study of the available pollen records. This recurrent behavior is compatible with the concept of the taxon cycle from biogeographical, chronological and ecological perspectives. The biotic and abiotic drivers potentially involved in the initiation and maintenance of the Pelliciera expansion/contraction cycles are analyzed, and the ecological and evolutionary implications are discussed. Whether this could be a trend toward extinction is considered under the predictions of the taxon cycle theory. The recurrent expansion and contraction cycles identified for Pelliciera have strong potential for being the first empirically and unequivocally documented taxon cycles and likely the only taxon cycles documented to date for plants.
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Affiliation(s)
- Valentí Rull
- Botanic Institute of Barcelona, Spanish National Research Council (CSIC), Pg. del Migdia s/n, 08038 Barcelona, Spain
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2
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Iketani G, Pimentel L, Torres EDS, Rêgo PSD, Sampaio I. Mitochondrial heteroplasmy and pseudogenes in the freshwater prawn, Macrobrachium amazonicum (Heller, 1862): DNA barcoding and phylogeographic implications. Mitochondrial DNA A DNA Mapp Seq Anal 2020; 32:1-11. [PMID: 33164622 DOI: 10.1080/24701394.2020.1844677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The mitochondrial cytochrome oxidase c subunit 1 (COI) gene has been widely used in phylogenetic studies of crustaceans and analyses in population genetics. As COI studies have become more popular, there has been an increase in the number of reports of the presence of nuclear insertions of mitochondrial DNA (Numts) and mitochondrial heteroplasmy. Here, we provide evidence of both types of event in the COI sequences of Macrobrachium amazonicum, an economically important freshwater prawn, which is widespread in South America. Heteroplasmy and Numts were confirmed by different methods of DNA extraction (genomic, mitochondrial, and nuclear-enriched DNA), cloning, and sequencing, and were observed in 11 of the 14 populations sampled, primarily in the Amazon region. We discuss how the occurrence of these events affects the interpretation of the genetic relationships among the M. amazonicum populations, and we recommend caution when using COI for genetic inferences in prawns of the genus Macrobrachium, and in particular that any analysis should include nuclear markers.
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Affiliation(s)
- Gabriel Iketani
- Laboratório de Educação e Evolução Prof. Horacio Schneider, Instituto de Ciências da Educação, Universidade Federal do Oeste do Pará, Santarém, Brasil
| | - Luciana Pimentel
- Laboratório de Educação e Evolução Prof. Horacio Schneider, Instituto de Ciências da Educação, Universidade Federal do Oeste do Pará, Santarém, Brasil
| | - Ezequias Dos Santos Torres
- Laboratório de Educação e Evolução Prof. Horacio Schneider, Instituto de Ciências da Educação, Universidade Federal do Oeste do Pará, Santarém, Brasil
| | - Péricles Sena do Rêgo
- Laboratório de Genética e Conservação, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, Brasil.,CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Vairão, Portugal
| | - Iracilda Sampaio
- Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, Brasil
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3
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Liu C, Sarnat EM, Friedman NR, Hita Garcia F, Darwell C, Booher D, Kubota Y, Mikheyev AS, Economo EP. Colonize, radiate, decline: Unraveling the dynamics of island community assembly with Fijian trap-jaw ants. Evolution 2020; 74:1082-1097. [PMID: 32342495 PMCID: PMC7384189 DOI: 10.1111/evo.13983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 04/09/2020] [Indexed: 01/17/2023]
Abstract
The study of island community assembly has been fertile ground for developing and testing theoretical ideas in ecology and evolution. The ecoevolutionary trajectory of lineages after colonization has been a particular interest, as this is a key component of understanding community assembly. In this system, existing ideas, such as the taxon cycle, posit that lineages pass through a regular sequence of ecoevolutionary changes after colonization, with lineages shifting toward reduced dispersal ability, increased ecological specialization, and declines in abundance. However, these predictions have historically been difficult to test. Here, we integrate phylogenomics, population genomics, and X-ray microtomography/3D morphometrics, to test hypotheses for whether the ecomorphological diversity of trap-jaw ants (Strumigenys) in the Fijian archipelago is assembled primarily through colonization or postcolonization radiation, and whether species show ecological shifts toward niche specialization, toward upland habitats, and decline in abundance after colonization. We infer that most Fijian endemic Strumigenys evolved in situ from a single colonization and have diversified to fill a large fraction of global morphospace occupied by the genus. Within this adaptive radiation, lineages trend to different degrees toward high elevation, reduced dispersal ability, and demographic decline, and we find no evidence of repeated colonization that displaces the initial radiation. Overall these results are only partially consistent with taxon cycle and associated ideas, while highlighting the potential role of priority effects in assembling island communities.
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Affiliation(s)
- Cong Liu
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Eli M. Sarnat
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Antwork Consulting LLCDavisCalifornia95616
| | - Nicholas R. Friedman
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Francisco Hita Garcia
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Clive Darwell
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
| | - Douglas Booher
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Field Museum of Natural HistoryChicagoIllinois60605
- Department of entomologyUniversity of IllinoisUrbanaIllinois61801
- Georgia Museum of Natural HistoryAthensGeorgia30602
| | - Yasuhiro Kubota
- Faculty of ScienceUniversity of the RyukyusNishiharaOkinawaJapan
| | - Alexander S. Mikheyev
- Ecology and Evolution UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
- Evolutionary Genomics Research GroupAustralian National UniversityCanberraAustralia
| | - Evan P. Economo
- Biodiversity and Biocomplexity UnitOkinawa Institute of Science and Technology Graduate University, OnnaOkinawa904‐0495Japan
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4
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Matos-Maraví P, Matzke NJ, Larabee FJ, Clouse RM, Wheeler WC, Sorger DM, Suarez AV, Janda M. Taxon cycle predictions supported by model-based inference in Indo-Pacific trap-jaw ants (Hymenoptera: Formicidae: Odontomachus). Mol Ecol 2018; 27:4090-4107. [PMID: 30106242 DOI: 10.1111/mec.14835] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/01/2018] [Accepted: 08/07/2018] [Indexed: 01/05/2023]
Abstract
Nonequilibrium dynamics and non-neutral processes, such as trait-dependent dispersal, are often missing from quantitative island biogeography models despite their potential explanatory value. One of the most influential nonequilibrium models is the taxon cycle, but it has been difficult to test its validity as a general biogeographical framework. Here, we test predictions of the taxon cycle model using six expected phylogenetic patterns and a time-calibrated phylogeny of Indo-Pacific Odontomachus (Hymenoptera: Formicidae: Ponerinae), one of the ant genera that E.O. Wilson used when first proposing the hypothesis. We used model-based inference and a newly developed trait-dependent dispersal model to jointly estimate ancestral biogeography, ecology (habitat preferences for forest interiors, vs. "marginal" habitats, such as savannahs, shorelines, disturbed areas) and the linkage between ecology and dispersal rates. We found strong evidence that habitat shifts from forest interior to open and disturbed habitats increased macroevolutionary dispersal rate. In addition, lineages occupying open and disturbed habitats can give rise to both island endemics re-occupying only forest interiors and taxa that re-expand geographical ranges. The phylogenetic predictions outlined in this study can be used in future work to evaluate the relative weights of neutral (e.g., geographical distance and area) and non-neutral (e.g., trait-dependent dispersal) processes in historical biogeography and community ecology.
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Affiliation(s)
- Pável Matos-Maraví
- Institute of Entomology, Biology Centre CAS, Ceske Budejovice, Czech Republic.,Department of Zoology, Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic.,Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden.,Gothenburg Global Biodiversity Centre, Göteborg, Sweden
| | - Nicholas J Matzke
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia.,School of Biological Sciences, The University of Auckland, Auckland, New Zealand
| | - Fredrick J Larabee
- Department of Entomology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia.,Department of Entomology and Department of Animal Biology, University of Illinois, Urbana-Champaign, Urbana, Illinois
| | - Ronald M Clouse
- Division of Invertebrate Zoology, American Museum of Natural History, New York City, New York
| | - Ward C Wheeler
- Division of Invertebrate Zoology, American Museum of Natural History, New York City, New York
| | - Daniela Magdalena Sorger
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina.,W.M. Keck Center for Behavioral Biology, North Carolina State University, Raleigh, North Carolina.,Research & Collections, North Carolina Museum of Natural Sciences, Raleigh, North Carolina
| | - Andrew V Suarez
- Department of Entomology and Department of Animal Biology, University of Illinois, Urbana-Champaign, Urbana, Illinois
| | - Milan Janda
- Institute of Entomology, Biology Centre CAS, Ceske Budejovice, Czech Republic.,Laboratorio Nacional de Análisis y Síntesis Ecológica, ENES, UNAM, Morelia, Mexico
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5
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Dawkins KL, Furse JM, Wild CH, Hughes JM. A novel genus and cryptic species harboured within the monotypic freshwater crayfish genus Tenuibranchiurus Riek, 1951 (Decapoda: Parastacidae). PeerJ 2017; 5:e3310. [PMID: 28560095 PMCID: PMC5445942 DOI: 10.7717/peerj.3310] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/13/2017] [Indexed: 11/20/2022] Open
Abstract
Identifying species groups is an important yet difficult task, with there being no single accepted definition as to what constitutes a species, nor a set of criteria by which they should be delineated. Employing the General Lineage Concept somewhat circumvents these issues, as this concept allows multiple concordant lines of evidence to be used as support for species delimitation, where a species is defined as any independently evolving lineage. Genetically diverse groups have previously been identified within the monotypic parastacid genus Tenuibranchiurus Riek, 1951, but no further investigation of this diversity has previously been undertaken. Analysis of two mitochondrial DNA gene regions has previously identified two highly divergent groups within this taxon, representing populations from Queensland (Qld) and New South Wales (NSW), respectively. Additional testing within this study of both mitochondrial and nuclear DNA through species discovery analyses identified genetically diverse groups within these regions, which were further supported by lineage validation methods. The degree of genetic differentiation between Qld and NSW populations supports the recognition of two genera; with Qld retaining the original genus name Tenuibranchiurus, and NSW designated as Gen. nov. until a formal description is completed. Concordance between the species discovery and lineage validation methods supports the presence of six species within Tenuibranchiurus and two within Gen. nov. The recognition of additional species removes the monotypy of the genus, and the methods used can improve species identification within groups of organisms with taxonomic problems and cryptic diversity.
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Affiliation(s)
- Kathryn L Dawkins
- Australian Rivers Institute, Griffith University, Gold Coast, Queensland, Australia
| | - James M Furse
- Environmental Futures Research Institute, Griffith University, Gold Coast, Queensland, Australia.,Miyazaki International College, Miyazaki, Japan
| | - Clyde H Wild
- Environmental Futures Research Institute, Griffith University, Gold Coast, Queensland, Australia
| | - Jane M Hughes
- Australian Rivers Institute, Griffith University, Nathan, Queensland, Australia
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6
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Alda F, Gagne RB, Walter RP, Hogan JD, Moody KN, Zink F, McIntyre PB, Gilliam JF, Blum MJ. Colonization and demographic expansion of freshwater fauna across the Hawaiian archipelago. J Evol Biol 2016; 29:2054-2069. [DOI: 10.1111/jeb.12929] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 06/05/2016] [Accepted: 06/28/2016] [Indexed: 12/25/2022]
Affiliation(s)
- F. Alda
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
| | - R. B. Gagne
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
| | - R. P. Walter
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Department of Biological Science; California State University, Fullerton; Fullerton CA USA
| | - J. D. Hogan
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Department of Life Sciences; Texas A & M University - Corpus Christi; Corpus Christi TX USA
| | - K. N. Moody
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
- Department of Biological Sciences; Clemson University; Clemson SC USA
| | - F. Zink
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
| | - P. B. McIntyre
- Center for Limnology; University of Wisconsin-Madison; Madison WI USA
| | - J. F. Gilliam
- Department of Biological Sciences; North Carolina State University; Raleigh NC USA
| | - M. J. Blum
- Department of Ecology and Evolutionary Biology; Tulane University; New Orleans LA USA
- Tulane-Xavier Center for Bioenvironmental Research; Tulane University; New Orleans LA USA
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7
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Economo EP, Sarnat EM, Janda M, Clouse R, Klimov PB, Fischer G, Blanchard BD, Ramirez LN, Andersen AN, Berman M, Guénard B, Lucky A, Rabeling C, Wilson EO, Knowles LL. Breaking out of biogeographical modules: range expansion and taxon cycles in the hyperdiverse ant genus Pheidole. JOURNAL OF BIOGEOGRAPHY 2015; 42:2289-2301. [PMID: 27660394 PMCID: PMC5014176 DOI: 10.1111/jbi.12592] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
AIM We sought to reconstruct the biogeographical structure and dynamics of a hyperdiverse ant genus, Pheidole, and to test several predictions of the taxon cycle hypothesis. Using large datasets on Pheidole geographical distributions and phylogeny, we (1) inferred patterns of biogeographical modularity (clusters of areas with similar faunal composition), (2) tested whether species in open habitats are more likely to be expanding their range beyond module boundaries, and (3) tested whether there is a bias of lineage flow from high- to low-diversity areas. LOCATION The Old World. METHODS We compiled and jointly analysed a comprehensive database of Pheidole geographical distributions, the ecological affinities of different species, and a multilocus phylogeny of the Old World radiation. We used network modularity methods to infer biogeographical structure in the genus and comparative methods to evaluate the hypotheses. RESULTS The network analysis identified eight biogeographical modules, and a suite of species with anomalous ranges that are statistically more likely to occur in open habitat, supporting the hypothesis that open habitats promote range expansion. Phylogenetic analysis shows evidence for a cascade pattern of colonization from Asia to New Guinea to the Pacific, but no 'upstream' colonization in the reverse direction. MAIN CONCLUSIONS The distributions of Pheidole lineages in the Old World are highly modular, with modules generally corresponding to biogeographical regions inferred in other groups of organisms. However, some lineages have expanded their ranges across module boundaries, and these species are more likely to be adapted to open habitats rather than interior forest. In addition, there is a cascade pattern of dispersal from higher to lower diversity areas during these range expansions. Our findings are consistent with the taxon cycle hypothesis, although they do not rule out alternative interpretations.
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Affiliation(s)
- Evan P. Economo
- Okinawa Institute of Science and Technology Graduate University1919‐1 TanchaOnna‐sonOkinawa904‐0495Japan
- Department of Ecology & Evolutionary BiologyMuseum of ZoologyUniversity of MichiganAnn ArborMIUSA
| | - Eli M. Sarnat
- Department of EntomologyUniversity of Illinois at Urbana‐ChampaignChicagoILUSA
| | - Milan Janda
- Biology CentreCzech Academy of SciencesČeské BudějoviceCzech Republic
- Department of BiologyUniversity of GuanajuatoGuanajuatoMexico
| | - Ronald Clouse
- Department of Bioinformatics and GenomicsUniversity of North Carolina at CharlotteCharlotteNCUSA
| | - Pavel B. Klimov
- Department of Ecology & Evolutionary BiologyMuseum of ZoologyUniversity of MichiganAnn ArborMIUSA
- Department of ZoologyTyumen State UniversityTyumenRussia
| | - Georg Fischer
- Okinawa Institute of Science and Technology Graduate University1919‐1 TanchaOnna‐sonOkinawa904‐0495Japan
| | - Benjamin D. Blanchard
- Department of Ecology & Evolutionary BiologyMuseum of ZoologyUniversity of MichiganAnn ArborMIUSA
- Committee on Evolutionary BiologyUniversity of ChicagoChicagoILUSA
| | - Lizette N. Ramirez
- Department of Ecology & Evolutionary BiologyMuseum of ZoologyUniversity of MichiganAnn ArborMIUSA
| | | | - Maia Berman
- CSIRO Land & Water FlagshipDarwinNTAustralia
| | - Benoit Guénard
- Okinawa Institute of Science and Technology Graduate University1919‐1 TanchaOnna‐sonOkinawa904‐0495Japan
| | - Andrea Lucky
- Department of Entomology & NematologyUniversity of FloridaGainesvilleFLUSA
| | | | | | - L. Lacey Knowles
- Department of Ecology & Evolutionary BiologyMuseum of ZoologyUniversity of MichiganAnn ArborMIUSA
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Abstract
AbstractFor crab larvae, swimming behaviors coupled with the movement of tides suggests that larvae can normally move upstream within estuaries by avoiding ebb tides and actively swimming during flood tides (i.e., flood-tide transport [FTT]). Recently, a 1-D transport model incorporating larval behavior predicted that opposing forces of river discharge and tidal amplitude in the Pee Dee River/Winyah Bay system of South Carolina, USA, could limit dispersal within a single estuary for downstream transport as well as become a dispersal barrier to recruitment of late stage larvae to the freshwater adult habitats of Uca minax (LeConte 1855). We sequenced 394-bp of the mitochondrial cytochrome apoenzyme b for 226 adult U. minax, from four locales along a 49-km stretch of the Pee Dee River/Winyah Bay estuary, above and below the boundary of salt intrusion. Results of an analysis of molecular variance (AMOVA) and an exact test of population differentiation showed a small, but statistically significant (α=0.05) population subdivision among adults of the 4 subpopulations, as well as all subpopulations being significantly differentiated (α=0.05). This pattern fitted with model predictions, which implies that larval transport within the tidally influenced river system is limited.
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9
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Taillebois L, Castelin M, Ovenden JR, Bonillo C, Keith P. Contrasting genetic structure among populations of two amphidromous fish species (Sicydiinae) in the Central West Pacific. PLoS One 2013; 8:e75465. [PMID: 24130714 PMCID: PMC3794023 DOI: 10.1371/journal.pone.0075465] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 08/15/2013] [Indexed: 11/18/2022] Open
Abstract
Both present-day and past processes can shape connectivity of populations. Pleistocene vicariant events and dispersal have shaped the present distribution and connectivity patterns of aquatic species in the Indo-Pacific region. In particular, the processes that have shaped distribution of amphidromous goby species still remain unknown. Previous studies show that phylogeographic breaks are observed between populations in the Indian and Pacific Oceans where the shallow Sunda shelf constituted a geographical barrier to dispersal, or that the large spans of open ocean that isolate the Hawaiian or Polynesian Islands are also barriers for amphidromous species even though they have great dispersal capacity. Here we assess past and present genetic structure of populations of two amphidromous fish (gobies of the Sicydiinae) that are widely distributed in the Central West Pacific and which have similar pelagic larval durations. We analysed sections of mitochondrial COI, Cytb and nuclear Rhodospine genes in individuals sampled from different locations across their entire known range. Similar to other Sicydiinae fish, intraspecific mtDNA genetic diversity was high for all species (haplotype diversity between 0.9–0.96). Spatial analyses of genetic variation in Sicyopus zosterophorum demonstrated strong isolation across the Torres Strait, which was a geologically intermittent land barrier linking Australia to Papua New Guinea. There was a clear genetic break between the northwestern and the southwestern clusters in Si. zosterophorum (φST = 0.67502 for COI) and coalescent analyses revealed that the two populations split at 306 Kyr BP (95% HPD 79–625 Kyr BP), which is consistent with a Pleistocene separation caused by the Torres Strait barrier. However, this geographical barrier did not seem to affect Sm. fehlmanni. Historical and demographic hypotheses are raised to explain the different patterns of population structure and distribution between these species. Strategies aiming to conserve amphidromous fish should consider the presence of cryptic evolutionary lineages to prevent stock depletion.
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Affiliation(s)
- Laura Taillebois
- Milieux et Peuplements Aquatiques - UMR 7208 (MNHN, CNRS, IRD, UPMC), Muséum national d'Histoire naturelle, Paris, France ; Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, Northern Territory, Australia
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10
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Page TJ, Torati LS, Cook BD, Binderup A, Pringle CM, Reuschel S, Schubart CD, Hughes JM. Invertébrés Sans Frontières: Large Scales of Connectivity of Selected Freshwater Species among Caribbean Islands. Biotropica 2012. [DOI: 10.1111/j.1744-7429.2012.00900.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Timothy J. Page
- Australian Rivers Institute; Griffith University; Nathan; Queensland; 4111; Australia
| | - Lucas S. Torati
- EMBRAPA Fisheries and Aquaculture; 103 Sul. AV. J K ACSO 01, Conjunto 01, Lote 17 1° piso. CEP 77015012; Palmas; TO; Brazil
| | | | - Andrew Binderup
- Odum School of Ecology; University of Georgia; Athens; GA; 30602-2602; U.S.A
| | | | | | | | - Jane M. Hughes
- Australian Rivers Institute; Griffith University; Nathan; Queensland; 4111; Australia
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11
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Economo EP, Sarnat EM. Revisiting the Ants of Melanesia and the Taxon Cycle: Historical and Human-Mediated Invasions of a Tropical Archipelago. Am Nat 2012; 180:E1-16. [DOI: 10.1086/665996] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Thuesen PA, Ebner BC, Larson H, Keith P, Silcock RM, Prince J, Russell DJ. Amphidromy links a newly documented fish community of continental Australian streams, to oceanic islands of the west Pacific. PLoS One 2011; 6:e26685. [PMID: 22039530 PMCID: PMC3198781 DOI: 10.1371/journal.pone.0026685] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 10/02/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Indo-Pacific high island streams experience extreme hydrological variation, and are characterised by freshwater fish species with an amphidromous life history. Amphidromy is a likely adaptation for colonisation of island streams following stochastic events that lead to local extirpation. In the Wet Tropics of north-eastern Australia, steep coastal mountain streams share similar physical characteristics to island systems. These streams are poorly surveyed, but may provide suitable habitat for amphidromous species. However, due to their ephemeral nature, common non-diadromous freshwater species of continental Australia are unlikely to persist. Consequently, we hypothesise that coastal Wet Tropics streams are faunally more similar, to distant Pacific island communities, than to nearby faunas of large continental rivers. METHODS/PRINCIPAL FINDINGS Surveys of coastal Wet Tropics streams recorded 26 species, 10 of which are first records for Australia, with three species undescribed. This fish community is unique in an Australian context in that it contains mostly amphidromous species, including sicydiine gobies of the genera Sicyopterus, Sicyopus, Smilosicyopus and Stiphodon. Species presence/absence data of coastal Wet Tropics streams were compared to both Wet Tropics river networks and Pacific island faunas. ANOSIM indicated the fish fauna of north-eastern Australian coastal streams were more similar to distant Pacific islands (R = 0.76), than to nearby continental rivers (R = 0.98). MAIN CONCLUSIONS/SIGNIFICANCE Coastal Wet Tropics streams are faunally more similar to distant Pacific islands (79% of species shared), than to nearby continental fauna due to two factors. First, coastal Wet Tropics streams lack many non-diadromous freshwater fish which are common in nearby large rivers. Second, many amphidromous species found in coastal Wet Tropics streams and Indo-Pacific islands remain absent from large rivers of the Wet Tropics. The evolutionary and conservation significance of this newly discovered Australian fauna requires clarification in the context of the wider amphidromous fish community of the Pacific.
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Affiliation(s)
- Paul A Thuesen
- School of Marine and Tropical Biology, James Cook University, Cairns, Queensland, Australia.
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13
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Jaramillo-Correa JP, Grivet D, Terrab A, Kurt Y, De-Lucas AI, Wahid N, Vendramin GG, González-Martínez SC. The Strait of Gibraltar as a major biogeographic barrier in Mediterranean conifers: a comparative phylogeographic survey. Mol Ecol 2010; 19:5452-68. [PMID: 21073588 DOI: 10.1111/j.1365-294x.2010.04912.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The Strait of Gibraltar (SG) is reputed for being both a bridge and a geographic barrier to biological exchanges between Europe and Africa. Major genetic breaks associated with this strait have been identified in various taxa, but it is unknown whether these disjunctions have been produced simultaneously or by independent biogeographic processes. Here, the genetic structure of five conifers distributed on both sides of the SG was investigated using mitochondrial (nad1 b/c, nad5-1, nad5-4 and nad7-1) and chloroplast (Pt1254, Pt15169, Pt30204, Pt36480, Pt71936 and Pt87268) DNA markers. The distribution of genetic variation was partially congruent between types of markers within the same species. Across taxa, there was a significant overlapping between the SG and the genetic breaks detected, especially for the four Tertiary species surveyed (Abies pinsapo complex, Pinus nigra, Pinus pinaster and Taxus baccata). For most of these taxa, the divergence of populations across the SG could date back to long before the Pleistocene glaciations. However, their strongly different cpDNA G(ST) and R(ST) values point out that they have had dissimilar population histories, which might include contrasting amounts of pollen-driven gene flow since their initial establishment in the region. The fifth species, Pinus halepensis, was genetically depauperated and homogenous on both sides of the SG. A further analysis of nuclear DNA sequences with coalescent-based isolation with migration models suggests a Pleistocene divergence of P. halepensis populations across the SG, which is in sharp contrast with the pre-Pleistocene divergence dates obtained for P. pinaster. Altogether, these results indicate that the genetic breaks observed across this putative biogeographical barrier have been produced by independent evolutionary processes related to the biological history of each individual species instead of a common vicariant phenomenon.
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Affiliation(s)
- J P Jaramillo-Correa
- Departamento de Ecología y Genética, Centro de Investigación Forestal, CIFOR-INIA, Madrid, Spain
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Crandall ED, Taffel JR, Barber PH. High gene flow due to pelagic larval dispersal among South Pacific archipelagos in two amphidromous gastropods (Neritomorpha: Neritidae). Heredity (Edinb) 2009; 104:563-72. [PMID: 19844268 DOI: 10.1038/hdy.2009.138] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The freshwater stream fauna of tropical oceanic islands is dominated by amphidromous species, whose larvae are transported to the ocean and develop in the plankton before recruiting back to freshwater habitat as juveniles. Because stream habitat is relatively scarce and unstable on oceanic islands, this life history would seem to favor either the retention of larvae to their natal streams, or the ability to delay metamorphosis until new habitat is encountered. To distinguish between these hypotheses, we used population genetic methods to estimate larval dispersal among five South Pacific archipelagos in two amphidromous species of Neritid gastropod (Neritina canalis and Neripteron dilatatus). Sequence data from mitochondrial cytochrome oxidase I (COI) revealed that neither species is genetically structured throughout the Western Pacific, suggesting that their larvae have a pelagic larval duration (PLD) of at least 8 weeks, longer than many marine species. In addition, the two species have recently colonized isolated Central Pacific archipelagos in three independent events. Since colonization, there has been little or no gene flow between the Western and Central Pacific archipelagos in N. canalis, and high levels of gene flow across the same region in N. dilatatus. Both species show departures from neutrality and recent dates for colonization of the Central Pacific archipelagos, which is consistent with frequent extinction and recolonization of stream populations in this area. Similar results from other amphidromous species suggest that unstable freshwater habitats promote long-distance dispersal capabilities.
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Affiliation(s)
- E D Crandall
- Department of Biology, Boston University Marine Program, Boston, MA, USA.
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Cook BD, Bernays S, Pringle CM, Hughes JM. Marine dispersal determines the genetic population structure of migratory stream fauna of Puerto Rico: evidence for island-scale population recovery processes. ACTA ACUST UNITED AC 2009. [DOI: 10.1899/09-008.1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Benjamin D. Cook
- Australian Rivers Institute, Griffith University, Nathan, Queensland, Australia 4111
| | - Sofie Bernays
- Australian Rivers Institute, Griffith University, Nathan, Queensland, Australia 4111
| | | | - Jane M. Hughes
- Australian Rivers Institute, Griffith University, Nathan, Queensland, Australia 4111
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Wowor D, Muthu V, Meier R, Balke M, Cai Y, Ng PKL. Evolution of life history traits in Asian freshwater prawns of the genus Macrobrachium (Crustacea: Decapoda: Palaemonidae) based on multilocus molecular phylogenetic analysis. Mol Phylogenet Evol 2009; 52:340-50. [PMID: 19489122 DOI: 10.1016/j.ympev.2009.01.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Freshwater prawns of the genus Macrobrachium are free-living decapod crustaceans that are commonly encountered in tropical streams and lakes. We present a molecular phylogenetic analysis of the diverse Southeast and East Asian fauna based on >3 kb sequence data from three nuclear and two mitochondrial markers for almost 50% of the described fauna. We reconstruct the phylogenetic relationships and track the evolution of key life history traits. Our tree suggests that the last common ancestor of the Asian Macrobrachium laid numerous small eggs and had prolonged larval development ("PLD") in saline coastal waters after which the adults matured in freshwater habitats. We also argue for five independent losses of the marine larval phase to yield five clades of species that develop entirely in freshwater and have fewer and larger eggs than the species with PLD. These species have either semi-abbreviated (two origins) with at least one free-swimming stage or abbreviated larval development ("ALD": three origins) which lack free-swimming larvae. A Shimodaira-Hasegawa test rejects all trees that would imply a single loss of the marine larval phase, but alternative and equally parsimonious optimizations exist that imply a smaller number of losses. However, these scenarios would require the re-acquisition of free-swimming larvae. A concentrated-change test supports Pereira and Garcia's [Pereira, G.A., Garcia, J.V., 1995. Larval development of Macrobrachium reyesi Pereira (Decapoda, Palaemonidae), with a discussion on the origin of abbreviated development in palaemonids. J. Crust. Biol. 15, 117-133] hypothesis of a significant correlation between living in freshwater and the origin of semi-abbreviated and abbreviated larval development. Our phylogenetic tree also reveals that Asian Macrobrachium have independently become cavernicolous at least twice, and invaded the highly acidic waters of freshwater and peat swamps two or three times.
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Affiliation(s)
- Daisy Wowor
- Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Jalan Raya Jakarta Bogor Km 46, Cibinong 16911, Indonesia
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Page TJ, Humphreys WF, Hughes JM. Shrimps down under: evolutionary relationships of subterranean crustaceans from Western Australia (Decapoda: Atyidae: Stygiocaris). PLoS One 2008; 3:e1618. [PMID: 18286175 PMCID: PMC2229661 DOI: 10.1371/journal.pone.0001618] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2007] [Accepted: 01/18/2008] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND We investigated the large and small scale evolutionary relationships of the endemic Western Australian subterranean shrimp genus Stygiocaris (Atyidae) using nuclear and mitochondrial genes. Stygiocaris is part of the unique cave biota of the coastal, anchialine, limestones of the Cape Range and Barrow Island, most of whose nearest evolutionary relations are found in coastal caves of the distant North Atlantic. The dominance of atyids in tropical waters and their food resources suggest they are pivotal in understanding these groundwater ecosystems. METHODOLOGY/PRINCIPLE FINDINGS Our nuclear and mitochondrial analyses all recovered the Mexican cave genus Typhlatya as the sister taxon of Stygiocaris, rather than any of the numerous surface and cave atyids from Australia or the Indo-Pacific region. The two described Stygiocaris species were recovered as monophyletic, and a third, cryptic, species was discovered at a single site, which has very different physiochemical properties from the sites hosting the two described species. CONCLUSIONS/SIGNIFICANCE Our findings suggest that Stygiocaris and Typhlatya may descend from a common ancestor that lived in the coastal marine habitat of the ancient Tethys Sea, and were subsequently separated by plate tectonic movements. This vicariant process is commonly thought to explain the many disjunct anchialine faunas, but has rarely been demonstrated using phylogenetic techniques. The Cape Range's geological dynamism, which is probably responsible for the speciation of the various Stygiocaris species, has also led to geographic population structure within species. In particular, Stygiocaris lancifera is split into northern and southern groups, which correspond to population splits within other sympatric subterranean taxa.
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Affiliation(s)
- Timothy J Page
- Australian Rivers Institute, Griffith University, Nathan, Queensland, Australia.
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