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Reid K, Carlos Garza J, Gephard SR, Caccone A, Post DM, Palkovacs EP. Restoration-mediated secondary contact leads to introgression of alewife ecotypes separated by a colonial-era dam. Evol Appl 2020; 13:652-664. [PMID: 32211058 PMCID: PMC7086056 DOI: 10.1111/eva.12890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/30/2019] [Accepted: 10/02/2019] [Indexed: 12/20/2022] Open
Abstract
Secondary contact may have important implications for ecological and evolutionary processes; however, few studies have tracked the outcomes of secondary contact from its onset in natural ecosystems. We evaluated an anadromous alewife (Alosa pseudoharengus ) reintroduction project in Rogers Lake (Connecticut, USA), which contains a landlocked alewife population that was isolated as a result of colonial-era damming. After access to the ocean was restored, adult anadromous alewife were stocked into the lake. We assessed anadromous juvenile production, the magnitude and direction of introgression, and the potential for competition between ecotypes. We obtained fin clips from all adult alewife stocked into the lake during the restoration and a sample of juveniles produced in the lake two years after the stocking began. We assessed the ancestry of juveniles using categorical assignment and pedigree reconstruction with newly developed microhaplotype genetic markers. Anadromous alewives successfully spawned in the lake and hybridized with the landlocked population. Parentage assignments revealed that male and female anadromous fish contributed equally to juvenile F1 hybrids. The presence of landlocked backcrosses shows that some hybrids were produced within the first two years of secondary contact, matured in the lake, and reproduced. Therefore, introgression appears directional, from anadromous into landlocked, in the lake environment. Differences in estimated abundance of juveniles of different ecotypes in different habitats were also detected, which may reduce competition between ecotypes as the restoration continues. Our results illustrate the utility of restoration projects to study the outcomes of secondary contact in real ecosystems.
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Affiliation(s)
- Kerry Reid
- Department of Ecology and Evolutionary BiologyUniversity of CaliforniaSanta CruzCAUSA
- Southwest Fisheries Science CenterNational Marine Fisheries ServiceSanta CruzCAUSA
| | - John Carlos Garza
- Southwest Fisheries Science CenterNational Marine Fisheries ServiceSanta CruzCAUSA
- Department of Ocean SciencesUniversity of CaliforniaSanta CruzCAUSA
| | - Steven R. Gephard
- Fisheries DivisionConnecticut Department of Energy and Environmental ProtectionOld LymeCTUSA
| | - Adalgisa Caccone
- Department of Ecology and Evolutionary BiologyYale UniversityNew HavenCTUSA
| | - David M. Post
- Department of Ecology and Evolutionary BiologyYale UniversityNew HavenCTUSA
| | - Eric P. Palkovacs
- Department of Ecology and Evolutionary BiologyUniversity of CaliforniaSanta CruzCAUSA
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2
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Billerman SM, Cicero C, Bowie RCK, Carling MD. Phenotypic and genetic introgression across a moving woodpecker hybrid zone. Mol Ecol 2019; 28:1692-1708. [DOI: 10.1111/mec.15043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/22/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Shawn M. Billerman
- Department of Zoology and Physiology University of Wyoming Laramie Wyoming
- Program in Ecology University of Wyoming Laramie Wyoming
| | - Carla Cicero
- Museum of Vertebrate Zoology University of California Berkeley California
| | - Rauri C. K. Bowie
- Museum of Vertebrate Zoology University of California Berkeley California
- Department of Integrative Biology University of California Berkeley California
| | - Matthew D. Carling
- Department of Zoology and Physiology University of Wyoming Laramie Wyoming
- Program in Ecology University of Wyoming Laramie Wyoming
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3
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Yamaguchi R, Yamanaka T, Liebhold AM. Consequences of hybridization during invasion on establishment success. THEOR ECOL-NETH 2019. [DOI: 10.1007/s12080-019-0415-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Changes in the distribution of Michigan crayfishes and the influence of invasive rusty crayfish (Faxonius rusticus) on native crayfish substrate associations. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1852-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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5
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Littrell KA, Ellis D, Gephard SR, MacDonald AD, Palkovacs EP, Scranton K, Post DM. Evaluating the potential for prezygotic isolation and hybridization between landlocked and anadromous alewife ( Alosa pseudoharengus) following secondary contact. Evol Appl 2018; 11:1554-1566. [PMID: 30344627 PMCID: PMC6183454 DOI: 10.1111/eva.12645] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/09/2018] [Accepted: 04/14/2018] [Indexed: 12/24/2022] Open
Abstract
The recent increase in river restoration projects is altering habitat connectivity for many aquatic species, increasing the chance that previously isolated populations will come into secondary contact. Anadromous and landlocked alewife (Alosa pseudoharengus) are currently undergoing secondary contact as a result of a fishway installation at Rogers Lake in Old Lyme, Connecticut. To determine the degree of prezygotic isolation and potential for hybridization between alewife life history forms, we constructed spawning time distributions for two anadromous and three landlocked alewife populations using otolith-derived age estimates. In addition, we analyzed long-term data from anadromous alewife migratory spawning runs to look for trends in arrival date and spawning time. Our results indicated that anadromous alewife spawned earlier and over a shorter duration than landlocked alewife, but 3%-13% of landlocked alewife spawning overlapped with the anadromous alewife spawning period. The degree of spawning time overlap was primarily driven by annual and population-level variation in the timing of spawning by landlocked alewife, whereas the timing and duration of spawning for anadromous alewife were found to be relatively invariant among years in our study system. For alewife and many other anadromous fish species, the increase in fish passage river restoration projects in the coming decades will re-establish habitat connectivity and may bring isolated populations into contact. Hybridization between life history forms may occur when prezygotic isolating mechanisms are minimal, leading to potentially rapid ecological and evolutionary changes in restored habitats.
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Affiliation(s)
| | - David Ellis
- Fisheries DivisionConnecticut Department of Energy and Environmental ProtectionOld LymeConnecticut
| | - Stephen R. Gephard
- Fisheries DivisionConnecticut Department of Energy and Environmental ProtectionOld LymeConnecticut
| | - Andrew D. MacDonald
- Department of Ecology and Evolutionary BiologyYale UniversityNew HavenConnecticut
| | - Eric P. Palkovacs
- Long Marine LaboratoryUniversity of California Santa CruzSanta CruzCalifornia
| | | | - David M. Post
- Department of Ecology and Evolutionary BiologyYale UniversityNew HavenConnecticut
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6
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Introgressive replacement of natives by invading Arion pest slugs. Sci Rep 2017; 7:14908. [PMID: 29097725 PMCID: PMC5668256 DOI: 10.1038/s41598-017-14619-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 10/09/2017] [Indexed: 11/09/2022] Open
Abstract
Hybridization with invasive species is one of the major threats to the phenotypic and genetic persistence of native organisms worldwide. Arion vulgaris (syn. lusitanicus) is a major agricultural pest slug that successfully invaded many European countries in recent decades, but its impact on closely related native species remains unclear. Here, we hypothesized that the regional decline of native A. rufus is connected with the spread of invasive A. vulgaris, and tested whether this can be linked to hybridization between the two species by analyzing 625 Arion sp. along altitudinal transects in three regions in Switzerland. In each region, we observed clear evidence of different degrees of genetic admixture, suggesting recurrent hybridization beyond the first generation. We found spatial differences in admixture patterns that might reflect distinct invasion histories among the regions. Our analyses provide a landscape level perspective for the genetic interactions between invasive and native animals during the invasion. We predict that without specific management action, A. vulgaris will further expand its range, which might lead to local extinction of A. rufus and other native slugs in the near future. Similar processes are likely occurring in other regions currently invaded by A. vulgaris.
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7
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Tominaga A, Matsui M, Yoshikawa N, Eto K, Nishikawa K. Genomic Displacement and Shift of the Hybrid Zone in the Japanese Fire-Bellied Newt. J Hered 2017; 109:232-242. [DOI: 10.1093/jhered/esx085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 09/29/2017] [Indexed: 12/25/2022] Open
Affiliation(s)
- Atsushi Tominaga
- Department of Natural Sciences, Faculty of Education, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Masafumi Matsui
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu, Sakyo, Kyoto, Japan
| | - Natsuhiko Yoshikawa
- Center for Molecular Biodiversity Research, National Museum of Nature and Science, Tsukuba, Ibaraki, Japan
| | - Koshiro Eto
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu, Sakyo, Kyoto, Japan
- Kitakyushu Museum of Natural History and Human History, Higashida, Yahatahigashiku, Kitakyushu, Fukuoka, Japan
| | - Kanto Nishikawa
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu, Sakyo, Kyoto, Japan
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Girdner SF, Ray AM, Buktenica MW, Hering DK, Mack JA, Umek JW. Replacement of a unique population of newts (Taricha granulosa mazamae) by introduced signal crayfish (Pacifastacus leniusculus) in Crater Lake, Oregon. Biol Invasions 2017. [DOI: 10.1007/s10530-017-1570-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Kuhlmann ML. Invasion-Related Change in Crayfish Density Affects a Stream Macroinvertebrate Community. Northeast Nat (Steuben) 2016. [DOI: 10.1656/045.023.0402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Matthews WJ, Turner TF, Osborne MJ. Breakdown of a Hybrid Swarm between Two Darters (Percidae),Etheostoma radiosumandEtheostoma spectabile,with Loss of One Parental Species. COPEIA 2016. [DOI: 10.1643/ce-16-409] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Cutter AD, Gray JC. Ephemeral ecological speciation and the latitudinal biodiversity gradient. Evolution 2016; 70:2171-2185. [PMID: 27502055 DOI: 10.1111/evo.13030] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 07/29/2016] [Indexed: 01/17/2023]
Abstract
The richness of biodiversity in the tropics compared to high-latitude parts of the world forms one of the most globally conspicuous patterns in biology, and yet few hypotheses aim to explain this phenomenon in terms of explicit microevolutionary mechanisms of speciation and extinction. We link population genetic processes of selection and adaptation to speciation and extinction by way of their interaction with environmental factors to drive global scale macroecological patterns. High-latitude regions are both cradle and grave with respect to species diversification. In particular, we point to a conceptual equivalence of "environmental harshness" and "hard selection" as eco-evolutionary drivers of local adaptation and ecological speciation. By describing how ecological speciation likely occurs more readily at high latitudes, with such nascent species especially prone to extinction by fusion, we derive the ephemeral ecological speciation hypothesis as an integrative mechanistic explanation for latitudinal gradients in species turnover and the net accumulation of biodiversity.
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Affiliation(s)
- Asher D Cutter
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada.
| | - Jeremy C Gray
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada
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12
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Rangel J, Giresi M, Pinto MA, Baum KA, Rubink WL, Coulson RN, Johnston JS. Africanization of a feral honey bee (Apis mellifera) population in South Texas: does a decade make a difference? Ecol Evol 2016; 6:2158-69. [PMID: 27069571 PMCID: PMC4782243 DOI: 10.1002/ece3.1974] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/18/2015] [Accepted: 01/03/2016] [Indexed: 11/18/2022] Open
Abstract
The arrival to the United States of the Africanized honey bee, a hybrid between European subspecies and the African subspecies Apis mellifera scutellata, is a remarkable model for the study of biological invasions. This immigration has created an opportunity to study the dynamics of secondary contact of honey bee subspecies from African and European lineages in a feral population in South Texas. An 11‐year survey of this population (1991–2001) showed that mitochondrial haplotype frequencies changed drastically over time from a resident population of eastern and western European maternal ancestry, to a population dominated by the African haplotype. A subsequent study of the nuclear genome showed that the Africanization process included bidirectional gene flow between European and Africanized honey bees, giving rise to a new panmictic mixture of A. m. scutellata‐ and European‐derived genes. In this study, we examined gene flow patterns in the same population 23 years after the first hybridization event occurred. We found 28 active colonies inhabiting 92 tree cavities surveyed in a 5.14 km2 area, resulting in a colony density of 5.4 colonies/km2. Of these 28 colonies, 25 were of A. m. scutellata maternal ancestry, and three were of western European maternal ancestry. No colonies of eastern European maternal ancestry were detected, although they were present in the earlier samples. Nuclear DNA revealed little change in the introgression of A. m. scutellata‐derived genes into the population compared to previous surveys. Our results suggest this feral population remains an admixed swarm with continued low levels of European ancestry and a greater presence of African‐derived mitochondrial genetic composition.
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Affiliation(s)
- Juliana Rangel
- Department of Entomology Texas A&M University 2475 TAMU College Station Texas 77843-2475
| | - Melissa Giresi
- Department of Biology Texas A&M University 3258 TAMU College Station Texas 77843-3258
| | - Maria Alice Pinto
- Mountain Research Centre (CIMO) Polytechnic Institute of Bragança Campus de Sta. Apolónia Apartado 1172 Bragança 5301-855 Portugal
| | - Kristen A Baum
- Department of Zoology Oklahoma State University 501 Life Sciences West Stillwater Oklahoma 74078
| | | | - Robert N Coulson
- Knowledge Engineering Laboratory Department of Entomology Texas A&M University College Station Texas 77843-2475
| | - John Spencer Johnston
- Department of Entomology Texas A&M University 2475 TAMU College Station Texas 77843-2475
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13
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Dougherty MM, Larson ER, Renshaw MA, Gantz CA, Egan SP, Erickson DM, Lodge DM. Environmental DNA (eDNA) detects the invasive rusty crayfish Orconectes rusticus at low abundances. J Appl Ecol 2016; 53:722-732. [PMID: 27773942 PMCID: PMC5053277 DOI: 10.1111/1365-2664.12621] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/02/2016] [Indexed: 11/27/2022]
Abstract
Early detection is invaluable for the cost‐effective control and eradication of invasive species, yet many traditional sampling techniques are ineffective at the low population abundances found at the onset of the invasion process. Environmental DNA (eDNA) is a promising and sensitive tool for early detection of some invasive species, but its efficacy has not yet been evaluated for many taxonomic groups and habitat types. We evaluated the ability of eDNA to detect the invasive rusty crayfish Orconectes rusticus and to reflect patterns of its relative abundance, in upper Midwest, USA, inland lakes. We paired conventional baited trapping as a measure of crayfish relative abundance with water samples for eDNA, which were analysed in the laboratory with a qPCR assay. We modelled detection probability for O. rusticus eDNA using relative abundance and site characteristics as covariates and also tested the relationship between eDNA copy number and O. rusticus relative abundance. We detected O. rusticus eDNA in all lakes where this species was collected by trapping, down to low relative abundances, as well as in two lakes where trap catch was zero. Detection probability of O. rusticus eDNA was well predicted by relative abundance of this species and lake water clarity. However, there was poor correspondence between eDNA copy number and O. rusticus relative abundance estimated by trap catches. Synthesis and applications. Our study demonstrates a field and laboratory protocol for eDNA monitoring of crayfish invasions, with results of statistical models that provide guidance of sampling effort and detection probabilities for researchers in other regions and systems. We propose eDNA be included as a tool in surveillance for invasive or imperilled crayfishes and other benthic arthropods.
Our study demonstrates a field and laboratory protocol for eDNA monitoring of crayfish invasions, with results of statistical models that provide guidance of sampling effort and detection probabilities for researchers in other regions and systems. We propose eDNA be included as a tool in surveillance for invasive or imperilled crayfishes and other benthic arthropods.
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Affiliation(s)
- Matthew M Dougherty
- Department of Biological Sciences University of Notre Dame Notre Dame IN 46556 USA; Catholic Theological Union Chicago IL 60615 USA
| | - Eric R Larson
- Daniel P. Haerther Center for Conservation and Research John G. Shedd Aquarium Chicago IL 60605 USA; Environmental Change Initiative University of Notre Dame South Bend IN 46617 USA; Department of Natural Resources and Environmental Sciences University of Illinois Urbana IL 61801 USA
| | - Mark A Renshaw
- Department of Biological Sciences University of Notre Dame Notre Dame IN 46556 USA
| | - Crysta A Gantz
- Department of Biological Sciences University of Notre Dame Notre Dame IN 46556 USA
| | - Scott P Egan
- Department of BioSciences Rice University Houston TX 77251 USA
| | - Daniel M Erickson
- Department of Biological Sciences University of Notre Dame Notre Dame IN 46556 USA
| | - David M Lodge
- Department of Biological Sciences University of Notre Dame Notre Dame IN 46556 USA; Environmental Change Initiative University of Notre Dame South Bend IN 46617 USA
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14
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Vogt G, Falckenhayn C, Schrimpf A, Schmid K, Hanna K, Panteleit J, Helm M, Schulz R, Lyko F. The marbled crayfish as a paradigm for saltational speciation by autopolyploidy and parthenogenesis in animals. Biol Open 2015; 4:1583-94. [PMID: 26519519 PMCID: PMC4728364 DOI: 10.1242/bio.014241] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 10/05/2015] [Indexed: 12/31/2022] Open
Abstract
The parthenogenetic all-female marbled crayfish is a novel research model and potent invader of freshwater ecosystems. It is a triploid descendant of the sexually reproducing slough crayfish, Procambarus fallax, but its taxonomic status has remained unsettled. By cross-breeding experiments and parentage analysis we show here that marbled crayfish and P. fallax are reproductively separated. Both crayfish copulate readily, suggesting that the reproductive barrier is set at the cytogenetic rather than the behavioural level. Analysis of complete mitochondrial genomes of marbled crayfish from laboratory lineages and wild populations demonstrates genetic identity and indicates a single origin. Flow cytometric comparison of DNA contents of haemocytes and analysis of nuclear microsatellite loci confirm triploidy and suggest autopolyploidisation as its cause. Global DNA methylation is significantly reduced in marbled crayfish implying the involvement of molecular epigenetic mechanisms in its origination. Morphologically, both crayfish are very similar but growth and fecundity are considerably larger in marbled crayfish, making it a different animal with superior fitness. These data and the high probability of a divergent future evolution of the marbled crayfish and P. fallax clusters suggest that marbled crayfish should be considered as an independent asexual species. Our findings also establish the P. fallax-marbled crayfish pair as a novel paradigm for rare chromosomal speciation by autopolyploidy and parthenogenesis in animals and for saltational evolution in general.
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Affiliation(s)
- Günter Vogt
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Cassandra Falckenhayn
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Anne Schrimpf
- Institute for Environmental Sciences, University of Koblenz-Landau, Forststrasse 7, 76829 Landau, Germany
| | - Katharina Schmid
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz, Staudingerweg 5, 55128 Mainz, Germany
| | - Katharina Hanna
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Jörn Panteleit
- Institute for Environmental Sciences, University of Koblenz-Landau, Forststrasse 7, 76829 Landau, Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz, Staudingerweg 5, 55128 Mainz, Germany
| | - Ralf Schulz
- Institute for Environmental Sciences, University of Koblenz-Landau, Forststrasse 7, 76829 Landau, Germany
| | - Frank Lyko
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
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15
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Arcella T, Hood GR, Powell THQ, Sim SB, Yee WL, Schwarz D, Egan SP, Goughnour RB, Smith JJ, Feder JL. Hybridization and the spread of the apple maggot fly, Rhagoletis pomonella (Diptera: Tephritidae), in the northwestern United States. Evol Appl 2015; 8:834-46. [PMID: 26366200 PMCID: PMC4561572 DOI: 10.1111/eva.12298] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 07/08/2015] [Indexed: 12/31/2022] Open
Abstract
Hybridization may be an important process interjecting variation into insect populations enabling host plant shifts and the origin of new economic pests. Here, we examine whether hybridization between the native snowberry-infesting fruit fly Rhagoletis zephyria (Snow) and the introduced quarantine pest R. pomonella (Walsh) is occurring and may aid the spread of the latter into more arid commercial apple-growing regions of central Washington state, USA. Results for 19 microsatellites implied hybridization occurring at a rate of 1.44% per generation between the species. However, there was no evidence for increased hybridization in central Washington. Allele frequencies for seven microsatellites in R. pomonella were more 'R. zephyria-like' in central Washington, suggesting that genes conferring resistance to desiccation may be adaptively introgressing from R. zephyria. However, in only one case was the putatively introgressing allele from R. zephyria not found in R. pomonella in the eastern USA. Thus, many of the alleles changing in frequency may have been prestanding in the introduced R. pomonella population. The dynamics of hybridization are therefore complex and nuanced for R. pomonella, with various causes and factors, including introgression for a portion, but not all of the genome, potentially contributing to the pest insect's spread.
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Affiliation(s)
- Tracy Arcella
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA
| | - Glen R Hood
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA
| | - Thomas H Q Powell
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA
| | - Sheina B Sim
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA
| | - Wee L Yee
- USDA-ARS, Yakima Agricultural Research Laboratory Wapato, WA, USA
| | - Dietmar Schwarz
- Department of Biology, Western Washington University Bellingham, WA, USA
| | - Scott P Egan
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA ; Advanced Diagnostics and Therapeutics, University of Notre Dame Notre Dame, IN, USA
| | | | - James J Smith
- Departments of Entomology & Lyman Briggs College, Michigan State University E. Lansing, MI, USA
| | - Jeffrey L Feder
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA ; Advanced Diagnostics and Therapeutics, University of Notre Dame Notre Dame, IN, USA ; Environmental Change Initiative, University of Notre Dame Notre Dame, IN, USA
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17
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Sargent LW, Lodge DM. Evolution of invasive traits in nonindigenous species: increased survival and faster growth in invasive populations of rusty crayfish (Orconectes rusticus). Evol Appl 2014; 7:949-61. [PMID: 25469173 PMCID: PMC4211724 DOI: 10.1111/eva.12198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 07/07/2014] [Indexed: 11/28/2022] Open
Abstract
The importance of evolution in enhancing the invasiveness of species is not well understood, especially in animals. To evaluate evolution in crayfish invasions, we tested for differences in growth rate, survival, and response to predators between native and invaded range populations of rusty crayfish (Orconectes rusticus). We hypothesized that low conspecific densities during introductions into lakes would select for increased investment in growth and reproduction in invasive populations. We reared crayfish from both ranges in common garden experiments in lakes and mesocosms, the latter in which we also included treatments of predatory fish presence and food quality. In both lake and mesocosm experiments, O. rusticus from invasive populations had significantly faster growth rates and higher survival than individuals from the native range, especially in mesocosms where fish were present. There was no influence of within-range collection location on growth rate. Egg size was similar between ranges and did not affect crayfish growth. Our results, therefore, suggest that growth rate, which previous work has shown contributes to strong community-level impacts of this invasive species, has diverged since O. rusticus was introduced to the invaded range. This result highlights the need to consider evolutionary dynamics in invasive species mitigation strategies.
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Affiliation(s)
- Lindsey W Sargent
- Department of Biological Sciences, University of Notre Dame Notre Dame, IN, USA
| | - David M Lodge
- Department of Biological Sciences and Environmental Change Initiative, University of Notre Dame Notre Dame, IN, USA
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18
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Coleman RR, Gaither MR, Kimokeo B, Stanton FG, Bowen BW, Toonen RJ. Large-scale introduction of the Indo-Pacific damselfishAbudefduf vaigiensisinto Hawai'i promotes genetic swamping of the endemic congenerA. abdominalis. Mol Ecol 2014; 23:5552-65. [DOI: 10.1111/mec.12952] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 09/29/2014] [Accepted: 09/30/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Richard R. Coleman
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
- Department of Biology; University of Hawai'i; Mānoa, 2450 Campus Road, Dean Hall Room 2 Honolulu HI 96822 USA
| | - Michelle R. Gaither
- Section of Ichthyology; California Academy of Sciences; 55 Music Concourse Drive San Francisco CA 94118 USA
- School of Biological and Biomedical Sciences; Durham University; South Road Durham DH1 3LE UK
| | - Bethany Kimokeo
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
| | - Frank G. Stanton
- University of Hawai'i Community Colleges; Leeward Community College; 96-045 Ala Ike Pearl City HI 96782 USA
| | - Brian W. Bowen
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
| | - Robert J. Toonen
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
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19
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Dobler R, Rogell B, Budar F, Dowling DK. A meta-analysis of the strength and nature of cytoplasmic genetic effects. J Evol Biol 2014; 27:2021-34. [DOI: 10.1111/jeb.12468] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/25/2014] [Accepted: 07/27/2014] [Indexed: 01/07/2023]
Affiliation(s)
- R. Dobler
- Institute of Evolution and Ecology; University of Tübingen; Tübingen Germany
| | - B. Rogell
- School of Biological Sciences; Monash University; Clayton Vic. Australia
| | - F. Budar
- UMR 1318; Institut Jean-Pierre Bourgin; INRA; Versailles France
- UMR 1318; Institut Jean-Pierre Bourgin; AgroParisTech; Versailles France
| | - D. K. Dowling
- School of Biological Sciences; Monash University; Clayton Vic. Australia
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20
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Smith KL, Hale JM, Gay L, Kearney M, Austin JJ, Parris KM, Melville J. SPATIO-TEMPORAL CHANGES IN THE STRUCTURE OF AN AUSTRALIAN FROG HYBRID ZONE: A 40-YEAR PERSPECTIVE. Evolution 2013; 67:3442-54. [DOI: 10.1111/evo.12140] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 03/24/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Katie L. Smith
- Sciences Department; Museum Victoria; Melbourne VIC 3001 Australia
- Department of Zoology; University of Melbourne; VIC 3010 Australia
- Department of Botany; University of Melbourne; VIC 3010 Australia
| | - Joshua M. Hale
- Sciences Department; Museum Victoria; Melbourne VIC 3001 Australia
- Department of Zoology; University of Melbourne; VIC 3010 Australia
- Department of Botany; University of Melbourne; VIC 3010 Australia
| | - Laurène Gay
- Diversity and Adaptation of Mediterranean Species; UMR AGAP 1334, 2 place Pierre Viala; 34060 Montpellier France
| | - Michael Kearney
- Department of Zoology; University of Melbourne; VIC 3010 Australia
| | - Jeremy J. Austin
- Sciences Department; Museum Victoria; Melbourne VIC 3001 Australia
- Australian Centre for Ancient DNA, School of Earth and Environmental Sciences; University of Adelaide, North Terrace; Adelaide SA 5005 Australia
| | | | - Jane Melville
- Sciences Department; Museum Victoria; Melbourne VIC 3001 Australia
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21
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Habitat, predation, and coexistence between invasive and native crayfishes: prioritizing lakes for invasion prevention. Biol Invasions 2013. [DOI: 10.1007/s10530-013-0468-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Laboratory Competition Hierarchies between Potentially Invasive Rusty Crayfish (Orconectes rusticus) and Native Crayfishes of Conservation Concern. AMERICAN MIDLAND NATURALIST 2013. [DOI: 10.1674/0003-0031-169.2.345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Genetic exchange between two freshwater apple snails, Pomacea canaliculata and Pomacea maculata invading East and Southeast Asia. Biol Invasions 2013. [DOI: 10.1007/s10530-013-0431-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Dresser C, Swanson B. Preemptive legislation inhibits the anthropogenic spread of an aquatic invasive species, the rusty crayfish (Orconectes rusticus). Biol Invasions 2012. [DOI: 10.1007/s10530-012-0349-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Pedraza-Lara C, Doadrio I, Breinholt JW, Crandall KA. Phylogeny and evolutionary patterns in the Dwarf crayfish subfamily (Decapoda: Cambarellinae). PLoS One 2012; 7:e48233. [PMID: 23155379 PMCID: PMC3498282 DOI: 10.1371/journal.pone.0048233] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Accepted: 09/27/2012] [Indexed: 11/18/2022] Open
Abstract
The Dwarf crayfish or Cambarellinae, is a morphologically singular subfamily of decapod crustaceans that contains only one genus, Cambarellus. Its intriguing distribution, along the river basins of the Gulf Coast of United States (Gulf Group) and into Central México (Mexican Group), has until now lacked of satisfactory explanation. This study provides a comprehensive sampling of most of the extant species of Cambarellus and sheds light on its evolutionary history, systematics and biogeography. We tested the impact of Gulf Group versus Mexican Group geography on rates of cladogenesis using a maximum likelihood framework, testing different models of birth/extinction of lineages. We propose a comprehensive phylogenetic hypothesis for the subfamily based on mitochondrial and nuclear loci (3,833 bp) using Bayesian and Maximum Likelihood methods. The phylogenetic structure found two phylogenetic groups associated to the two main geographic components (Gulf Group and Mexican Group) and is partially consistent with the historical structure of river basins. The previous hypothesis, which divided the genus into three subgenera based on genitalia morphology was only partially supported (P = 0.047), resulting in a paraphyletic subgenus Pandicambarus. We found at least two cases in which phylogenetic structure failed to recover monophyly of recognized species while detecting several cases of cryptic diversity, corresponding to lineages not assigned to any described species. Cladogenetic patterns in the entire subfamily are better explained by an allopatric model of speciation. Diversification analyses showed similar cladogenesis patterns between both groups and did not significantly differ from the constant rate models. While cladogenesis in the Gulf Group is coincident in time with changes in the sea levels, in the Mexican Group, cladogenesis is congruent with the formation of the Trans-Mexican Volcanic Belt. Our results show how similar allopatric divergence in freshwater organisms can be promoted through diverse vicariant factors.
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Affiliation(s)
- Carlos Pedraza-Lara
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.
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26
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Affiliation(s)
- David P L Toews
- Department of Zoology and Biodiversity Research Centre, University of British Columbia, 6270 University Blvd., Vancouver, BC V6T 1Z4, Canada.
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27
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Barber BR, Xu J, Pérez-Losada M, Jara CG, Crandall KA. Conflicting evolutionary patterns due to mitochondrial introgression and multilocus phylogeography of the Patagonian freshwater crab Aegla neuquensis. PLoS One 2012; 7:e37105. [PMID: 22685541 PMCID: PMC3369872 DOI: 10.1371/journal.pone.0037105] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 04/17/2012] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Multiple loci and population genetic methods were employed to study the phylogeographic history of the Patagonian freshwater crab Aegla neuquensis (Aeglidae: Decopoda). This taxon occurs in two large river systems in the Patagonian Steppe, from the foothills of the Andes Mountains east to the Atlantic Ocean. METHODOLOGY/PRINCIPAL FINDINGS A nuclear phylogeny and multilocus nested clade phylogeographic analysis detected a fragmentation event between the Negro and Chico-Chubut river systems. This event occurred approximately 137 thousand years ago. An isolation-with-migration analysis and maximum-likelihood estimates of gene flow showed asymmetrical exchange of genetic material between these two river systems exclusively in their headwaters. We used information theory to determine the best-fit demographic history between these two river systems under an isolation-with-migration model. The best-fit model suggests that the Negro and the ancestral populations have the same effective population sizes; whereas the Chico-Chubut population is smaller and shows that gene flow from the Chico-Chubut into the Negro is four times higher than in the reverse direction. Much of the Chico-Chubut system appears to have only been recently colonized while the Negro populations appear to have been in place for most of the evolutionary history of this taxon. CONCLUSIONS/SIGNIFICANCE Due to mitochondrial introgression, three nuclear loci provided different phylogeographic resolution than the three mitochondrial genes for an ancient fragmentation event observed in the nuclear phylogeny. However, the mitochondrial locus provided greater resolution on more recent evolutionary events. Our study, therefore, demonstrates the need to include both nuclear and mitochondrial loci for a more complete understanding of evolutionary histories and associated phylogeographic events. Our results suggest that gene flow between these systems, before and after fragmentation was through periodic paleolakes that formed in the headwaters region. Fragmentation between the Negro and Chico-Chubut systems was driven by the disappearance of these paleolakes during the Patagonian Glaciation.
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Affiliation(s)
- Brian R Barber
- Department of Biology, Brigham Young University, Provo, Utah, United States of America.
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28
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Ward JL, Blum MJ, Walters DM, Porter BA, Burkhead N, Freeman B. Discordant introgression in a rapidly expanding hybrid swarm. Evol Appl 2012; 5:380-92. [PMID: 25568058 PMCID: PMC3353357 DOI: 10.1111/j.1752-4571.2012.00249.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 12/09/2011] [Indexed: 12/01/2022] Open
Abstract
The erosion of species boundaries can involve rapid evolutionary change. Consequently, many aspects of the process remain poorly understood, including the formation, expansion, and evolution of hybrid swarms. Biological invasions involving hybridization present exceptional opportunities to study the erosion of species boundaries because timelines of interactions and outcomes are frequently well known. Here, we examined clinal variation across codominant and maternally inherited genetic markers as well as phenotypic traits to characterize the expansion and evolution of a hybrid swarm between native Cyprinella venusta and invasive Cyprinella lutrensis minnows. Discordant introgression of phenotype, microsatellite multilocus genotype, and mtDNA haplotype indicates that the observable expansion of the C. venusta × C. lutrensis hybrid swarm is a false invasion front. Both parental and hybrid individuals closely resembling C. lutrensis are numerically dominant in the expansion wake, indicating that the non-native parental phenotype may be selectively favored. These findings show that cryptic introgression can extend beyond the phenotypic boundaries of hybrid swarms and that hybrid swarms likely expand more rapidly than can be documented from phenotypic variation alone. Similarly, dominance of a single parental phenotype following an introduction event may lead to instances of species erosion being mistaken for species displacement without hybridization.
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Affiliation(s)
- Jessica L Ward
- Department of Ecology, Evolution and Behavior, University of Minnesota St. Paul, MN, USA
| | - Mike J Blum
- Department of Ecology and Evolutionary Biology, Tulane University New Orleans, LA, USA
| | - David M Walters
- U.S. Geological Survey, Fort Collins Science Center Fort Collins, CO, USA
| | - Brady A Porter
- Department of Biological Sciences, Duquesne University Pittsburgh, PA, USA
| | - Noel Burkhead
- U.S. Geological Survey, Southeast Ecological Science Center Gainesville, FL, USA
| | - Byron Freeman
- Georgia Museum of Natural History and Odum School of Ecology, University of Georgia Athens, GA, USA
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29
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Abstract
The negative effects of human-induced habitat disturbance and modification on multiple dimensions of biological diversity are well chronicled (Turner 1996; Harding et al. 1998; Lawton et al. 1998; Sakai et al. 2001). Among the more insidious consequences is secondary contact between formerly allopatric taxa (Anderson & Hubricht 1938; Perry et al. 2002; Seehausen 2006). How the secondary contact will play out is unpredictable (Ellstrand et al. 2010), but if the taxa are not fully reproductively isolated, hybridization is likely, and if the resulting progeny are fertile, the eventual outcome is often devastating from a conservation perspective (Rhymer & Simberloff 1996; Wolf et al. 2001; McDonald et al. 2008). In this issue of Molecular Ecology, Steeves et al. (2010) present an analysis of hybridization between two avian species, one of which is critically endangered and the other of which is invasive. Their discovery that the endangered species has not yet been hybridized to extinction is promising and not what one would necessarily expect from theory.
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Affiliation(s)
- Robb T Brumfield
- Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
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30
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SACKS BENJAMINN, MOORE MARCELLE, STATHAM MARKJ, WITTMER HEIKOU. A restricted hybrid zone between native and introduced red fox (Vulpes vulpes) populations suggests reproductive barriers and competitive exclusion. Mol Ecol 2010; 20:326-41. [DOI: 10.1111/j.1365-294x.2010.04943.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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31
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SENN HV, BARTON NH, GOODMAN SJ, SWANSON GM, ABERNETHY KA, PEMBERTON JM. Investigating temporal changes in hybridization and introgression in a predominantly bimodal hybridizing population of invasive sika (Cervus nippon) and native red deer (C. elaphus) on the Kintyre Peninsula, Scotland. Mol Ecol 2010; 19:910-24. [DOI: 10.1111/j.1365-294x.2009.04497.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Abstract
When introduced or cultivated plants or animals hybridize with their native relatives, the spread of invasive genes into native populations might have biological, aesthetic, and legal implications. Models suggest that the rate of displacement of native by invasive alleles can be rapid and inevitable if they are favored by natural selection. We document the spread of a few introduced genes 90 km into a threatened native species (the California Tiger Salamander) in 60 years. Meanwhile, a majority of genetic markers (65 of 68) show little evidence of spread beyond the region where introductions occurred. Using computer simulations, we found that such a pattern is unlikely to emerge by chance among selectively neutral markers. Therefore, our results imply that natural selection has favored both the movement and fixation of these exceptional invasive alleles. The legal status of introgressed populations (native populations that are slightly genetically modified) is unresolved by the US Endangered Species Act. Our results illustrate that genetic and ecological factors need to be carefully weighed when considering different criteria for protection, because different rules could result in dramatically different geographic areas and numbers of individuals being protected.
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33
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Roberts DG, Gray CA, West RJ, Ayre DJ. Marine genetic swamping: hybrids replace an obligately estuarine fish. Mol Ecol 2010; 19:508-20. [PMID: 20070520 DOI: 10.1111/j.1365-294x.2009.04501.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David G Roberts
- School of Biological Sciences, Institute for Conservation Biology and Environmental Management, University of Wollongong, Wollongong, NSW 2522, Australia.
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34
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Pitra C, Schwarz S, Fickel J. Going west—invasion genetics of the alien raccoon dog Nyctereutes procynoides in Europe. EUR J WILDLIFE RES 2009. [DOI: 10.1007/s10344-009-0283-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Duchesne P, Turgeon J. FLOCK: a method for quick mapping of admixture without source samples. Mol Ecol Resour 2009; 9:1333-44. [PMID: 21564904 DOI: 10.1111/j.1755-0998.2009.02571.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Identifying and estimating individual and/or population admixture is a very common objective in evolution and conservation biology. There are many situations where samples from one or many of the putatively hybridizing entities are not available or easily identified. Here we describe FLOCK, a new method especially designed to provide spatial and/or temporal admixture maps in the absence of one or several source samples. FLOCK is a non-Bayesian method and therefore differs substantially from previous clustering algorithms. Its working principle is repeated re-allocation of all collected specimens (total sample) to the k subsamples, each re-allocation being more effective than the previous one in attracting genetically similar individuals. This snowball effect, more formally referred to as a positive feedback mechanism, makes FLOCK an efficient and quick sorting process. The usage of FLOCK is illustrated with two empirical situations which have been thoroughly analysed previously with other approaches. A number of simulations were run to better assess the power of the FLOCK algorithm. Performance comparisons were made between the FLOCK and Structure algorithms. When non-negligible numbers of pure genotypes were present, the two performed equally well. However, FLOCK proved significantly more powerful in the absence of pure genotypes. Moreover, FLOCK showed more potential for fast processing. Run times were shown to increase linearly with size of total sample and with size of k, the number of reference samples from which admixture mapping is performed.
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Affiliation(s)
- P Duchesne
- Département de Biologie, Université Laval, Québec, QC, Canada, G1V 0A6
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36
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Roe KJ, Mayden RL, Harris PM. Systematics and Zoogeography of the Rock Basses (Centrarchidae: Ambloplites). COPEIA 2008. [DOI: 10.1643/ci-07-105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Bacigalupe LD. Biological invasions and phenotypic evolution: a quantitative genetic perspective. Biol Invasions 2008. [DOI: 10.1007/s10530-008-9411-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Reproductive disturbance of Japanese bumblebees by the introduced European bumblebee Bombus terrestris. Naturwissenschaften 2008; 96:467-75. [PMID: 19089400 DOI: 10.1007/s00114-008-0495-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 11/17/2008] [Accepted: 11/24/2008] [Indexed: 10/21/2022]
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39
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Gay L, Crochet PA, Bell DA, Lenormand T. COMPARING CLINES ON MOLECULAR AND PHENOTYPIC TRAITS IN HYBRID ZONES: A WINDOW ON TENSION ZONE MODELS. Evolution 2008; 62:2789-806. [PMID: 18752618 DOI: 10.1111/j.1558-5646.2008.00491.x] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurène Gay
- CEFE-CNRS, UMR 5175, 1919 route de Mende, F-34293 Montpellier cedex 5, France.
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40
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Pintor LM, Sih A, Bauer ML. Differences in aggression, activity and boldness between native and introduced populations of an invasive crayfish. OIKOS 2008. [DOI: 10.1111/j.1600-0706.2008.16578.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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42
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Differences in growth and foraging behavior of native and introduced populations of an invasive crayfish. Biol Invasions 2008. [DOI: 10.1007/s10530-008-9367-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Larson ER, Magoulick DD. Comparative Life History of Native (Orconectes Eupunctus) and Introduced (Orconectes Neglectus) Crayfishes in The Spring River Drainage of Arkansas and Missouri. AMERICAN MIDLAND NATURALIST 2008. [DOI: 10.1674/0003-0031(2008)160[323:clhono]2.0.co;2] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Pintor LM, Sih A, Bauer ML. Differences in aggression, activity and boldness between native and introduced populations of an invasive crayfish. OIKOS 2008. [DOI: 10.1111/j.0030-1299.2008.16578.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Mathews LM, Adams L, Anderson E, Basile M, Gottardi E, Buckholt MA. Genetic and morphological evidence for substantial hidden biodiversity in a freshwater crayfish species complex. Mol Phylogenet Evol 2008; 48:126-35. [PMID: 18346914 DOI: 10.1016/j.ympev.2008.02.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Revised: 02/05/2008] [Accepted: 02/06/2008] [Indexed: 11/15/2022]
Abstract
North America is a center of biodiversity for freshwater crayfish, with >300 described species, mostly in the family Cambaridae. However, the phylogenetic and phylogeographic relationships among these taxa are poorly understood, despite their ubiquitous occurrence in North American freshwater habitats. Here, we target the geographically widespread Orconectesvirilis and its sister taxa for genetic and morphological investigation. We used sequence data from two mitochondrial genes (16S rRNA and cytochrome oxidase I) and from one nuclear gene (glyceraldehyde-3-phosphate dehydrogenase), as well as morphological data from the male gonopod, to gain insights into phylogenetic relationships among individuals collected in the northeastern United States, where this taxon is considered to be invasive, and from Kansas. Our data reveal evidence for three cryptic species in our collections, in addition to O.virilis sensu stricto; all four clades are separated by both mitochondrial and nuclear sequence data. In addition, two of the newly discovered species, O.sp. nov. A and O.sp. nov. B, are distinguishable from O.virilis by significant differences in gonopod morphology (no data on gonopod morphology were available for O.sp. nov. C). O.sp. nov. A was collected at numerous sites in Massachusetts; additional sampling is required to determine if this species is native to New England. Two other taxa, O.sp. nov. B and O.sp. nov. C, were both collected from sites in eastern Kansas, and historically have probably been considered to be O.nais. In summary, this investigation indicates that this species complex may harbor a great deal of unknown biodiversity over the rest of its described range, and suggests that further attention to the phylogenetics and phylogeography of North American crayfishes may yield interesting insights into the evolution of biodiversity.
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Affiliation(s)
- Lauren M Mathews
- Department of Biology, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
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46
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Kuhlmann ML, Hazelton PD. Invasion of the Upper Susquehanna River Watershed by Rusty Crayfish (Orconectes rusticus). Northeast Nat (Steuben) 2007. [DOI: 10.1656/1092-6194(2007)14[507:iotusr]2.0.co;2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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47
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Dixon CJ, Schönswetter P, Schneeweiss GM. Traces of ancient range shifts in a mountain plant group (Androsace halleri complex, Primulaceae). Mol Ecol 2007; 16:3890-901. [PMID: 17850552 DOI: 10.1111/j.1365-294x.2007.03342.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Phylogeographical studies frequently detect range shifts, both expansions (including long-distance dispersal) and contractions (including vicariance), in the studied taxa. These processes are usually inferred from the patterns and distribution of genetic variation, with the potential pitfall that different historical processes may result in similar genetic patterns. Using a combination of DNA sequence data from the plastid genome, AFLP fingerprinting, and rigorous phylogenetic and coalescence-based hypothesis testing, we show that Androsace halleri (currently distributed disjunctly in the northwestern Iberian Cordillera Cantábrica, the eastern Pyrenees, and the French Massif Central and Vosges), or its ancestor, was once more widely distributed in the Pyrenees. While there, it hybridized with Androsace laggeri and Androsace pyrenaica, both of which are currently allopatric with A. halleri. The common ancestor of A. halleri and the north Iberian local endemic Androsace rioxana probably existed in the north Iberian mountain ranges with subsequent range expansion (to the French mountain ranges of the Massif Central and the Vosges) and allopatric speciation (A. rioxana, A. halleri in the eastern Pyrenees, A. halleri elsewhere). We have thus been able to use the reticulate evolution in this species group to help elucidate its phylogeographical history, including evidence of range contraction.
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Affiliation(s)
- Christopher J Dixon
- Department of Biogeography and Botanical Garden, University of Vienna, Rennweg 14, A-1030 Vienna, Austria.
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48
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Abstract
Hybrid zones are 'natural laboratories' for studying the origin, maintenance and demise of species. Theory predicts that hybrid zones can move in space and time, with significant consequences for both evolutionary and conservation biology, though such movement is often perceived as rare. Here, a review of empirical studies of moving hybrid zones in animals and plants shows 23 examples with observational evidence for movement, and a further 16 where patterns of introgression in molecular markers could be interpreted as signatures of movement. The strengths and weaknesses of methods used for detecting hybrid zone movement are discussed, including long-term replicated sampling, historical surveys, museum/herbarium collections, patterns of relictual populations and introgression of genetic markers into an advancing taxon. Factors governing hybrid zone movement are assessed in the light of the empirical studies, including environmental selection, competition, asymmetric hybridization, dominance drive, hybrid fitness, human activity and climate change. Hybrid zone movement means that untested assumptions of stability in evolutionary studies on hybrid zone can lead to mistaken conclusions. Movement also means that conservation effort aimed at protecting against introgression could unwittingly favour an invading taxon. Moving hybrid zones are of wide interest as examples of evolution in action and possible indicators of environmental change. More long-term experimental studies are needed that incorporate reciprocal transplants, hybridization experiments and surveys of molecular markers and population densities on a range of scales.
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49
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Themudo GE, Arntzen JW. Newts under siege: range expansion of
Triturus pygmaeus
isolates populations of its sister species. DIVERS DISTRIB 2007. [DOI: 10.1111/j.1472-4642.2007.00373.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- G. Espregueira Themudo
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, 4485‐661 Vairão, Portugal,
| | - J. W. Arntzen
- National Museum of Natural History, PO Box 9517, 2300 RA Leiden, the Netherlands
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50
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Abstract
AbstractOver the past decades, various free-living animals (hosts) and their parasites have invaded recipient areas in which they had not previously occurred, thus gaining the status of aliens or exotics. In general this happened to a low extent for hundreds of years. With variable frequency, invasions have been followed by the dispersal and establishment of non-indigenous species, whether host or parasite. In the literature thus far, colonizations by both hosts and parasites have not been treated and reviewed together, although both are usually interwoven in various ways. As to those factors permitting invasive success and colonization strength, various hypotheses have been put forward depending on the scientific background of respective authors and on the conspicuousness of certain invasions. Researchers who have tried to analyse characteristic developmental patterns, the speed of dispersal or the degree of genetic divergence in populations of alien species have come to different conclusions. Among parasitologists, the applied aspects of parasite invasions, such as the negative effects on economically important hosts, have long been at the centre of interest. In this contribution, invasions by hosts as well as parasites are considered comparatively, revealing many similarities and a few differences. Two helminths, the liver fluke,Fasciola hepatica,of cattle and sheep and the swimbladder nematode,Anguillicola crassus,of eels are shown to be useful as model parasites for the study of animal invasions and environmental global change. Introductions ofF. hepaticahave been associated with imports of cattle or other grazing animals. In various target areas, susceptible lymnaeid snails serving as intermediate hosts were either naturally present and/or were introduced from the donor continent of the parasite (Europe) and/or from other regions which were not within the original range of the parasite, partly reflecting progressive stages of a global biota change. In several introduced areas,F. hepaticaco-occurs with native or exotic populations of the congenericF. gigantica, with thus far unknown implications. Over the fluke's extended range, in addition to domestic stock animals, wild native or naturalized mammals can also serve as final hosts. Indigenous and displaced populations ofF. hepatica, however, have not yet been studied comparatively from an evolutionary perspective.A. crassus, from the Far East, has invaded three continents, without the previous naturalization of its natural hostAnguilla japonica, by switching to the respective indigenous eel species. Local entomostrac crustaceans serve as susceptible intermediate hosts. The novel final hosts turned out to be naive in respect to the introduced nematode with far reaching consequences for the parasite's morphology (size), abundance and pathogenicity. Comparative infection experiments with Japanese and European eels yielded many differences in the hosts' immune defence, mirroring coevolution versus an abrupt host switch associated with the introduction of the helminth. In other associations of native hosts and invasive parasites, the elevated pathogenicity of the parasite seems to result from other deficiencies such as a lack of anti-parasitic behaviour of the naïve host compared to the donor host which displays distinct behavioural patterns, keeping the abundance of the parasite low. From the small amount of available literature, it can be concluded that the adaptation of certain populations of the novel host to the alien parasite takes several decades to a century or more. Summarizing all we know about hosts and parasites as aliens, tentative patterns and principles can be figured out, but individual case studies teach us that generalizations should be avoided.
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Affiliation(s)
- H Taraschewski
- Zoologisches Institut I, Okologie-Parasitologie, Universität Karlsruhe, Kornblumenstrasse 13, 76128 Karlsruhe, Germany.
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