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<title lang=en>Population expansions dominate demographic histories of endemic and widespread Pacific reef fishes</title>
<creator>Delrieu-Trottin, Erwan</creator>
<creator>Mona, Stefano</creator>
<creator>Maynard, Jeffrey</creator>
<creator>Neglia, Valentina</creator>
<creator>Veuille, Michel</creator>
<creator>Planes, Serge</creator>
<contributor>Laboratoire d'Excellence CORAIL (LabEX CORAIL) ; Institut de Recherche pour le Développement (IRD) - Université des Antilles et de la Guyane (UAG) - École des hautes études en sciences sociales (EHESS) - École pratique des hautes études (EPHE) - Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) - Université de la Réunion (UR) - Université de la Polynésie Française (UPF) - Université de Nouvelle Calédonie - Institut d'écologie et environnement</contributor>
<contributor>Biologie Intégrative des Populations ; École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>École pratique des hautes études (EPHE)</contributor>
<contributor>Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) ; Université de Perpignan Via Domitia (UPVD) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 2045-2322</source>
<source>EISSN: 2045-2322</source>
<source>Scientific Reports</source>
<publisher>Nature Publishing Group</publisher>
<identifier>hal-01469339</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01469339</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01469339/document</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01469339/file/population%20expansions.pdf</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01469339</source>
<source>Scientific Reports, Nature Publishing Group, 2017, 7, pp.40519. 〈10.1038/srep40519〉</source>
<identifier>DOI : 10.1038/srep40519</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1038/srep40519</relation>
<language>en</language>
<subject lang=en> Population genetics</subject>
<subject lang=en>Molecular ecology</subject>
<subject>[SDV.GEN.GPO] Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]</subject>
<subject>[SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics</subject>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Despite the unique nature of endemic species, their origin and population history remain poorly studied. We investigated the population history of 28 coral reef fish species, close related, from the Gambier and Marquesas Islands, from five families, with range size varying from widespread to small-range endemic. We analyzed both mitochondrial and nuclear sequence data using neutrality test and Bayesian analysis (EBSP and ABC). We found evidence for demographic expansions for most species (24 of 28), irrespective of range size, reproduction strategy or archipelago. The timing of the expansions varied greatly among species, from 8,000 to 2,000,000 years ago. The typical hypothesis for reef fish that links population expansions to the Last Glacial Maximum fit for 14 of the 24 demographic expansions. We propose two evolutionary processes that could lead to expansions older than the LGM: (a) we are retrieving the signature of an old colonization process for widespread, large-range endemic and paleoendemic species or (b) speciation; the expansion reflects the birth of the species for neoendemic species. We show for the first time that the demographic histories of endemic and widespread reef fish are not distinctly different and suggest that a number of processes drive endemism.</description>
<date>2017</date>
</dc>
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