Blindsnake evolutionary tree reveals long history on Gondwana
Identifieur interne : 007000 ( Main/Exploration ); précédent : 006F99; suivant : 007001Blindsnake evolutionary tree reveals long history on Gondwana
Auteurs : Nicolas Vidal [France] ; Julie Marin [France] ; Marina Morini [France] ; Steve Donnellan [Australie] ; William R. Branch [Afrique du Sud] ; Richard Thomas [États-Unis] ; Miguel Vences [Allemagne] ; Addison Wynn [États-Unis] ; Corinne Cruaud [France] ; S. Blair Hedges [États-Unis]Source :
- Biology Letters [ 1744-9561 ] ; 2010.
Abstract
Worm-like snakes (scolecophidians) are small, burrowing species with reduced vision. Although largely neglected in vertebrate research, knowledge of their biogeographical history is crucial for evaluating hypotheses of snake origins. We constructed a molecular dataset for scolecophidians with detailed sampling within the largest family, Typhlopidae (blindsnakes). Our results demonstrate that scolecophidians have had a long Gondwanan history, and that their initial diversification followed a vicariant event: the separation of East and West Gondwana approximately 150 Ma. We find that the earliest blindsnake lineages, representing two new families described here, were distributed on the palaeolandmass of India+Madagascar named here as Indigascar. Their later evolution out of Indigascar involved vicariance and several oceanic dispersal events, including a westward transatlantic one, unexpected for burrowing animals. The exceptional diversification of scolecophidians in the Cenozoic was probably linked to a parallel radiation of prey (ants and termites) as well as increased isolation of populations facilitated by their fossorial habits.
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DOI: 10.1098/rsbl.2010.0220
PubMed: 20356885
PubMed Central: 2936224
Affiliations:
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Blair Hedges</name><affiliation wicri:level="1"><nlm:aff id="af9"><addr-line>Department of Biology, 208 Mueller Lab</addr-line>,<institution>Pennsylvania State University, University Park</institution>,<addr-line>PA 16802-5301</addr-line>,<country>USA</country></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">20356885</idno><idno type="pmc">2936224</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2936224</idno><idno type="RBID">PMC:2936224</idno><idno type="doi">10.1098/rsbl.2010.0220</idno><date when="2010">2010</date><idno type="wicri:Area/Pmc/Corpus">001775</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001775</idno><idno type="wicri:Area/Pmc/Curation">001635</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">001635</idno><idno type="wicri:Area/Pmc/Checkpoint">002640</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">002640</idno><idno type="wicri:Area/Ncbi/Merge">000758</idno><idno type="wicri:Area/Ncbi/Curation">000758</idno><idno type="wicri:Area/Ncbi/Checkpoint">000758</idno><idno type="wicri:doubleKey">1744-9561:2010:Vidal N:blindsnake:evolutionary:tree</idno><idno type="wicri:Area/Main/Merge">007527</idno><idno type="wicri:Area/Main/Curation">007000</idno><idno type="wicri:Area/Main/Exploration">007000</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Blindsnake evolutionary tree reveals long history on Gondwana</title><author><name sortKey="Vidal, Nicolas" sort="Vidal, Nicolas" uniqKey="Vidal N" first="Nicolas" last="Vidal">Nicolas Vidal</name><affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>Département Systématique et Evolution</addr-line>,<institution>UMR 7138, C.P. 26, Muséum National d'Histoire Naturelle</institution>,<addr-line>57 rue Cuvier, F-75231 Paris cedex 05</addr-line>,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Marin, Julie" sort="Marin, Julie" uniqKey="Marin J" first="Julie" last="Marin">Julie Marin</name><affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>Département Systématique et Evolution</addr-line>,<institution>UMR 7138, C.P. 26, Muséum National d'Histoire Naturelle</institution>,<addr-line>57 rue Cuvier, F-75231 Paris cedex 05</addr-line>,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Morini, Marina" sort="Morini, Marina" uniqKey="Morini M" first="Marina" last="Morini">Marina Morini</name><affiliation wicri:level="1"><nlm:aff id="af1"><addr-line>Département Systématique et Evolution</addr-line>,<institution>UMR 7138, C.P. 26, Muséum National d'Histoire Naturelle</institution>,<addr-line>57 rue Cuvier, F-75231 Paris cedex 05</addr-line>,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Donnellan, Steve" sort="Donnellan, Steve" uniqKey="Donnellan S" first="Steve" last="Donnellan">Steve Donnellan</name><affiliation wicri:level="1"><nlm:aff id="af2"><addr-line>South Australian Museum, North Terrace, Adelaide 5000</addr-line>,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="af3"><addr-line>Australian Centre for Evolutionary Biology and Biodiversity</addr-line>,<institution>University of Adelaide 5005</institution>,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Branch, William R" sort="Branch, William R" uniqKey="Branch W" first="William R." last="Branch">William R. Branch</name><affiliation wicri:level="1"><nlm:aff id="af4"><institution>Bayworld</institution>,<addr-line>PO Box 13147, Humewood 6013</addr-line>,<country>South Africa</country></nlm:aff><country xml:lang="fr">Afrique du Sud</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Thomas, Richard" sort="Thomas, Richard" uniqKey="Thomas R" first="Richard" last="Thomas">Richard Thomas</name><affiliation wicri:level="1"><nlm:aff id="af5"><addr-line>Department of Biology</addr-line>,<institution>University of Puerto Rico</institution>,<addr-line>San Juan, Puerto Rico 00931-3360</addr-line>,<country>USA</country></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Vences, Miguel" sort="Vences, Miguel" uniqKey="Vences M" first="Miguel" last="Vences">Miguel Vences</name><affiliation wicri:level="1"><nlm:aff id="af6"><institution>Zoological Institute, Technical University of Braunschweig</institution>,<addr-line>Spielmannstr. 8, 38106 Braunschweig</addr-line>,<country>Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Wynn, Addison" sort="Wynn, Addison" uniqKey="Wynn A" first="Addison" last="Wynn">Addison Wynn</name><affiliation wicri:level="1"><nlm:aff id="af7"><addr-line>Department of Vertebrate Zoology</addr-line>,<institution>National Museum of Natural History, Smithsonian Institution</institution>,<addr-line>Washington, DC 20560-0162</addr-line>,<country>USA</country></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Cruaud, Corinne" sort="Cruaud, Corinne" uniqKey="Cruaud C" first="Corinne" last="Cruaud">Corinne Cruaud</name><affiliation wicri:level="1"><nlm:aff id="af8"><institution>Centre National de Séquençage, Genoscope</institution>,<addr-line>2 rue Gaston-Crémieux, CP5706, 91057 Evry cedex</addr-line>,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Hedges, S Blair" sort="Hedges, S Blair" uniqKey="Hedges S" first="S. Blair" last="Hedges">S. Blair Hedges</name><affiliation wicri:level="1"><nlm:aff id="af9"><addr-line>Department of Biology, 208 Mueller Lab</addr-line>,<institution>Pennsylvania State University, University Park</institution>,<addr-line>PA 16802-5301</addr-line>,<country>USA</country></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Biology Letters</title><idno type="ISSN">1744-9561</idno><idno type="eISSN">1744-957X</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Worm-like snakes (scolecophidians) are small, burrowing species with reduced vision. Although largely neglected in vertebrate research, knowledge of their biogeographical history is crucial for evaluating hypotheses of snake origins. We constructed a molecular dataset for scolecophidians with detailed sampling within the largest family, Typhlopidae (blindsnakes). Our results demonstrate that scolecophidians have had a long Gondwanan history, and that their initial diversification followed a vicariant event: the separation of East and West Gondwana approximately 150 Ma. We find that the earliest blindsnake lineages, representing two new families described here, were distributed on the palaeolandmass of India+Madagascar named here as Indigascar. Their later evolution out of Indigascar involved vicariance and several oceanic dispersal events, including a westward transatlantic one, unexpected for burrowing animals. The exceptional diversification of scolecophidians in the Cenozoic was probably linked to a parallel radiation of prey (ants and termites) as well as increased isolation of populations facilitated by their fossorial habits.</p></div></front></TEI><affiliations><list><country><li>Afrique du Sud</li><li>Allemagne</li><li>Australie</li><li>France</li><li>États-Unis</li></country></list><tree><country name="France"><noRegion><name sortKey="Vidal, Nicolas" sort="Vidal, Nicolas" uniqKey="Vidal N" first="Nicolas" last="Vidal">Nicolas Vidal</name></noRegion><name sortKey="Cruaud, Corinne" sort="Cruaud, Corinne" uniqKey="Cruaud C" first="Corinne" last="Cruaud">Corinne Cruaud</name><name sortKey="Marin, Julie" sort="Marin, Julie" uniqKey="Marin J" first="Julie" last="Marin">Julie Marin</name><name sortKey="Morini, Marina" sort="Morini, Marina" uniqKey="Morini M" first="Marina" last="Morini">Marina Morini</name></country><country name="Australie"><noRegion><name sortKey="Donnellan, Steve" sort="Donnellan, Steve" uniqKey="Donnellan S" first="Steve" last="Donnellan">Steve Donnellan</name></noRegion><name sortKey="Donnellan, Steve" sort="Donnellan, Steve" uniqKey="Donnellan S" first="Steve" last="Donnellan">Steve Donnellan</name></country><country name="Afrique du Sud"><noRegion><name sortKey="Branch, William R" sort="Branch, William R" uniqKey="Branch W" first="William R." last="Branch">William R. Branch</name></noRegion></country><country name="États-Unis"><noRegion><name sortKey="Thomas, Richard" sort="Thomas, Richard" uniqKey="Thomas R" first="Richard" last="Thomas">Richard Thomas</name></noRegion><name sortKey="Hedges, S Blair" sort="Hedges, S Blair" uniqKey="Hedges S" first="S. Blair" last="Hedges">S. Blair Hedges</name><name sortKey="Wynn, Addison" sort="Wynn, Addison" uniqKey="Wynn A" first="Addison" last="Wynn">Addison Wynn</name></country><country name="Allemagne"><noRegion><name sortKey="Vences, Miguel" sort="Vences, Miguel" uniqKey="Vences M" first="Miguel" last="Vences">Miguel Vences</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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