Vicariance and dispersal across an intermittent barrier: Population genetic structure of marine animals across the Torres Strait land bridge

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dc.citation.issue4
dc.citation.volume30
dc.contributor.authorMirams AGK
dc.contributor.authorTreml EA
dc.contributor.authorShields JL
dc.contributor.authorLiggins L
dc.contributor.authorRiginos C
dc.date.available2011-12-01
dc.date.issued2011-12-01
dc.descriptionCAUL read and publish agreement
dc.description.abstractBiogeographic barriers, some transitory in duration, are likely to have been important contributing factors to modern marine biodiversity in the Indo-Pacific region. One such barrier was the Torres Strait land bridge between continental Australia and New Guinea that persisted through much of the late Pleistocene and separated Indian and Pacific Ocean taxa. Here, we examine the patterns of mitochondrial DNA diversity for marine animals with present-day distributions spanning the Torres Strait. Specifically, we investigate whether there are concordant signatures across species, consistent with either vicariance or recent colonization from either ocean basin. We survey four species of reef fishes (Apogon doederleini, Pomacentrus coelestis, Dascyllus trimaculatus, and Acanthurus triostegus) for mtDNA cytochrome oxidase 1 and control region variation and contrast these results to previous mtDNA studies in diverse marine animals with similar distributions. We find substantial genetic partitioning (estimated from F-statistics and coalescent approaches) between Indian and Pacific Ocean populations for many species, consistent with regional persistence through the late Pleistocene in both ocean basins. The species-specific estimates of genetic divergence, however, vary greatly and for reef fishes we estimate substantially different divergence times among species. It is likely that Indian and Pacific Ocean populations have been isolated for multiple glacial cycles for some species, whereas for other species genetic connections have been more recent. Regional estimates of genetic diversity and directionality of gene flow also vary among species. Thus, there is no apparent consistency among historical patterns across the Torres Strait for these co-distributed marine animals. © 2011 Springer-Verlag.
dc.description.publication-statusPublished
dc.format.extent937 - 949 (13)
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000296085300009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationCORAL REEFS, 2011, 30 (4), pp. 937 - 949 (13)
dc.identifier.doi10.1007/s00338-011-0767-x
dc.identifier.elements-id235625
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0722-4028
dc.languageEnglish
dc.publisherSPRINGER
dc.relation.isPartOfCORAL REEFS
dc.rights(c) The Author/s CC BY
dc.subjectScience & Technology
dc.subjectLife Sciences & Biomedicine
dc.subjectMarine & Freshwater Biology
dc.subjectMARINE & FRESHWATER BIOLOGY
dc.subjectAustralia
dc.subjectCoalescence
dc.subjectCoral Triangle
dc.subjectGene flow
dc.subjectComparative phylogeography
dc.subjectPlanktonic larval dispersal
dc.subjectINDO-WEST PACIFIC
dc.subjectCORAL-REEF FISH
dc.subjectMITOCHONDRIAL-DNA ANALYSIS
dc.subjectSEA-LEVEL
dc.subjectDASCYLLUS-TRIMACULATUS
dc.subjectGLOBAL PHYLOGEOGRAPHY
dc.subjectSPECIES BOUNDARIES
dc.subjectAUSTRALIAN WATERS
dc.subjectSCYLLA-SERRATA
dc.subjectDIVERGENCE
dc.subject.anzsrc04 Earth Sciences
dc.subject.anzsrc05 Environmental Sciences
dc.subject.anzsrc06 Biological Sciences
dc.titleVicariance and dispersal across an intermittent barrier: Population genetic structure of marine animals across the Torres Strait land bridge
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Natural Sciences
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