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Evaluating signatures of glacial refugia for North Atlantic benthic marine taxa

2008-11Journal article Open access
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dc.contributor.authorMaggs, Christine A.
dc.contributor.authorCastilho, Rita
dc.contributor.authorFoltz, David
dc.contributor.authorHenzler, Christy
dc.contributor.authorJolly, Marc Taimour
dc.contributor.authorKelly, John
dc.contributor.authorOlsen, Jeanine
dc.contributor.authorPerez, Kathryn E.
dc.contributor.authorStam, Wytze
dc.contributor.authorVainola, Risto
dc.contributor.authorViard, Frederique
dc.contributor.authorWares, John
dc.date.accessioned2018-12-07T14:58:00Z
dc.date.available2018-12-07T14:58:00Z
dc.date.issued2008-11
dc.description.abstractA goal of phylogeography is to relate patterns of genetic differentiation to potential historical geographic isolating events. Quaternary glaciations, particularly the one culminating in the Last Glacial Maximum similar to 21 ka (thousands of years ago), greatly affected the distributions and population sizes of temperate marine species as their ranges retreated southward to escape ice sheets. Traditional genetic models of glacial refugia and routes of recolonization include these predictions: low genetic diversity in formerly glaciated areas, with a small number of alleles/haplotypes dominating disproportionately large areas, and high diversity including "private'' alleles in glacial refugia. In the Northern Hemisphere, low diversity in the north and high diversity in the south are expected. This simple model does not account for the possibility of populations surviving in relatively small northern periglacial refugia. If these periglacial populations experienced extreme bottlenecks, they could have the low genetic diversity expected in recolonized areas with no refugia, but should have more endemic diversity (private alleles) than recently recolonized areas. This review examines evidence of putative glacial refugia for eight benthic marine taxa in the temperate North Atlantic. All data sets were reanalyzed to allow direct comparisons between geographic patterns of genetic diversity and distribution of particular clades and haplotypes including private alleles. We contend that for marine organisms the genetic signatures of northern periglacial and southern refugia can be distinguished from one another. There is evidence for several periglacial refugia in northern latitudes, giving credence to recent climatic reconstructions with less extensive glaciation.
dc.description.sponsorshipNSF; Marbef [GOCE-CT-2003-505446]; Intra-European Marie Curie Fellowship [EIF-024781]; 6th European Community Framework Program
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1890/08-0257.1
dc.identifier.issn0012-9658
dc.identifier.urihttp://hdl.handle.net/10400.1/11808
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEcological Soc Amer
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSea-level change
dc.subjectMitochondrial-Dna
dc.subjectClimate-change
dc.subjectComparative phylogeography
dc.subjectReproductive isolation
dc.subjectPopulation-structure
dc.subjectGenetic diversity
dc.subjectSt-lawrence
dc.subjectIce-age
dc.subjectPostglacial colonization
dc.titleEvaluating signatures of glacial refugia for North Atlantic benthic marine taxa
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPageS122
oaire.citation.issue11
oaire.citation.startPageS108
oaire.citation.titleEcology
oaire.citation.volume89
person.familyNameCastilho
person.givenNameRita
person.identifier452212
person.identifier.ciencia-id0513-0407-A6C1
person.identifier.orcid0000-0003-0727-3688
person.identifier.ridB-6185-2008
person.identifier.scopus-author-id56271196600
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication051f68ec-18e0-4008-b06d-bf4b996fa098
relation.isAuthorOfPublication.latestForDiscovery051f68ec-18e0-4008-b06d-bf4b996fa098

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