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Authordc.contributor.authorLevicoy, Daniela
Authordc.contributor.authorFlores, Kamila
Authordc.contributor.authorRosenfeld Sekulovic, Sebastián Alejandro
Authordc.contributor.authorCárdenas, Leyla
Cita de ítemdc.identifier.citationScientifc Reports (2021) 11:5705es_ES
Abstractdc.description.abstractIt is well established that Antarctic biodiversity has been strongly influenced by rapid climatic fluctuations during the Quaternary. Marine invertebrates from Antarctica constitute an interesting lens through which to study the impacts of the last glacial periods as glaciation impacted the distribution and intraspecific genetic variation of these animals. However, the impact on the spatial genetic distribution and historical demography of local processes in areas adjacent to the West Antarctic Peninsula (WAP) is less clear. Here we present new genetic information on the bivalve Kidderia subquadrata, a small mollusk that inhabits intertidal rocky island ecosystems throughout the WAP. Using a phylogeographical approach, we examined the spatial patterns of genetic diversity in this brooder species to test the hypothesis of strong genetic structure in incubating organisms and the hypothesis of glacial refugia in organisms with limited dispersion. We found evidence of strong genetic structure among populations of the WAP and a recent expansion in the South Shetland Islands. Our findings are concordant with the predictions that incubating organisms, abundant in Antarctica, present a strong genetic structure among their populations and also support the hypothesis of glacial refugia in organisms with limited dispersion. The effect of the coastal current pattern in the WAP is suggested as a driver to the local spatial dynamics of the genetic diversity distribution. Although genetic information about this microbivalve is still scarce, the knowledge reported here has increased our understanding of the evolutionary patterns of this organism that is endemic to the Southern Ocean.es_ES
Patrocinadordc.description.sponsorshipNational Commission of Scientific and Technological Investigation of Chile through the Fondo de Financiamiento de Centros de Investigacion en areas Prioritarias (FONDAP) program Research Center: Dynamics of High Latitude Marine Ecosystems 15150003 Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 1170591 Instituto Antartico Chileno MG 06-17 Direccion de Estudios de Postgrado of Universidad Austral de Chile B113-2017 B026-2018 UK Research & Innovation (UKRI) Natural Environment Research Council (NERC) INACH DT_04-16es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
Link to Licensedc.rights.uri*
Sourcedc.sourceScientifc Reportses_ES
Keywordsdc.subjectLast glacial maximumes_ES
Keywordsdc.subjectSouth Shetland islandses_ES
Keywordsdc.subjectDrake passagees_ES
Keywordsdc.subjectCryptic speciationes_ES
Keywordsdc.subjectOcean barrierses_ES
Keywordsdc.subjectPolar frontes_ES
Títulodc.titlePhylogeography and genetic diversity of the microbivalve kidderia subquadrata, reveals new data from West Antarctic Peninsulaes_ES
Document typedc.typeArtículo de revistaes_ES
dc.description.versiondc.description.versionVersión publicada - versión final del editores_ES
dcterms.accessRightsdcterms.accessRightsAcceso abiertoes_ES
Indexationuchile.indexArtículo de publícación WoSes_ES

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Attribution-NonCommercial-NoDerivs 3.0 United States
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States