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dc.contributor.authorWestergaard, Kristine Bakke
dc.contributor.authorZemp, Niklaus
dc.contributor.authorBruederle, Leo P.
dc.contributor.authorStenøien, Hans K.
dc.contributor.authorWidmer, Alex
dc.contributor.authorFior, Simone
dc.date.accessioned2019-03-05T15:13:11Z
dc.date.available2019-03-05T15:13:11Z
dc.date.created2019-02-28T12:26:54Z
dc.date.issued2019
dc.identifier.citationMolecular Ecology. 2019, 28 818-832.nb_NO
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/11250/2588875
dc.description.abstractQuaternary glaciations have played a major role in shaping the genetic diversity and distribution of plant species. Strong palaeoecological and genetic evidence supports a postglacial recolonization of most plant species to northern Europe from southern, eastern and even western glacial refugia. Although highly controversial, the existence of small in situ glacial refugia in northern Europe has recently gained molecular support. We used genomic analyses to examine the phylogeography of a species that is critical in this debate. Carex scirpoidea Michx subsp. scirpoidea is a dioecious, amphi‐ Atlantic arctic–alpine sedge that is widely distributed in North America, but absent from most of Eurasia, apart from three extremely disjunct populations in Norway, all well within the limits of the Weichselian ice sheet. Range‐wide population sampling and variation at 5,307 single nucleotide polymorphisms show that the three Norwegian populations comprise unique evolutionary lineages divergent from Greenland with high between‐population divergence. The Norwegian populations have low within‐population genetic diversity consistent with having experienced genetic bottlenecks in glacial refugia, and host private alleles that probably accumulated in long‐term isolated populations. Demographic analyses support a single, pre‐Weichselian colonization into Norway from East Greenland, and subsequent divergence of the three populations in separate refugia. Other refugial areas are identified in North‐east Greenland, Minnesota/Michigan, Colorado and Alaska. Admixed populations in British Columbia and West Greenland indicate postglacial contact. Taken together, evidence from this study strongly indicates in situ glacial survival in Scandinavia. arctic–alpine phylogeography, Carex scirpoidea, ddRAD‐seq, demographic inference, glacial survival, Pleistocene refugianb_NO
dc.language.isoengnb_NO
dc.publisherWileynb_NO
dc.titlePopulation genomic evidence for plant glacial survival in Scandinavianb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber818-832nb_NO
dc.source.volume28nb_NO
dc.source.journalMolecular Ecologynb_NO
dc.identifier.doi10.1111/mec.14994
dc.identifier.cristin1681323
dc.relation.projectNorges forskningsråd: 231120nb_NO
dc.description.localcodeLocked until 24.12.2019 due to copyright restrictions. This is the peer reviewed version of an article, which has been published in final form at https://doi.org/10.1111/mec.14994. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.nb_NO
cristin.unitcode194,31,10,0
cristin.unitnameInstitutt for naturhistorie
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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