Vis enkel innførsel

dc.contributor.authorJorde, Per Erik
dc.contributor.authorAndersson, Anastasia
dc.contributor.authorRyman, Nils
dc.contributor.authorLaikre, Linda
dc.date.accessioned2018-11-08T14:17:47Z
dc.date.available2018-11-08T14:17:47Z
dc.date.created2018-11-06T12:35:04Z
dc.date.issued2018
dc.identifier.citationMolecular Ecology. 2018, 27 (20), 4011-4025.nb_NO
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/11250/2571675
dc.description.abstractSympatric populations are conspecific populations that coexist spatially. They are of interest in evolutionary biology by representing the potential first steps of sympatric speciation and are important to identify and monitor in conservation management. Reviewing the literature pertaining to sympatric populations, we find that most cases of sympatry appear coupled to phenotypic divergence, implying ease of detection. In comparison, phenotypically cryptic, sympatric populations seem rarely documented. We explore the statistical power for detecting population mixtures from genetic marker data, using commonly applied tests for heterozygote deficiency (i.e., Wahlund effect) and the structure software, through computer simulations. We find that both tests are efficient at detecting population mixture only when genetic differentiation is high, sample size and number of genetic markers are reasonable and the sympatric populations happen to occur in similar proportions in the sample. We present an approximate expression based on these experimental factors for the lower limit of FST, beyond which power for structure collapses and only the heterozygote‐deficiency tests retain some, although low, power. The findings suggest that cases of cryptic sympatry may have passed unnoticed in population genetic screenings using number of loci typical of the pre‐genomics era. Hence, cryptic sympatric populations may be more common than hitherto thought, and we urge more attention being diverted to their detection and characterization.nb_NO
dc.language.isoengnb_NO
dc.titleAre we underestimating the occurrence of sympatric populations?nb_NO
dc.title.alternativeAre we underestimating the occurrence of sympatric populations?nb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber4011-4025nb_NO
dc.source.volume27nb_NO
dc.source.journalMolecular Ecologynb_NO
dc.source.issue20nb_NO
dc.identifier.doi10.1111/mec.14846
dc.identifier.cristin1627468
cristin.unitcode7431,23,0,0
cristin.unitnamePopulasjonsgenetikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel