Abstract：
:The role of marginal populations for the long-term maintenance of species' genetic diversity and evolutionary potential is particularly timely in view of the range shifts caused by climate change. The Centre-Periphery hypothesis predicts that marginal populations should bear reduced genetic diversity and have low evolutionary potential. We analysed temporal stability at neutral microsatellite and adaptive MHC genetic variation over five decades in four marginal Atlantic salmon populations located at the southern limit of the species' distribution with a complicated demographic history, which includes stocking with foreign and native salmon for at least 2 decades. We found a temporal increase in neutral genetic variation, as well as temporal instability in population structuring, highlighting the importance of temporal analyses in studies that examine the genetic diversity of peripheral populations at the margins of the species' range, particularly in face of climate change.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ciborowski K,Jordan WC,Garcia de Leaniz C,Consuegra Sdoi
10.1038/srep42416subject
Has Abstractpub_date
2017-02-10 00:00:00pages
42416issn
2045-2322pii
srep42416journal_volume
7pub_type
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