Population genetic analysis reveals a geographically limited transition zone between two genetically distinct Atlantic salmon lineages in Norway.

ABSTRACT: Atlantic salmon is characterized by a high degree of population genetic structure throughout its native range. However, while populations inhabiting rivers in Norway and Russia make up a significant proportion of salmon in the Atlantic, thus far, genetic studies in this region have only encompassed low to modest numbers of populations. Here, we provide the first "in-depth" investigation of population genetic structuring in the species in this region. Analysis of 18 microsatellites on >9,000 fish from 115 rivers revealed highly significant population genetic structure throughout, following a hierarchical pattern. The highest and clearest level of division separated populations north and south of the Lofoten region in northern Norway. In this region, only a few populations displayed intermed

SUBMITTER: Wennevik V 

PROVIDER: S-EPMC6662299 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature