Range-wide parallel climate-associated genomic clines in Atlantic salmon.

ABSTRACT: Clinal variation across replicated environmental gradients can reveal evidence of local adaptation, providing insight into the demographic and evolutionary processes that shape intraspecific diversity. Using 1773 genome-wide single nucleotide polymorphisms we evaluated latitudinal variation in allele frequency for 134 populations of North American and European Atlantic salmon (Salmo salar). We detected 84 (4.74%) and 195 (11%) loci showing clinal patterns in North America and Europe, respectively, with 12 clinal loci in common between continents. Clinal single nucleotide polymorphisms were evenly distributed across the salmon genome and logistic regression revealed significant associations with latitude and seasonal temperatures, particularly average spring temperature in both conti

SUBMITTER: Jeffery NW 

PROVIDER: S-EPMC5717698 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature