Figure 3From: Single nucleotide polymorphisms unravel hierarchical divergence and signatures of selection among Alaskan sockeye salmon (Oncorhynchus nerka) populationsFrequency plots of the major allele for four outlier SNPs in sockeye salmon. SNPs correspond to (a) One_HpaI-99, (b) One_GPH-414, (c) One_MHC2-190, and (d) One_MHC2-251 genotyped across 31 Alaskan populations (see Table 1 for population codes). Squares represent lakes from the Alagnak subdrainage (Battle: black; Kukaklek: grey; Nonvianuk: empty), whereas circles represent lakes from the Kvichak subdrainage (Clark: black; Sixmile: grey; Iliamna: empty).Back to article page