Fig. 2
Identification of genomic regions under selection in Northern and Southern Norway. a Manhattan plot showing differentiated SNPs between northern and southern populations of Atlantic salmon in Norway. The x-axis indicates chromosomal positions; the y-axis presents the negative logarithm of the P-value for allele frequencies being different between the two geographical regions. SNPs in selective sweep regions identified using FST/heterozygosity are indicated by red dots. SNPs above the dashed horizontal line (p < 1.0658e-4, 0.1 % FDR) have significantly different allele frequencies between the two geographical regions. b and c Magnification showing 500 kb of selective sweeps on Chr 5 and Chr 25. SNPs are indicated as black dots and missense mutations are marked with red squares. The track labeled “HET” shows the heterozygosity of salmon from Northern (blue) and Southern Norway (green) in 3 kb windows. The track labeled “FST” shows the FST between populations in Northern and Southern Norway in 3 kb windows. In the bottom, identified genes are shown, with genes containing differentiated missense mutations colored black. The x-axis shows the chromosomal positions given in kb