Signatures of selection at GRM7 in the pig. Structure of sequence variation around genes showing the strongest selection signal in Yorkshire (A). Only variable sites are shown in the alignment of sequences for wild boar (W), Yorkshire (Y) and Landrace (L). The ancestral and derived alleles are colored in orange and blue, respectively. Variable sites located up to 15 kb up-stream and 15 kb down-stream from the focal bin/site (red dashed box/red vertical line) are shown. Test statistics shown are log2(π
2)), π, PBS above the top 1% value (bins), and |iHS| above the top 1% value (sites) (B). Red dashed arrows indicates the locations of exons of GRM7. The corresponding gene structure of GRM7
(C). Detailed linkage disequilibrium structure of GRM7 dictated in HaploView. Increasing intensities of red represent higher r
2 values (D).