Fig. 4

Selective sweep regions among different genetic clusters. Left panel is A sub-genome and right panel is C sub-genome, each with rings labeled a–g. a A and C chromosomes of B. napus. b SNP density within a 200 kb window across each chromosome. c–g selective sweep regions. Colors indicate different genetic clusters. Red: S; Orange: WEsA; Green: WeA; Purple: SK; Blue: R