Fig. 3

The distribution of Rgrcs in the G. raimondii genome. All genes encoded by the G. raimondii genome were arranged in a series from Chr01 to Chr13. The ratio of RGA genes was calculated in the moving window (50 genes/window, walking forward 10 genes each time). RGA gene frequencies greater than 10 % were considered Rgrcs and clusters only containing 6 RGA genes in a window, but distributed evenly, were removed. The X-axis represents the number of genes in the cotton genome and the Y-axis represents the RGA gene ratio in the moving window