Original and corrected Ks distribution among syntenic genes within and between genomes of V. vinifera (Vvi), B. loranthoides (Blo), B. hispida (Bhi), C. moschata (Cmo), C. melo (Cme), C. argyrosperma (Car), C. sativus (Csa), and C. lanatus (Cla). (A) Distribution of Ks values between colinear gene pairs before evolutionary rate correction. The different colored peaks indicate the normal distribution of the colinear gene pairs Ks. The values in parentheses are the peaks Ks corresponding to the events. (B) Time of key evolutionary events after evolutionary rate correction. The values in parentheses are the times corresponding to the events.