Fig. 6

Synteny analysis and Ka/Ks ratios of CDK and CDKL genes between cultivated peanut and its diploid parents. A The collinear gene pairs between A. hypogaea ­ A. duranensis and A. hypogaea—A. ipaensis were identified by MCscanX. The grey shades in the background indicate the collinear blocks between A. hypogaea ­ A. duranensis and A. hypogaea—A. ipaensis. Other different colored lines correspond to the various CDK group gene pairs. B The Ka/Ks ratios of the predicted CDK and CDKL genes orthologs and paralogs. The Ka/Ks ratios of 0.05, 0.25 and 0.8 are depicted as black lines. The different dot colors represent gene pairs belonging to diverse CDK groups