Fig. 3
From: A willow sex chromosome reveals convergent evolution of complex palindromic repeats
Synonymous substitution rates (dS) for genes in the SDR. a Comparison of syntenic genes in the W-SDR and Z-SDR. Bars represent standard errors. b Boxplot showing distributions of interspecific synonymous substitutions for 1365 syntenic genes on Chr01 for the closely related species S. purpurea and S. suchowensis and for 1363 genes on Chr01 in S. purpurea and Populus trichocarpa, compared to the distribution of substitutions between syntenic genes in the S. purpurea SDR