Variants. A) Regression of number of the variants on contig length for each contig with at least one variable site. B) Histograms of the log10 distribution of the TS/TV ratios for contigs containing SNPs, and the log10 distribution of Ka/Ks ratios for the contigs containing SNPs in predicted ORFs. Contigs with TS/TV < 1 (0 on log10 scale) and Ka/Ks > 1 (0 on log10 scale) are suggested to be under diversifying selection in these populations of garter snakes.
Schwartz et al. BMC Genomics 2010 11:694 doi:10.1186/1471-2164-11-694