Figure 2
Correlation between rate of nucleotide substitution ( K a and K s ) and percentage amino acid divergence. In-paralogs are denoted as squares, and out-paralogs are denoted as circles. Correlations between K a and amino acid divergence in in-paralogs and out-paralogs are shown in panel A and panel C, respectively. Also, correlations between K s and amino acid divergence in in-paralogs and in out-paralogs are shown in panel B and panel D, respectively.