Nucleotide substitution flows in the three lineages of simians, sperm whale, and elephant.

Table gives the nucleotide substitution flows of nonsynonymous changes at the first and second codon sites, and those of synonymous changes at the FD3rd sites. The quantity X→Y denotes the net flow from X to Y. The values u and v in parentheses (u, v) denote the fractions in the two score regions S<0.6 and S>0.6, respectively. A, B, and C represent the three cases of simians, sperm whale, and elephant, respectively. D indicates the case of the real sequence of the tree shrew with a short branch instead of the root sequence of the primates, to confirm that the estimation of the root sequence is not very biased.