Fig. 6From: PoSE: visualization of patterns of sequence evolution using PAML and MATLABAnnotation of a phylogenetic tree with inferred substitutions in external and internal branches. The sequences that have transitions in second position are highlighted in red. For example, the nucleotide substitutions that lead to nonsynonymous mutations are reported as “18_1@Ts1_3@Ts2_2@Tv1”. This means that sequence #18 has one transition (Ts) at the first codon position, three Ts at the second codon position and two transversions at the first codon positionBack to article page