Figure 3. Positively-selected codon transformations tracked over a clade credibility (MMC) tree.

Light gray boxes represent SJRP clades. Numbers indicates codon position and one-letter symbols indicate amino-acids. Transformations for each character can be evaluated as follows: • Unique transformation all over the tree; ▪ character state fixed along that branch; ◂ same transformation occurs in another branch (homoplasy); ▸ transformation(s) in the same character occurs along that branch; ⧫ same transformation occurs in another branch (homoplasy) and transformation(s) in the same character occur along that branch.