FIG 2.

Evolutionary relationship of PahAc (a), PahB (b), PahC (vicinal chelate protein family) (c1), PahC (LigAB protein family) (c2), PahD (d), PahE (e), and PahF (f) based on amino acid sequences. The detailed information of each tree is provided in corresponding Table S2a, b, c1, c2, and d to f. Bootstrap support is indicated at individual branches. Parentheses in labels represent the number of branches in the clade. The branches or clades belonging to Pah are indicated by red, while those belonging to Arh are indicated by lake blue. The new potential Pah are indicated by purple branches or clades. The scale bar indicates 0.1 branch distance.