Figure 4

The phylogeny of four rate-limiting genes involved in pigment synthesis. (a) The concordant phylogenetic tree of tyrosinase family (TYRP1, DCT, and TYR) using maximum likelihood, neighbor-join and minimal evolutionary methods. The corresponding bootstrap values were showed on branch labels. (b) The concordant phylogenetic tree of SPR gene using maximum likelihood, neighbor-join and minimal evolutionary methods. The corresponding bootstrap values were showed on branch labels.