The similarity of samples was calculated as follow: Similarity =2 NAB/NA+NB, NAB is the number of bands shared by individuals A and B, NA and NB are the number of bands in individuals A and B, respectively(Chapco et al., 1992; Wilde et al., 1992). Phylogenetic relationships among 6 species were analyzed using the parsimony method and bootstrap analysis in the PAUP program (version 4.0b10).