Bayesian phylogenetic tree based on control region. Numbers above and below the branches are posterior probabilities and bootstrap support values (1,000 iterations), respectively. Two recovered clades, i and ii, represent two subspecies R. a. superans and R. a. macrurus, respectively. Two subclades were recovered within each main clade. TMRCA are scaled by BEAST, for which the 95% credible intervals are shown in blue bars.