Strict consensus trees of SDBE gene from 72 most parsimonious trees. Numbers above branches: bootstrap values (only those > 50% showed), below: Posterior probability (only those > 0.5 showed). a or b: alleles of a heterozygous locus. 2× or 4×: ploidy levels. Dash lines indicated the nodes supported by Bayesian inference. Tree length = 184, Consistency index (CI) = 0.8859, Retention index (RI) = 0.9694, Bayesian inference -ln L = -4517.46 (Gray Square: C and C-like copy; White Square: B and B-like copy; Black Square: E and E-like copy).