Fig. 3

Genetic structure plots of K = 2 and 5 (A); ΔK values of the different number of clusters (B); and the BI tree (C) inferred from the concatenated nuDNA dataset for the LCC. Only the BI tree is presented, given that its topology is generally congruent with that of the ML tree. Black nodal numbers on major branches indicate posterior probabilities and bootstrap values obtained in the BI/ML analyses; only values ≥ 0.5 and ≥ 50% are represented. Red nodal numbers indicate SH-aLRT support. I: Coastal river Clade, II: MCJ lowland Clade, III: MCJ montane Clade, IV: Huai-He Clade, V: Han-Jiang Clade I; and VI: Han-Jiang Clade II