Fig. 4.

Fig. 4. The haplotype network constructed by median-joining method. Haplotypes are named as in table 1. Red dots are median vectors, which are hypothesized sequences to connect existing sequences within the network under maximum parsimony. The yellow circles are haplotypes from the Jinsha River drainage, blue circles are haplotypes from the Lancang River drainage, and green circles represent haplotypes from the Nu River drainage. The size of the circles is proportional to haplotype frequency.