Fig. 3

Median-joining network and phylogeographic distribution of woolly rhinoceros. (a) Median-joining network based on 563 bp cyt b sequences of woolly rhinoceros from Northern China, Yakutia, Chukotka and Wrangel Island. Each circle represents an independent haplotype and black nodes are missing haplotypes. Circle colors indicate the geographical regions. Hatch marks represent the number of mutational sites between two adjacent haplotypes. Detailed information of haplotype is listed in Table S2. (b) Geographical distribution of the maternal haplogroups revealed by the median-joining network analysis. Circle colors indicate the haplogroups. The sizes of the circles in both (a) and (b) are proportional to the number of the sample of given haplotype ((a): Maximum = 10; (b): Maximum = 5)