Figure 2

Network of haplogroup D5 in CHBs and combined controls consists of SRs and HCs. The variant order of the mtDNA control region is arbitrary on the branch. Each circle represents a kind of mtDNA haplogroup. The area of each circle is proportional to the haplogroup frequency. Sample sizes of the smallest and the largest sub-lineages were labeled in the corresponding circles. Length mutation of C-tract in region 16184–16193 was not considered during the network construction. The asterisks denote ancestral nodes of haplogroup D5.