Fig. 1.

Frequencies of mitochondrial cytochrome c oxidase subunit 1 (cox1) haplotypes in Chinese Echinococcus granulosus and their network based on statistical parsimony. In the network, the size of ovals indicates the frequency of the haplotypes. Small circles show hypothetical haplotypes. The haplotypes whose frequencies are more than 1% are connected with bold lines. Dark ovals represent the haplotypes found in Xinjiang, whereas the localities of gray ovals are Qinghai and Sichuan. A white oval shows the common haplotype.