Fig. 2From: Molecular epidemiology of hepatitis C infections in Ningxia, China: genotype, phylogeny and mutation analysisSubtype distribution of HCV based on the NS5B sequences from 79 subjects. a The circular phylogenetic tree was generated using the software MEGA 6.0, with maximum-likelihood (ML) method and GTR + I + Γ model with 500 bootstrap replications. HCV sequences were named by “city of serum collection” and “ID number”, where YC, SZS, TX, GY, ZW, and WZ standing for six cities in Ningxia, that is, Yinchuan, Shizuishan, Tongxin, Guyuan, Zhongwei, and Wuzhong, respectively. A pie chart showing the subtype distribution was combined with the tree topology. b A bar chart showing the subtype distribution by cities in NingxiaBack to article page