Jinling Feng, Yanxin Hu, Zhijun Ma, Qi Yu, Jixun Zhao, Xiaodong Liu, and Guozhong Zhang
Figure 1. . Phylogenetic tree of avian infectious bronchitis virus based on the nucleotide sequences of the complete genome (A), S1 gene (B), S2 gene (C), E gene (D), M gene (E), and N gene (F). The phylogenetic tree was constructed by the neighbor-joining method with 1,000 bootstrap replicates (bootstrap values are shown on the tree). The isolate sequenced in this study is indicated with a black dot.