Author affiliations: Author affiliations: The Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, China Agricultural University, Beijing, People’s Republic of China (J.L. Feng, Y.X. Hu, J.X. Zhao, G.Z. Zhang); Animal Husbandry and Veterinary Station of Beijing, Beijing (Z.J. Ma, Q. Yu, X.D. Liu)
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.
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