Article
[Genetic variation of S1 gene hypervariable region I of infectious bronchitis viruses isolated in different periods in Guangxi].
Bing du xue bao = Chinese journal of virology - 1 Jun 2008
Wei Zheng-Ji, Wei Ping, Mo Mei-Lan, Li Meng, Wei Tian-Chao, Li Kang-Ran
Abstract excerpt
The S1 gene hypervariable region I (HVR I) of 22 infectious bronchitis virus (IBV) strains isolated in Guangxi during the period of 1985-2007 were sequenced and compared to that of the other IBV reference strains and the pigeon coronavirus isolates. A phylogenetic tree based on nucleotide sequences of HVR I of all the IBV showed that they were classified into 5 distinct Clusters. 16 out of 22 IBV isolates were...
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