Genetic variation of nucleocapsid genes of porcine epidemic diarrhea virus field strains in China

被引：0
作者：
Jianfei Chen
Xiaozhen Liu
Hongwu Lang
Zhongtian Wang
Da Shi
Hongyan Shi
Xin Zhang
Li Feng
机构：
[1] Chinese Academy of Agricultural Sciences,Division of Swine Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute
[2] China Institute of Veterinary Drug Control,undefined
来源：
Archives of Virology | 2013年 / 158卷
关键词：
Field Strain; Porcine Epidemic Diarrhea Virus; Infectious Bronchitis Virus; Porcine Epidemic Diarrhea Virus Strain; Predict Phosphorylation Site;
D O I：
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中图分类号：
学科分类号：
摘要：
Porcine epidemic diarrhea virus (PEDV) poses a great threat to the Chinese swine industry. During 2006–2011, 74.0 % (94/127) of samples from 32 swine-raising farms in 15 provinces were positive for PEDV by reverse transcription nested polymerase chain reaction (RT-nested PCR). The sequences of nucleocapsid (N) genes of 32 representative field strains were determined, and the open reading frames (ORFs) of these N genes were 1326 nucleotides long. The N gene sequences were found to be more than 95 % identical to each other. The number of potential phosphorylation sites in the N protein varied from 5 to 12. A phylogenetic tree based on the N genes showed that the 32 Chinese field strains formed three groups.
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页码：1397 / 1401
页数：4
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