Confirmation and Sequence analysis of N gene of PPRV in South Xinjiang, China
文献类型: 外文期刊
第一作者: Liu, YongHong
作者: Liu, YongHong;Li, XianQiang;Zhang, Luyao;Li, Fei;Zhao, Li;Yang, Bo;Wang, XueFeng
作者机构:
关键词: PPR;diagnosis;N gene;sequence analysis
期刊名称:ARQUIVO BRASILEIRO DE MEDICINA VETERINARIA E ZOOTECNIA ( 影响因子:0.442; 五年影响因子:0.468 )
ISSN: 0102-0935
年卷期: 2017 年 69 卷 5 期
页码:
收录情况: SCI
摘要: In China, Peste des petits ruminants (PPR) was officially first reported in 2007. From 2010 until the outbreak of 2013, PPRV infection was not reported. In November 2013, PPRV re-emerged in Xinjiang and rapidly spread to 22 P/A/M (provinces, autonomous regions and municipalities) of China. In the study, suspected PPRV-infected sheep in a breeding farm of South Xinjiang in 2014 were diagnosed and the characteristics of complete sequence of N protein gene of PPRV was analyzed. The sheep showed PPRV-infected signs, such as fever, orinasal secretions increase, dyspnea and diarrhea, with 60% of morbidity and 21.1% of fatality rate. The macroscopic lesions after autopsy and histopathological changes were observed under light microscope including stomatitis, broncho-interstitial pneumonia, catarrhal hemorrhagic enteritis and intracytoplasmic eosinophilic inclusions in multinucleated giantcell in lung. The formalin-fixed mixed tissues samples were positive by nucleic acid extraction and RT-PCR detection. The nucleotide of N protein gene of China/XJNJ/2014 strain was extremely high homology with the China/XJYL/2013 strain, and the highest with PRADESH_95 strain from India in exotic strains. Phylogenetic analysis based on complete sequence of N protein gene of PPRV showed that the China/XJNJ/2014 strain, other strain of 2013-2014 in this study and Tibetan strains all belonged to lineage., but the PPRV strains of 2013-2014 in this study and Tibetan strains were in different sub-branches.
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