Phylogenetic Characterization Genome Segment 2 of Bluetongue Virus Strains Belonging to Serotypes 5, 7 and 24 Isolated for the First Time in China During 2012 to 2014
文献类型: 外文期刊
作者: Yang, H. 1 ; Xiao, L. 1 ; Wang, J. 1 ; Meng, J. 1 ; Lv, M. 2 ; Liao, D. 1 ; Song, J. 1 ; Gao, L. 1 ; Xiong, H. 1 ; He, Y. 1 ; Niu, 1 ;
作者机构: 1.Yunnan Anim Sci & Vet Inst, Yunnan Trop & Subtrop Anim Virus Dis Lab, Kunming, Peoples R China
2.Guangdong Acad Agr Sci, Inst Anim Hlth, Guangzhou, Guangdong, Pe
关键词: Bluetongue virus;serotype 5;7 and 24;segment 2;phylogenetic characterization;China
期刊名称:TRANSBOUNDARY AND EMERGING DISEASES ( 影响因子:5.005; 五年影响因子:4.622 )
ISSN:
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收录情况: SCI
摘要: Bluetongue is endemic in China, and Bluetongue virus (BTV) strains belonging to eight different serotypes (BTV-1, BTV-2, BTV-3, BTV-4, BTV-9, BTV-12, BTV-15 and BTV-16) had been isolated between 1996 and 1997. However, there has been a long pause in investigating the epidemiology of BTV infection since then. During 2012-2014, eight BTV strains belonging to serotypes 5, 7 and 24 were isolated for the first time in Yunnan and Guangdong provinces from the blood of sentinel animals. Phylogenetic analyses of genome segment 2 of these Chinese BTV strains grouped them into nucleotypes E, F and A, respectively, along with the reference strains of the same serotype. For each serotype, Chinese strains cluster together closely to form a China's sublineage. In addition, these strains were most closely related to strains from Africa, indicating that they may share a recent common ancestry with African strains. To our knowledge, this is the first time that BTV-5, BTV-7 and BTV-24 strains have been isolated in South-East Asia. These data will be beneficial for understanding the BTV epidemiology and improving diagnostic assays and control measures against bluetongue in China and its neighbouring countries in the Asia-Pacific region.
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