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Virologica Sinica, 32 (2) : 159, 2017
Letter
A novel mosquito-borne reassortant orbivirus isolated from Xishuangbanna, China
1. State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
2. Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Yunnan Institute of Parasitic Diseases, Pu'er 665000, China
3. Hebei Normal University, College of Science, Shijiazhuang 050024, China
 Correspondence: zhouhn66@163.com;zhang_jiusong113@163.com;tong.yigang@gmail.com
(1264.03KB)  (1470.73KB)  
Abstract
In this study, we report a novel mosquito-borne reassortant Orbivirus species, which we named Banna orbivirus (BAOV). The virus was isolated from a Culex tritaeniorhynchus pool collected in Xishuangbanna, Yunnan Province, China in 2007. Whole genome and phylogenetic analyses revealed that BAOV is a reassortant of several Tibet orbivirus strains. It has a double-stranded RNA genome of 19, 270 bp, containing ten segments (S1–S10) of various lengths. The 10 segments of BAOV had high nucleotide and amino acid sequence similarity with segments of either Fengkai orbivirus or Tibet orbivirus (TIBOV, XZ0906 strain). Phylogenetic analyses indicated that the novel BAOV is a reassortant derived from XZ0906 and Fengkai orbiviruses, and is a Tibet orbivirus. This is the first report of a novel genomic reassortment of Tibet orbivirus isolated in China; these findings contribute to our understanding of the diversity of orbiviruses.
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Received: 24 Apr 2017  Accepted: 24 Apr 2017  Published online: 24 Apr 2017
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