Evolutionary dynamics of recent peste des petits ruminants virus epidemic in China during 2013-2014

被引:29
作者
Bao, Jingyue [1 ]
Wang, Qinghua [1 ]
Li, Lin [1 ]
Liu, Chunju [1 ]
Zhang, Zhicheng [1 ]
Li, Jinming [1 ]
Wang, Shujuan [1 ]
Wu, Xiaodong [1 ]
Wang, Zhiliang [1 ]
机构
[1] China Anim Hlth & Epidemiol Ctr, Qingdao, Shandong, Peoples R China
关键词
Peste des petits ruminants virus; Evolution; Phylogenetic analysis; Transmission; FULL GENOME SEQUENCE; GENETIC-CHARACTERIZATION; LINEAGE IV; EMERGENCE; OUTBREAK; TIBET; LIVESTOCK; PATTERNS; PROVINCE;
D O I
10.1016/j.virol.2017.07.018
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Peste des petits ruminants virus (PPRV) causes a highly contagious disease, peste des petits ruminants (PPR), in sheep and goats which has been considered as a serious threat to the local economy in Africa and Asia. However, the in-depth evolutionary dynamics of PPRV during an epidemic is not well understood. We conducted phylogenetic analysis on genomic sequences of 25 PPRV strains from China 2013-2014 outbreaks. All these strains clustered into a novel Glade in lineage 4. An evolutionary rate of 2.61 x 10(-6) nucleotide substitutions per site per day was estimated, dating the most recent common ancestor of PPRV China 2013-2014 strains to early August 2013. Transmission network analysis revealed that all the virus sequences could be grouped into five clusters of infection, suggesting long-distance animal transmission play an important role in the spread of PPRV in China. These results expanded our knowledge for PPRV evolution to achieve effective control measures.
引用
收藏
页码:156 / 164
页数:9
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