文献类型: 外文期刊
第一作者: Dai, Li
作者: Dai, Li;Tao, Pan;Li, Zejun
作者机构:
关键词: Tembusu virus (TMUV);Evolution;Phylogenetic analysis
期刊名称:INFECTION GENETICS AND EVOLUTION ( 影响因子:3.342; 五年影响因子:3.188 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: We recently identified Tembusu virus (TMUV) as a causative agent of duck infectious disease, which has spread in China since 2010. A recent study has indicated a potential case of human infection by TMUV, highlighting the need for further study of TMUV, especially its evolution. Because no information exists regarding the evolution of TMUV, we conducted comprehensive phylogenetic analyses using the largest collection of complete open reading frame (ORF) sequences of TMUV. Our results indicated that two lineages of viruses were associated with the 2010 outbreak in China, and lineage II, in particular sublineage II-c, has arisen as the dominant lineage currently circulating. We inferred that the most recent common ancestor (MRCA) of this TMUV was emerged around 1996. Evidence of natural recombination was also detected in TMUV. Molecular adaptation analyses revealed that strong negative selection shaped the evolution of TMUV, while a number of codons subjected to positive pressure were also identified. Our study, for the first time, illustrated the evolutionary history and character of TMUV and will be helpful for vaccine and diagnostic development. (C) 2015 Elsevier B.V. All rights reserved.
分类号: R1
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