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New genetic mechanism, origin and population dynamic of bovine ephemeral fever virus

文献类型： 外文期刊

作者： He, Cheng-Qiang 1 ; Liu, Ya-Xin 1 ; Wang, Hong-Mei 2 ; Hou, Pei-Li 2 ; He, Hong-Bin 2 ; Ding, Nai-Zheng 1 ;

作者机构： 1.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Shandong, Peoples R China

2.Shandong Acad Agr Sci, Daily Cattle Res Ctr, Jinan 250100, Shandong, Peoples R China

关键词： Bovine ephemeral fever virus;Homologous recombination;Genetic diversity

期刊名称：VETERINARY MICROBIOLOGY （ 影响因子：3.293； 五年影响因子：3.599 ）

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收录情况： SCI

摘要： Bovine ephemeral fever virus (BEFV) is a typical species of the genusEphemerovirus in the family Rhabdoviridae. Today, prevailing BEFV can be divided into three phylogeographic lineages, East Asia, Mideast, and Australia. In this study, we provide evidence that the whole East Asia lineage originates from a homologous recombination (HR) between the Mideast and Australia lineages that probably occurred in the 1940s. To our knowledge, HR has not been proposed before as the genetic mechanism of BEFV. According to the HR event and Bayesian estimation, the three BEFV lineages might originate from Africa, and may have spread to Asia and Australia through the Mideast. In addition, the population of the virus may have augmented significantly in the 2000s, suggesting that the risk for outbreaks of BEFV may be high at present. (C) 2015 Elsevier B.V. All rights reserved.

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