The Evolutionary Significance of Generalist Viruses with Special Emphasis on Plant Viruses and their Hosts

Mayank Kumar, R. Bharti, Tushar Ranjan
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引用次数: 2

Abstract

The host range of a virus is defined as the number of species a virus potentially infects. The specialist virus infects one or few related species while the generalist virus infects several different species, possibly in different families. Origin of generalist viruses from their specialist nature and the expansion of the host range of the generalist virus occur with the host shift event in which the virus encounters and adapts to a new host. Host shift events have resulted in the majority of the newly emerging viral diseases. This review discusses the advantages and disadvantages of generalist over specialist viruses and the unique features of plant viruses and their hosts that result in a higher incidence of generalist viruses in plants.
泛型病毒的进化意义,特别强调植物病毒及其宿主
病毒的宿主范围定义为病毒可能感染的物种数量。专科病毒感染一个或几个相关的物种,而通才病毒感染几个不同的物种,可能在不同的科。多面手病毒从其专门性中产生并扩展其宿主范围,发生在病毒遇到并适应新宿主的宿主转移事件中。大多数新出现的病毒性疾病是由宿主转移事件引起的。本文综述了多面手病毒相对于专门性病毒的优缺点,以及植物病毒及其寄主的独特特征导致多面手病毒在植物中的发病率较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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