中文摘要：番茄褪绿病毒（ToCV）是20多个国家中经济上重要的害虫。2013年首次在中国发现ToCV，目前已传播至全国。ToCV由烟粉虱以半持续方式传播，而不是种传。在过去的20年中，最具侵入性的烟粉虱隐种MEAM1和MED已经取代了中国本土B型烟粉虱，目前MED已成为最具优势的隐性物种。为了更好地理解ToCV随其介体的流行，本研究检测了ToCV在中国的快速传播与MED优势密切相关的假说。经MED传播后的ToCV获取和累积速率明显比MEAM1高。此外，ToCV在MED中持续的时间超过4天以上，而MEAM1中仅可持续2天。虽然MED在感染病毒植株上的行为表现优于未感染病毒植株，但带毒MED更偏好于选择未感染病毒的植株。本研究的综合结果支持ToCV在中国的快速传播与烟粉虱传播有关系的初步假设。
外文摘要：Tomato chlorosis virus (ToCV, genus Crinivirus. family Closteroviridae) is an economically important virus in more than 20 countries. In China, ToCV was first detected in 2013 and has already spread throughout the country. ToCV is transmitted in a semi-persistent manner by the whitefly, Bemisia tabaci, but not seed. In the past two decades, the most invasive MEAM1 and MED have replaced the indigenous B. tabaci in China, and currently MED is the most dominant cryptic species. To better understand the prevalence of ToCV with their vectors, we tested the hypothesis that the rapid spread of ToCV in China is closely related to the dominance of MED. ToCV acquisition and accumulation rate following transmission was significantly higher by MED than MEAM1. In addition, ToCV persisted for more than 4 days in MED but only 2 days in MEAM1. Viruliferous MED preferred non-infected over virus-infected plants, although MED performed better on infected than on non-infected plants. Our combined results support the initial hypothesis that the rapid spread of ToCV is associated with the spread of B. tabaci MED in China.
外文关键词：tomato chlorosis virus; Bemisia tabaci; tomato; MEAM1 and MED; vector
作者：Shi, Xiaobin; Tang, Xin; Zhang, Xing; 等
作者单位：湖南农业科学院
期刊名称：FRONTIERS IN PLANT SCIENCE
期刊影响因子：4.298
出版年份：2018
出版刊次：2
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