Transmission Efficiency, Preference and Behavior of Bemisia tabaci MEAM1 and MED under the Influence of Tomato Chlorosis Virus.

Transmission Efficiency, Preference and Behavior of Bemisia tabaci MEAM1 and MED under the Influence of Tomato Chlorosis Virus.
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番茄褪绿病毒影响下烟粉虱MEAM1和MED的传播效率、偏好和行为

DOI:
10.3389/fpls.2017.02271
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发表时间:
2017
影响因子:
5.6
通讯作者:
Liu Y
Liu Y
中科院分区:
生物学2区
文献类型:
--
作者:
Shi X;Tang X;Zhang X;Zhang D;Li F;Yan F;Zhang Y;Zhou X;Liu Y

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番茄褪绿病毒(ToCV,长线病毒科 Crinivirus 属)是 20 多个国家的一种重要经济病毒。在中国,ToCV于2013年首次被发现,并已在全国蔓延。 ToCV 通过粉虱、烟粉虱(Bemisia tabaci)以半持续性方式传播,但种子不传播。近二十年来,入侵性最强的MEAM1和MED已经取代了中国本土的烟粉虱,目前MED是最主要的隐性物种。为了更好地了解 ToCV 及其载体的流行情况,我们检验了这样的假设:ToCV 在中国的快速传播与 MED 的主导地位密切相关。 MED 传输后的 ToCV 获取和累积率显着高于 MEAM1。此外,ToCV 在 MED 中持续超过 4 天,但在 MEAM1 中仅持续 2 天。与病毒感染的植物相比,带病毒的MED更喜欢未感染的植物,尽管MED在感染植物上的表现比未感染植物更好。我们的综合结果支持了最初的假设,即 ToCV 的快速传播与烟粉虱 MED 在中国的传播有关。
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.
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