A plant virus mediates interspecific competition between its insect vectors inCapsicuum annuum
A plant virus mediates interspecific competition between its insect vectors inCapsicuum annuum
复制标题
植物病毒介导辣椒昆虫载体之间的种间竞争
DOI：
10.1007/s10340-020-01211-z
复制
发表时间：
2020-03-10
影响因子：
4.8
通讯作者：
Zhang, Jie
中科院分区：
文献类型：
--
作者：
Chen, Yong;Zheng, Xue;Zhang, Jie
植物病毒可以改变昆虫媒介的性能和行为，以最大限度地提高其传播率。病毒是否可以进化为介导昆虫媒介的种间竞争还知之甚少。在这里，我们使用了两个载体的番茄带状斑点病毒（TROPHIN V），一个本地物种（蓟马帕尔米）和一个外来物种（Frankliniella occurentalis），调查这在实验室和田间试验。当蓟马物种彼此分离时，TADV感染增加了其昆虫载体的种群增长。当两种植物共存时，F. OccurmentalisdisplacedT.棕榈科感染和未感染TMDV的植物。而在感染TTV的植株上，F. Occentralis完全取代T. palmimore迅速（14天内）比未感染的植物。研究结果还表明，两种蓟马之间存在生殖干扰，而感染TGV的辣椒显著降低了TGV对两种蓟马的生殖干扰。棕榈油[咒语]当F. OccurmentalisandT.在云南省晋宁县，发现F.结果表明，感染TGV的辣椒提高了F. OccupationalisoverT.棕榈在田野里。总之，我们的研究结果表明，植物病毒在竞争性取代其昆虫载体中发挥着重要作用。
Plant viruses can modify the performance and behavior of insect vectors to maximize their transmission rates. Whether viruses can evolve to mediate their insect vectors' interspecific competition is poorly understood. Here, we used two vectors of tomato zonate spot virus (TZSV), one native species (Thrips palmi) and one exotic species (Frankliniella occidentalis), to investigate this in laboratory and field experiments. TZSV infection increased the population growth of its insect vectors when the thrips species were isolated from one another. When both species coexisted,F. occidentalisdisplacedT. palmion both TZSV-infected and uninfected plants. However, on TZSV-infected plant,F. occidentaliscompletely displacedT. palmimore rapidly (within 14 days) than on uninfected plants. Our results also revealed that reproductive interference occurred between the two thrips species, whereas TZSV-infected pepper significantly decreased the reproductive interference ofT. palmitoF. occidentalis. WhenF. occidentalisandT. palmico-occurred in Jinning County, Yunnan Province, we found a rising trend of natural proportions ofF. occidentalisin the TZSV-infected pepper fields, suggesting that TZSV-infected pepper enhanced the competitive advantage ofF. occidentalisoverT. palmiin the field. Together, our findings demonstrate a plant virus that plays an important role in the competitive displacement of its insect vectors.