First discovery of Arsenophonus infection in spiders, predators of insect pests
First discovery of Arsenophonus infection in spiders, predators of insect pests
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DOI：
10.1111/jen.13017
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发表时间：
2022-07
影响因子：
1.9
通讯作者：
Han-hu Jiang;Yunchuan Ding;Dongxiao Zhao;Xiangdong Liu;Hui Guo
中科院分区：
文献类型：
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作者：
Han-hu Jiang;Yunchuan Ding;Dongxiao Zhao;Xiangdong Liu;Hui Guo
兼性内共生体Arsenophonus对害虫及其寄生蜂的感染已经有了很好的研究，而这种共生体对害虫捕食者的感染还没有报道。在这里，我们研究了这种共生体的蜘蛛Pardosa pseudoannulata，一个重要的捕食稻飞虱，收集在中国8个地理区域的稻田。PCR检测结果表明，8个种群中有4个种群中存在砷螨。在这4个受砷螨感染的群体中，感染率在2.1%~ 16.7%之间，丽水（LS）群体与其他3个群体之间的感染率差异显著。研究还表明，在拟环纹青霉的2个种群中，砷螨与沃尔巴克氏体可以共存，不同地理区域的砷螨种群间遗传分化程度较低。
Infection of insect pests and their parasitoids with the facultative endosymbiont Arsenophonus has been well studied, whereas infection of insect pest predators with this symbiont has not been reported. Here, we studied this symbiont in the spider Pardosa pseudoannulata, an important predator of rice planthoppers, collected from rice paddies in 8 geographical regions in China. Diagnostic PCR showed that Arsenophonus was present in 4 of the 8 sampled populations of the spider. In these 4 populations infected with Arsenophonus, the infection incidence was between 2.1% and 16.7% and significantly differed between the Li Shui (LS) population and the other three populations. It also showed that Arsenophonus could coexist with Wolbachia in 2 populations of P. pseudoannulata, and Arsenophonus populations from different geographical regions exhibited low genetic differentiation.