Detection And Geographic Distribution Of S.even Facultative Endosymbionts In T wo Rhopalosiphum Aphid Species
文献类型: 外文期刊
作者: Poncelet, Nicolas;He, Kanglai;Liu, Xuewei;Wang, Zhenying;Guo, Jianqing;Guo, Jianqing;Guo, Jianqing;Francis, Frederic
作者机构:
关键词: cereal aphid; China; Europe; facultative endosymbiont; infection; Rhopalosiphum maidis; Rhopalosiphum padi
期刊名称: MICROBIOLOGYOPEN
ISSN: 2045-8827
年卷期: 2019 年 8 卷 8.0 期
页码:
收录情况: JCR(2021版)
摘要: Study of the mutualistic associations between facultative symbionts and aphids are developed only in a few models. That survey on the situation and distribution of the symbionts in a certain area is helpful to obtain clues for the acquisition and spread of them as well as their roles played in host evolution. To understand the infection patterns of seven facultative symbionts (Serratia symbiotica, Hamiltonella defensa, Regiella insecticola, Rickettsia, Spiroplasma, Wolbachia, and Arsenophonus) in Rhopalosiphum padi (Linnaeus) and Rhopalosiphum maidis (Fitch), we collected 882 R. maidis samples (37 geographical populations) from China and 585 R. padi samples (32 geographical populations) from China and Europe. Results showed that both species were widely infected with various symbionts and totally 50.8% of R. maidis and 50.1% of R. padi were multi-infected with targeted symbionts. However, very few Rhopalosiphum aphids were infected with S. symbiotica. The infection frequencies of some symbionts were related to the latitude of collecting sites, suggesting the importance of environmental factors in shaping the geographic distribution of facultative symbionts. Also, R. maidis and R. padi were infected with different H. defensa strains based on phylogenetic analysis which may be determined by host xsymbiont genotype interactions. According to our results, the ubiquitous symbionts may play important roles in the evolution of their host aphid and their impacts on adaptation of R. padi and R. maidis were discussed as well.
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