Increased density of endosymbioticBuchnerarelated to pesticide resistance in yellow morph of melon aphid
文献类型： 外文期刊
作者： Guo, Shao-Kun 1 ; Gong, Ya-Jun 1 ; Chen, Jin-Cui 1 ; Shi, Pan 1 ; Cao, Li-Jun 1 ; Yang, Qiong 2 ; Hoffmann, Ary Anthon 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China
2.Univ Melbourne, Sch BioSci, Pest & Environm Adaptat Res Grp, Bio21 Inst, Parkville, Vic, Australia
关键词： Pesticide resistance; Aphis gossypii; Microbiome; Endosymbiont; Buchnera
期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：5.918； 五年影响因子：5.955 ）
ISSN： 1612-4758
年卷期： 2020 年 93 卷 4 期
页码：
收录情况： SCI
摘要： Many invertebrates develop into different color morphs in response to changes in environmental conditions. Color morphs can differ in their biology and stress tolerance including pesticide resistance, but underlying mechanisms are unclear. In this study, we found that yellow morphs (predominant in hot summer conditions) of an agricultural pest, the melon aphidAphis gossypii, have higher levels of resistance to the commonly used pesticides imidacloprid and sulfoxaflor compared to the green morphs (predominant in cooler spring and autumn conditions), while no difference was found in morph resistance to the antibiotic/pesticide avermectin. Transcriptome analysis and biochemical assays of enzyme activities revealed no differences in metabolic processes between the two color morphs except for differentially expressed genes related to wing development. Microbiome analysis revealed that the endosymbiontBuchnera aphidicolais the dominant bacterium in both morphs, representing 86.76-99.88% of the microbiome. The yellow morph had a higher density ofBuchneracompared to the green morph. When yellow morphs were treated with avermectin and antibiotics, the density ofBuchnerawas reduced to levels similar to the green morph, and their susceptibility to imidacloprid was simultaneously increased. These results indicate an association between resistance in the yellow morph ofA. gossypiiand symbiotic bacteria, providing novel insights into pesticide resistance mechanisms and the plasticity of stress adaptation.
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