Over-expression of CP9 and CP83 increases whitefly cell cuticle thickness leading to imidacloprid resistance

文献类型： 外文期刊

第一作者： He, Chao

作者： He, Chao;Liang, Jinjin;Yang, Jing;Xue, Hu;Huang, Mingjiao;Fu, Buli;Wei, Xuegao;Liu, Shaonan;Du, Tianhua;Ji, Yao;Yin, Cheng;Gong, Peipan;Hu, JinYu;Du, He;Zhang, Rong;Xie, Wen;Wang, Shaoli;Wu, Qingjun;Yang, Xin;Zhang, Youjun;Zhou, Xuguo

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关键词： Cuticular proteins; Bemisia tabaci; Expression patterns; Imidacloprid

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）

ISSN： 0141-8130

年卷期： 2023 年 233 卷

页码：

收录情况： SCI

摘要： Cuticular proteins (CPs) play an important role in protecting insects from adverse environmental conditions, like neonicotinoid insecticides, which are heavily used for numerous pests and caused environmental problems and public health concerns worldwide. However, the relationship between CPs and insecticides resistance in Bemisia tabaci, a serious and developed high insecticide resistance, is lacking. In this study, 125 CPs genes were identified in B. tabaci. Further phylogenetic tree showed the RR-2-type genes formed large gene groups in B. tabaci. Transcriptional expression levels of CPs genes at different developmental stages revealed that some CPs genes may play a specific role in insect development. The TEM results indicated that the cuticle thickness of susceptible strain was thinner than imidacloprid-resistance strain. Furthermore, 16 CPs genes (5 in RR-1 subfamily, 7 in RR-2 subfamily, 3 in CPAP3 subfamily and 1 in CPCFC subfamily) were activated in response to imidacloprid. And RNAi results indicated that CP9 and CP83 involved in imidacloprid resistance. In conclusion, this study was the first time to establish a basic information framework and evolutionary relationship between CPs and imida-cloprid resistance in B. tabaci, which provides a basis for proposing integrated pest management strategies.

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