Retinoid X receptor 1 is a specific lethal RNAi target disturbing chitin metabolism during hatching of Tetranychus cinnabarinus

文献类型： 外文期刊

第一作者： Shen, Guang-Mao

作者： Shen, Guang-Mao;Ma, Ting;Chen, Xing-Ru;Chen, Li;Liu, Guang-Ming;He, Lin;Luo, Yan-Jie;Adang, Michael

作者机构：

关键词： Tetranychus cinnabarinus; RNAi control; RXR; Chitinase

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 245 卷

页码：

收录情况： SCI

摘要： RNA interference (RNAi) can be developed as an alternative method of chemical pesticides for pest control. In this study, we noticed a specifically expressed gene (retinoid X receptor 1, TcRXR1) in the egg stage of T. cinnabarinus. RNAi was applied to investigate the function of TcRXR1. Results showed that with continuous feeding of dsTcRXR1, the larvae of T. cinnabarinus could still successfully develop to adult, which was in accordance with the low expression of TcRXR1 out of egg stage. High mortality of eggs was observed after eggs were treated with dsTcRXR1. To investigate the downstream genes of TcRXR1, the RNA samples after successful RNAi of TcRXR1 were analyzed by transcriptome analysis. According to function annotation of differentially expressed genes, 6 genes were selected for their potential function with the phenotype of dsTcRXR1, and among them, a chitinase gene (TcCHT-E) attained a high expression level in the late stage of egg, peaking just after the expression peak of TcRXR1. Mortality of eggs was observed under the effect of dsTcCHT-E as well as dsTcRXR1. In conclusion, TcRXR1 is a specific RNAi target for control of T. cinnabarinus, and its lethal mechanism might be disturbing chitin metabolism hatching of egg.

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