The miR-184-3p promotes rice black-streaked dwarf virus infection by suppressing Ken in Laodelphax striatellus (Fallén)

文献类型： 外文期刊

第一作者： Wu, Wei

作者： Wu, Wei;Wang, Man;Deng, Zhiting;Xi, Minmin;Dong, Yan;Wang, Haitao;Zhang, Jianhua;Zhou, Yijun;Xu, Qiufang;Wu, Wei;Deng, Zhiting;Xi, Minmin;Wang, Changchun;Xu, Qiufang

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关键词： miR-184-3p; Laodelphax striatellus; rice black-streaked dwarf virus; Ken; virus infection

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.1； 五年影响因子：4.4 ）

ISSN： 1526-498X

年卷期： 2024 年 80 卷 4 期

页码：

收录情况： SCI

摘要： BACKGROUND: MicroRNAs (miRNAs) play a key role in various biological processes by influencing the translation of target messenger RNAs (mRNAs) through post-transcriptional regulation. The miR-184-3p has been identified as an abundant conserved miRNA in insects. However, less is known about its functions in insect-plant virus interactions.RESULTS: The function of miR-184-3p in regulation of plant viral infection in insects was investigated using a rice black-streaked dwarf virus (RBSDV) and Laodelphax striatellus (Fallen) interaction system. We found that the expression of miR-184-3p increased in L. striatellus after RBSDV infection. Injection of miR-184-3p mimics increased RBSDV accumulation, while treatment with miR-184-3p antagomirs inhibits the viral accumulation in L. striatellus. Ken, a zinc finger protein, was identified as a target of miR-184-3p. Knockdown of Ken increased the virus accumulation and promoted RBSDV transmission by L. striatellus.CONCLUSION: This study demonstrates that RBSDV infection induces the expression of miR-184-3p in its insect vector L. striatellus. The miR-184-3p targets Ken to promote RBSDV accumulation and transmission. These findings provide a new insight into the function of the miRNAs in regulating plant viral infection in its insect vector.(c) 2023 Society of Chemical Industry.

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