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Shao Y, Ding JH, Miao WL, Wang YR, Pei MM, Sheng S, Gui ZZ. microRNA Targeting Cytochrome P450 Is Involved in Chlorfenapyr Tolerance in the Silkworm, Bombyx mori (Lepidoptera: Bombycidae). INSECTS 2025; 16:515. [PMID: 40429228 PMCID: PMC12112709 DOI: 10.3390/insects16050515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2025] [Revised: 04/29/2025] [Accepted: 05/09/2025] [Indexed: 05/29/2025]
Abstract
We first measured the content of chlorfenapyr and tralopyril in silkworm larvae using HPLC, revealing that chlorfenapyr can be biotransformed into tralopyril in silkworms. Then, a differential transcriptomic database of small RNA was constructed through Illumina RNA-Sequencing. qRT-PCR was conducted to determine the expression levels of Bmo-miR-6497-5p and the target CYP450 gene, and Bmo-miR-6497-5p was significantly upregulated in the L3 silkworm larvae 24, 48, and 72 h after they were treated with chlorfenapyr. Furthermore, the target P450 gene CYP337A2 was downregulated at these time points. Dual-luciferase validation revealed that the luciferase activity significantly decreased after Bmo-miR-6497-5p bound to CYP337A2. In addition, miRNA mimics/inhibitor injection and bioassays of chlorfenapyr and tralopyril revealed that the mortality of third silkworm larvae injected with the antagomir of Bmo-miR-6497-5p was significantly increased after exposure to a sublethal concentration of chlorfenapyr. These results imply that Bmo-miR-6497-5p targets CYP337A2, regulating its expression. Also, silkworms increase their tolerance to chlorfenapyr by upregulating Bmo-miR-6497-5p expression, thereby inhibiting the biotransformation of chlorfenapyr to toxic tralopyril catalyzed by CYP337A2. The present study reveals the function of microRNA in silkworm tolerance to chlorfenapyr and improves understanding regarding insecticide resistance in Lepidopteran insects.
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Affiliation(s)
- Ying Shao
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
| | - Jian-Hao Ding
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
| | - Wang-Long Miao
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
| | - Yi-Ren Wang
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
| | - Miao-Miao Pei
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
| | - Sheng Sheng
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
| | - Zhong-Zheng Gui
- Jiangsu Key Laboratory of Sericultural and Animal Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (Y.S.); (J.-H.D.); (W.-L.M.); (Y.-R.W.); (M.-M.P.); (S.S.)
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, The Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212100, China
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Ren Y, Dong W, Chen J, Xue H, Bu W. Identification and function of microRNAs in hemipteran pests: A review. INSECT SCIENCE 2024. [PMID: 39292965 DOI: 10.1111/1744-7917.13449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 08/16/2024] [Accepted: 08/20/2024] [Indexed: 09/20/2024]
Abstract
Hemiptera is one of the most significant orders of insect pests, including whiteflies, true bugs, aphids, planthoppers, psyllids, and so forth, which have led to substantial economic losses in agricultural industries and have significantly affected food yields through their ability to suck the phloem sap of crops and transmit numerous bacterial and viral pathogens. Therefore, explorations of pest-specific, eco-friendly and easy-to-adopt technologies for hemipteran pest control are urgently needed. To the best of our knowledge, microRNAs (miRNAs), which are endogenous non-coding small RNAs approximately 22 nucleotides in length, are involved in regulating gene expression via the direct recognition and binding of the 3'-untranslated region (3'-UTR) of target messenger RNAs (mRNAs) or by acting as a center of a competitive endogenous RNA (ceRNA) network at the post-transcriptional level. This review systematically outlines the characterization and functional investigation of the miRNA biogenesis pathway in hemipteran pests, such as whiteflies, true bugs, aphids and planthoppers. In addition, we explored the results of small RNA sequencing and functional observations of miRNAs in these pests, and the results suggest that the numerous miRNAs obtained and annotated via high-throughput sequencing technology and bioinformatic analyses contribute to molting development, fitness, wing polyphenism, symbiont interactions and insecticide resistance in hemipteran pests. Finally, we summarize current advances and propose a framework for future research to extend the current data and address potential limitations in the investigation and application of hemipteran miRNAs.
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Affiliation(s)
- Yipeng Ren
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenhao Dong
- Tianjin Key Laboratory of Food and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, China
| | - Juhong Chen
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Huaijun Xue
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
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Zhang B, Jiang Y, Cui L, Hu G, Chen D, Ji X, Li T, Peng Y, Xiong Y, Kong F, Liu R. Overexpression of SmUGGT1 Confers Imidacloprid Resistance to Sitobion miscanthi (Takahashi). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17824-17833. [PMID: 39088303 DOI: 10.1021/acs.jafc.4c02431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
Sitobion miscanthi, the main species of wheat aphids, is one kind of harmful pest. Chemical insecticides are the important agrochemical products to effectively control wheat aphids. However, the broad application has led to serious resistance of pests to several insecticides, and understanding insecticide resistance mechanisms is critical for integrated pest management. In this study, SmUGGT1, a new uridine diphosphate (UDP)-glycosyltransferase (UGT) gene, was cloned and more strongly expressed in the SM-R (the resistant strain to imidacloprid) than in the SM-S (the susceptible strain to imidacloprid). The increased susceptibility to imidacloprid was observed after silencing SmUGGT1, indicating that it can be related to the resistance to imidacloprid. Subsequently, SmUGGT1 regulated post-transcriptionally in the coding sequences (CDs) by miR-81 was verified and involved in the resistance to imidacloprid in S. miscanthi. This finding is crucial in the roles of UGT involved in insecticide resistance management in pests.
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Affiliation(s)
- Baizhong Zhang
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi 458030, China
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yutai Jiang
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Lingling Cui
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Guilei Hu
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Dongmei Chen
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Xiang Ji
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi 458030, China
| | - Tianzi Li
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi 458030, China
| | - Yuyang Peng
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi 458030, China
| | - Yunshan Xiong
- Hebi Institute of Engineering and Technology, Henan Polytechnic University, Hebi 458030, China
| | - Fanbin Kong
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Runqiang Liu
- College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
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