RNA Interference in the Egg Parasitoid, Trichogramma dendrolimi Matsumura

文献类型： 外文期刊

第一作者： Zhang, Long-Xi

作者： Zhang, Long-Xi;Dong, Qian-Jin;Yang, Shuai;Che, Wu-Nan;Zhou, Jin-Cheng;Dong, Hui;Zhang, Li-Sheng;Zhou, Jin-Cheng

作者机构：

期刊名称：JOVE-JOURNAL OF VISUALIZED EXPERIMENTS （ 影响因子：1.2； 五年影响因子：1.6 ）

ISSN： 1940-087X

年卷期： 2023 年 201 期

页码：

收录情况： SCI

摘要： The egg parasitoids, Trichogramma spp, are recognized as efficient biological control agents against various lepidopteran pests in agriculture and forests. The immature stages of Trichogramma offspring develop within the host egg, exhibiting remarkable diminutiveness (approximately 0.5 mm in adult length). RNA-interference (RNAi) methodology has emerged as a crucial tool for elucidating gene functions in numerous organisms. However, manipulating RNAi in certain small parasitoid species, such as Trichogramma, has generally posed significant challenges. In this study, we present an efficient RNAi method in Trichogramma denrolimi. The outlined procedure encompasses the acquisition and isolation of individual T. dendrolimi specimens from host eggs, the design and synthesis of double-stranded RNA (dsRNA), the in vitro transplantation and cultivation of T. dendrolimi pupae, the micro-injection of dsRNA, and the subsequent assessment of target gene knockdown through RT-qPCR analysis. This study furnishes a comprehensive, visually detailed procedure for conducting RNAi experiments in T. dendrolimi, thereby enabling researchers to investigate the gene regulation in this species. Furthermore, this methodology is adaptable for RNAi studies or micro-injections in other Trichogramma species with minor adjustments, rendering it a valuable reference for conducting RNAi experiments in other endoparasitic species.

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