Control of two insect pests by expression of a mismatch corrected double-stranded RNA in plants
文献类型： 外文期刊
作者： Dong, Yi 1 ; Zhang, Qi 1 ; Mao, Yarou 1 ; Wu, Mengting 1 ; Wang, Zican 1 ; Chang, Ling 1 ; Zhang, Jiang 1 ;
作者机构： 1.Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Hubei Hongshan Lab, Wuhan, Peoples R China
2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Key Lab Synthet Biol, Minist Agr & Rural Affairs,Shenzhen Branch,Guangdo, Shenzhen, Peoples R China
关键词： transgenic plants; RNA interference; double-stranded RNA; Bemisia tabaci; Myzus persicae
期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：13.8； 五年影响因子：13.2 ）
ISSN： 1467-7644
年卷期： 2024 年
页码：
收录情况： SCI
摘要： RNA interference (RNAi) has emerged as an efficient technology for pest control by silencing the essential genes of targeted insects. Owing to its nucleotide sequence-guided working mechanism, RNAi has a high degree of species-specificity without impacts on non-target organisms. However, as plants are inevitably under threat by two or more insect pests in nature, the species-specific mode of RNAi-based technology restricts its wide application for pest control. In this study, we artificially designed an intermediate dsRNA (iACT) targeting two beta-Actin (ACT) genes of sap-sucking pests Bemisia tabaci and Myzus persicae by mutual correction of their mismatches. When expressing hairpin iACT (hpiACT) from tobacco nuclear genome, transgenic plants are well protected from both B. tabaci and M. persicae, either individually or simultaneously, as evidenced by reduced fecundity and suppressed ACT gene expression, whereas expression of hpRNA targeting BtACT or MpACT in transgenic tobacco plants could only confer specific resistance to either B. tabaci or M. persicae, respectively. In sum, our data provide a novel proof-of-concept that two different insect species could be simultaneously controlled by artificial synthesis of dsRNA with sequence optimization, which expands the range of transgenic RNAi methods for crop protection.
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