Screening of Brown Planthopper Resistant miRNAs in Rice and Their Roles in Regulation of Brown Planthopper Fecundity

查看全文 作　　者：[1]LÜJun;LIU [1]Jinhui;CHEN [1]Lin;SUN [1]Jiawei;SU [1]Qin;LI [1]Shihui;YANG [1]Jianhua;ZHANG [1]Wenqing

机构地区：[1]State Key Laboratory of Biocontrol,School of Life Sciences,Sun Yat-sen University,Guangzhou 510275,China

出　　处：《Rice science》索引2022年第29卷第6期,共13页

基　　金：supported by the Key Realm Research and Development Program of Guangdong Province,China (Grant No. 2020B0202090001);the Foundation of Guangzhou Science and Technology Key Project,China (Grant No. 201904020041) 摘　　要：MicroRNAs(miRNAs)can participate in plant-insect interactions,which regulate plant defense networks.In this study,we analyzed the miRNA expression profiles of six rice varieties before and after brown planthopper(BPH)-feeding.We identified 45 differentially expressed miRNAs between BPH-susceptible and BPH-resistant rice varieties and 144 miRNAs that responded to BPH-feeding.Thus,miRNAs may be involved in multiple pathways regulating rice defense response against BPH.In addition,we found that the genetic history of rice varieties determined the regulation mode of the miRNA and affected the amounts,types,changing trends and response periods of miRNAs in response to BPH-feeding.To conclude,we scanned seven potential cross-kingdom miRNAs,of which miR5795 may target the vitellogenin gene in BPH,causing a 16.07%reduction in BPH oviposition.The results provide new miRNA information of rice-BPH interactions and BPH-resistant rice variety breeding. 关键词：Nilaparvata lugens insect-resistant rice miR5795 FECUNDITY

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Screening of Brown Planthopper Resistant miRNAs in Rice and Their Roles in Regulation of Brown Planthopper Fecundity

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