The Novel Agrotis ipsilon Nora Virus Confers Deleterious Effects to the Fitness of Spodoptera frugiperda (Lepidoptera: Noctuidae)
文献类型： 外文期刊
作者： Li, Tong 1 ; Guan, Ruobing 2 ; Wu, Yuqing 1 ; Chen, Su 3 ; Yuan, Guohui 1 ; Miao, Xuexia 3 ; Li, Haichao 2 ;
作者机构： 1.Henan Acad Agr Sci, Inst Plant Protect, Henan Key Lab Crop Pest Control, Key Lab Integrated Pest Management Crops Southern, Zhengzhou, Peoples R China
2.Henan Agr Univ, State Key Lab Wheat & Maize Crop Sci, Coll Plant Protect, Zhengzhou, Peoples R China
3.Chinese Acad Sci, Innovat Acad Seed Design, CAS Ctr Excellence Mol Plant Sci, Shanghai Inst Plant Physiol & Ecol,Key Lab Insect, Shanghai, Peoples R China
关键词： Agrotis ipsilon; Spodoptera frugiperda; Nora virus; virus genome; fitness
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）
ISSN：
年卷期： 2021 年 12 卷
页码：
收录情况： SCI
摘要： In the present study, we identified a novel, positive-sense single-stranded RNA virus in the Chinese black cutworm, Agrotis ipsilon. It has a genome length of 11,312 nucleotides, excluding the poly(A) tails, and contains five open reading frames. The ORF2 encodes the conserved domains of RNA helicase and RNA-dependent RNA polymerase, while ORF4 and 5 encode three viral proteins. Herein, the A. ipsilon virus was clustered with a Helicoverpa armigera Nora virus and was thus provisionally named "Agrotis ipsilon Nora virus" (AINV). AINV was successfully transmitted into a novel host, Spodoptera frugiperda, through injection, causing a stable infection. This found the possibility of horizontal AINV transmission among moths belonging to the same taxonomic family. Nonetheless, AINV infection was deleterious to S. frugiperda and mainly mediated by antiviral and amino acid metabolism-related pathways. Furthermore, the infection significantly increased the S. frugiperda larval period but significantly reduced its moth eclosion rate. It suggests that AINV is probably to be a parasitic virus of S. frugiperda.
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