Genomic divergences between the two polyphagous Spodoptera relatives provide cues for successful invasion of the fall armyworm

作     者：Yong Cui Yan-Dong Ren Mo Lyu Si-Chun Zheng Qi-Li Feng Hui Xiang Yong Cui;Yan-Dong Ren;Mo Lyu;Si-Chun Zheng;Qi-Li Feng;Hui Xiang

作者机构：Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied TechnologyGuangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina Center for Ecological and Environmental SciencesNorthwestern Polytechnical UniversityXi’anChina Guangzhou Panyu Central HospitalGuangzhouChina 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2020年第27卷第6期

页      面：1257-1265页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 

主　　题：chorion protein invasion positive selection sensory perception Spodoptera frugiperda Spodoptera litura 

摘      要：The fall armyworm Spodoptera frugiperda recently invaded China,ravaging crops in many *** the possible genetic basics for its successful invasion is critical for innovative and specific control for this gluttonous *** we generated comparative genomic analyses between *** and its native relative,***,which differs in host preference,locomotivity and production *** demonstrated that *** genes are enriched in taste sensory perception and nervous system,obv iously difTerent from those of *** host adaptation genes showed generally an elevated ratio of non-synonymous substitution rate to synonymous substitution rate,suggesting a faster evolution during the divergence of the two *** on these sets of genes,we identified 23 genes being under positive selection in *** them are two notable genes involved in sensory perception,gustatory receptor(GR)and an acetaldehyde oxidase,which are important for host detection in invasion and expansion *** two genes are mitochondrial adenosine triphosphate synthase^subunit and ferritin heavy chain,which may be associated with the enhanced locomotivity and resistance,which fascinated long-distance migration needed for invasion and rapid *** interesting gene is chorion protein,in which positive selection sites in *** were found and a replacement in one site is predicted to affect the protein function,which might be associated with competent reproductivity in *** to ensure genetic resources for expansion.