摘要
草地贪夜蛾Spodoptera frugiperda是一种全球性重大农业入侵害虫,自2018年入侵中国以来,已迅速扩散至全国主要粮食产区,严重威胁粮食安全。本文系统综述了草地贪夜蛾生物型分化与种群遗传多样性研究进展。草地贪夜蛾害虫主要分为玉米型和水稻型两种生物型,其中入侵中国种群以玉米型为主,但存在广泛杂交现象,导致传统分子标记(如COⅠ和Tpi)鉴定结果不一致,亟需开发高精度分子标记技术。种群遗传分析显示,中国境内草地贪夜蛾遗传多样性较低,但随种群扩散和杂交事件增加呈上升趋势。我国入侵种群主要经由缅甸、越南等东南亚国家迁入,形成“南进北扩”的扩散格局。在适应性进化方面,草地贪夜蛾通过基因家族扩张(如细胞色素P450酶基因、谷胱甘肽S-转移酶基因等)增强了解毒代谢能力和环境适应性,对抗药性形成和寄主转移具有重要影响。本文进一步讨论了以上研究成果在草地贪夜蛾综合治理中的应用前景,指出未来研究应整合多组学技术与高精度分子标记,深入解析其环境适应与抗性机制,并加强国际合作平台和数据共享,推动建立全球范围的监测与治理协作平台,为实现草地贪夜蛾的可持续治理提供科学依据。
The fall armyworm,Spodoptera frugiperda,is a globally significant invasive pest that has spread rapidly across China’s major grain-producing regions since it was first detected in 2018,and that now poses a severe threat to national food security.This review systematically summarizes recent advances in research on the biotypes and population genetic diversity of the S.frugiperda,and discusses the implications of this research for the integrated pest management(IPM)of this species.Previous research indicates that the S.frugiperda in China is primarily comprised of corn and rice strains.Invasive populations are predominately the corn strain,but there is widespread hybridization between the two strains.This hybridization leads to inconsistent identification using conventional molecular markers(e.g.,COⅠ and Tpi),highlighting the need for alternative,more definitive,molecular techniques.Genetic analyses reveal that there was low initial genetic diversity in Chinese S.frugiperda populations,but that this increased over time due to migration and hybridization.Invasive populations mainly originate from Southeast Asia(e.g.,Myanmar and Vietnam),and follow an“advance southward and expand northward”expansion pattern.Adaptive evolution,including the expansion of gene families such as CYP450 and GST,has enhanced the environmental adaptability of the species,including its ability to detoxify pesticides,contributing to the development of insecticide resistance and host shift potential.Future research should integrate multi-omic technology and high-resolution markers to elucidate the mechanisms underlying these kinds of adaptation and resistance,and establish an international genomic platform to support sustainable management strategies against the S.frugiperda.
作者
刘明秀
杨韵
李向永
尹艳琼
陈福寿
张红梅
王燕
刘莹
LIU Ming-Xiu;YANG Yun;LI Xiang-Yong;YIN Yan-Qiong;CHEN Fu-Shou;ZHANG Hong-Mei;WANG Yan;LIU Ying(Key Laboratory of Green Prevention and Control of Agricultural Transboundary Pests of Yunnan Province,Institute of Agricultural Resources and Environment,Yunnan Academy of Agricultural Sciences,Kunming 650205,China)
出处
《应用昆虫学报》
北大核心
2025年第5期1575-1589,共15页
Chinese Journal of Applied Entomology
基金
云南省农业联合专项(202301BD070001-045)
国家自然科学基金(32202366)
云南省基础研究专项(202201AS070067)
云南省“兴滇人才”计划项目。
关键词
草地贪夜蛾
生物型
遗传多样性
入侵生物学
综合治理
Spodoptera frugiperda
biotype
genetic diversity
invasion biology
integrated pest management
