基于全线粒体基因组的草地贪夜蛾系统地位探究及其防控建议

草地贪夜蛾Spodoptera frugiperda是一种重要的世界性害虫,2019年1月传入我国云南。草地贪夜蛾可以为害玉米、高粱、水稻等350余种植物,给我国农林生产带来巨大威胁。随着测序技术的飞速发展,全线粒体基因组越来越多地被应用到昆虫学研究领域。本研究以灯蛾科2种昆虫作为外群,基于全线粒体基因组数据,重建了夜蛾科22种昆虫的系统发育关系,对草地贪夜蛾的系统发育地位进行了探究。研究结果发现草地贪夜蛾与斜纹夜蛾和甜菜夜蛾的亲缘关系最近,与斜纹夜蛾构成姐妹群关系。研究结果为未来的草地贪夜蛾的防控研究提供了理论基础,同时为草地贪夜蛾的防控方法提出了一些建议。

The phylogenetic position of Spodoptera frugiperda based on the complete mitochondrial genome and advices on its prevention & control

Spodoptera frugiperda, a very important worldwide pest, invaded to Yunnan province in January 2019. This pest endangers about 350 species of plants and brought great threats to our agroforestry production. With the rapid development of sequencing technology, the complete mitochondrial (mt) genome has been increasingly applied in the studies of Entomology. The phylogenetic relationships of 22 species from Noctuidae had been reconstructed based on the complete mitochondrial genomes using two species of Arctiidae as outgroup in this study. The phylogenetic relationships among S. frugiperda, S. litura and S.exigua were closer with S.frugiperda being sister group of S.litura. This study provided theoretical basis as well as some methods for prevention & control of S. frugiperda.