Hu Zhongwen, Yang Fangyuan, Zhang Deping, Zhang Shimeng, Yu Xiaofei, Yang Maofa
Guizhou Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture and Rural Affairs, Guizhou University, Guiyang 550025, China.
Science and Technology Department, China National Tobacco Corporation Guangxi Zhuang Autonomous Region Company, Nanning 530022, China.
Animals (Basel). 2023 Feb 5;13(4):560. doi: 10.3390/ani13040560.
Population genetic structure is strongly affected by dispersal events, especially for migratory species. The investigation of population structure is therefore conducive to increasing our understanding of species dispersal. (Fabricius) (Lepidoptera: Noctuidae) is an important tobacco pest in China causing serious damage to multiple crops. In this study, we explore its dispersal dynamics by clarifying the fine-scale population genetics using 545 samples collected from tobacco plantations at 24 locations (mainly in Baise, Hechi, and Hezhou, Southern China). We analyzed the genetic diversity, genetic structure, and gene flow of these populations using seven microsatellite loci. Our results revealed high genetic diversity and low population genetic structure among . The genetic distance was uncorrelated with geographical distance, indicating the complete randomness of dispersal among the local populations. Our results suggest that the movement scope of contemporary might be much higher than the local-level spatial scale, which will provide a theoretical basis for pest management.
种群遗传结构受到扩散事件的强烈影响，特别是对于迁徙物种而言。因此，对种群结构的研究有助于增进我们对物种扩散的理解。（夜蛾科昆虫）在中国是一种重要的烟草害虫，对多种作物造成严重损害。在本研究中，我们通过使用从24个地点（主要位于中国南方的百色、河池和贺州）的烟草种植园中采集的545个样本，阐明精细尺度的种群遗传学，来探索其扩散动态。我们使用七个微卫星位点分析了这些种群的遗传多样性、遗传结构和基因流。我们的结果揭示了（夜蛾科昆虫）种群间的高遗传多样性和低种群遗传结构。遗传距离与地理距离不相关，表明当地种群间扩散具有完全随机性。我们的结果表明，当代（夜蛾科昆虫）的移动范围可能远高于地方尺度的空间范围，这将为害虫管理提供理论依据。
