引用本文:唐运林, 顾偌铖, 吴燕燕, 邹祥明, 张祯, 牛小慧, 王泽乐, 陈洁, 李田, 李春峰, 韦俊宏, 潘国庆, 周泽扬.入侵重庆地区的草地贪夜蛾种群生物型鉴定[J].西南大学学报(自然科学版),2019,41(7):1~7
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入侵重庆地区的草地贪夜蛾种群生物型鉴定
唐运林, 顾偌铖, 吴燕燕, 邹祥明, 张祯, 牛小慧, 王泽乐, 陈洁, 李田, 李春峰, 韦俊宏, 潘国庆, 周泽扬1,2,3,4,5,6
1. 西南大学 家蚕基因组生物学国家重点实验室, 重庆 400715;2. 西南大学 农业部蚕桑生物学与遗传育种重点实验室, 重庆 400715;3. 西南大学 微孢子虫感染与防控重庆市重点实验室, 重庆 400715;4. 重庆市巫山县植保站, 重庆 巫山 404700;5. 重庆市种子管理站, 重庆 401121;6.6. 重庆师范大学 生命科学学院, 重庆 401331
摘要:
草地贪夜蛾是一种跨国迁飞性农业重大害虫,目前已在重庆的巫山、巫溪、云阳、北碚、潼南等地区出现并有迁飞的趋势.利用两个分子标记基因COITpi对重庆地区采集的样本进行遗传特征比较,结果表明COI基因的亚型全为"水稻型",而Tpi基因的亚型既有"水稻型"又有"玉米型",说明入侵到重庆地区的草地贪夜蛾来源可能并不单一,暗示了重庆地区的草地贪夜蛾有可能存在分化为"水稻型"的风险.分析了入侵重庆地区的草地贪夜蛾相关的遗传特征,其结果不仅有助于认识草地贪夜蛾在中国大面积迁飞过程中发生的种群差异变化,也有利于农业部门根据重庆地区的地理环境属性,开展有针对性的监测防控工作.
关键词:  重庆地区  草地贪夜蛾  单倍型  水稻型  玉米型
DOI:10.13718/j.cnki.xdzk.2019.07.001
分类号:S433.4;Q969.436.5
基金项目:中央高校基本科研业务费团队项目(XDJK2018AA001);家蚕基因组生物学国家重点实验室自设课题(2019-03).
Biotype Identification of the Population of Spodoptera frugiperda That Migrated to Chongqing Area
TANG Yun-lin, GU Ruo-cheng, WU Yan-yan, ZOU Xiang-ming, ZHANG Zheng, NIU Xiao-hui, WANG Ze-le, CHEN Jie, LI Tian, LI Chun-feng, WEI Jun-hong, PAN Guo-qing, ZHOU Ze-yang1,2,3,4,5,6
1. State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China;2. Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Chongqing 400715, China;3. Chongqing Key Laboratory of Microsporidia Infection and Control, Chongqing 400715, China;4. Plant Protection Station of Wushan, Wushan Chongqing 404700, China;5. Crop Seed Management Station of Chongqing, Chongqing 401121, China;6.6. College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
Abstract:
Fall armyworm (FAW, Spodoptera frugiperda) is one of the most important agricultural pests, which has a great flight capacity. This insect pest is native to tropical and subtropical regions of the Americas, but recently it has been detected in Wushan, Wuxi, Yunyang, Beibei, Tongnan and other areas of Chongqing. It prefers corn, but can feed on more than 80 additional species of plants, including rice, sorghum and others. In an experiment reported herein, we compared the genetic characteristics of the pest samples collected from Chongqing by using two molecular marker genes (COI and Tpi). The results showed that all the samples belonged to Rice-strain when COI was used as the marker, and both Corn-strain and Rice-strain were present when Tpi was used as the marker, which suggested that the source of S. frugiperda might be variable, and that there is a potential risk of S. frugiperda differentiating into Rice-strain. The analysis of the genetic characteristics of S. frugiperda in Chongqing is helpful to working out corresponding prevention and control measures in combination with the geographical and environmental features in Chongqing, and sheds more light on the understanding of the population differences during the large-scale migration and flight of S. frugiperda in China.
Key words:  Chongqing area  fall armyworm (FAW, Spodoptera frugiperda)  haplotype  rice-strain  corn-strain
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