您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Variable resistance to spinetoram in populations of Thrips palmi across a small area unconnected to genetic similarity

文献类型： 外文期刊

作者： Shi, Pan 1 ; Guo, Shao-Kun 1 ; Gao, Yong-Fu 1 ; Cao, Li-Jun 1 ; Gong, Ya-Jun 1 ; Chen, Jin-Cui 1 ; Yue, Lei 1 ; Li, Hu 2 ; H 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China

2.China Agr Univ, Coll Plant Protect, Dept Entomol, Beijing, Peoples R China

3.China Agr Univ, Coll Plant Protect, MOA Key Lab Pest Monitoring & Green Management, Beijing, Peoples R China

4.Univ Melbourne, Sch BioSci, Bio21 Inst, Melbourne, Vic, Australia

关键词： dispersal; population genetic structure; resistance; spinetoram; Thrips palmi

期刊名称：EVOLUTIONARY APPLICATIONS （ 影响因子：5.183； 五年影响因子：5.725 ）

ISSN： 1752-4571

年卷期： 2020 年 13 卷 9 期

页码：

收录情况： SCI

摘要： The melon thrips, Thrips palmi, is an increasingly important pest of vegetables in northern China. Some populations have developed resistance in the field to the insecticide spinetoram. Understanding the origin and dispersal of insecticide-resistant populations can shed light on resistance management strategies. In this study, we tested susceptibility of seven greenhouse populations of T. palmi to spinetoram collected from a small area of about 300 km(2) in Shandong Province and examined population genetic structure across the area based on a segment of mitochondrial cox1 gene and 22 microsatellite loci to infer the possible origin and dispersal of insecticide resistance. Levels of resistance to spinetoram differed among seven populations, which included one population with high resistance (LC50 = 759.34 mg/L), three populations with medium resistance (LC50 ranged from 28.69 to 34.79 mg/L), and three populations with low resistance (LC50 ranged from 7.61 to 8.97 mg/L). The populations were genetically differentiated into two groups unrelated to both levels of resistance and geographic distance. The molecular data indicated high levels of gene flow between populations with different levels of resistance to spinetoram and low gene flow among populations with the same level of resistance, pointing to a likely separate history of resistance evolution. Resistance levels of two tested populations to spinetoram decreased 23 and 4.6 times after five generations without any exposure to the pesticide. We therefore suspect that resistance of T. palmi most likely evolved in response to local applications of the insecticide. Our study suggests that the development of resistance could be avoided or resistance even reversed by reducing usage of spinetoram.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台