首页> 外文会议>第8届国际储藏物气调与熏蒸大会(The 8th International Conference on Controlled Atmosphere and Fumigation in Stored Products) >Resistance and Genetic Differentiation of Rhyzopertha dominica to Phosphine among Different Geographical Populations in China: a Preliminary Study
【24h】

Resistance and Genetic Differentiation of Rhyzopertha dominica to Phosphine among Different Geographical Populations in China: a Preliminary Study

机译:中国不同地理种群白术对磷的抗性和遗传分化的初步研究

获取原文

摘要

In this article, the mortality effect of the most world's used fumigant, phosphine, was studied on one of the most important species of stored-product insect, the lesser grain borer Rhyzopertha dominica (Fabricius). In parallel, genetic differentiation among various resistant populations of R. dominica was investigated using amplified fragment length polymorphism (AFLP). The LC50 values from 6different geographical populations, showed values between 0.05 mg/L and 3.25 mg/L. The populations Banan, Chengdu, Shayang, Zhucheng, Yangchun, Xuchang were, respectively, the most sensitive to the most resistant. In addition, AFLP results using EcoR I/Hpa II and EcoR I/Msp I primers, separated populations into a phylogenetic tree. The dendogram obtained with the primers EcoR I/Msp I could be easily explained by a geographical hypothesis but the pattern obtained with EcoR I/Hpa Ⅱ primers could not. Two populations(Yangchun and Zhueheng) with distant geographical origins but with a high resistance to phosphine were clustered together. The influence of the phosphine treatment, and therefore, resistance of R. dominica to this insecticide, on the genes is one hypothesis resulting from this preliminary work.
机译:在本文中,研究了世界上最常用的熏蒸剂磷化氢对最重要的储藏昆虫之一,小bore虫Rhyzopertha dominica(Fabricius)的致死作用。平行地,使用扩增片段长度多态性(AFLP)研究了多米尼加不同抗性种群之间的遗传分化。来自6个不同地理种群的LC50值显示介于0.05 mg / L和3.25 mg / L之间的值。巴南,成都,沙阳,竹城,阳春,许昌的人口分别对最抗药性最敏感。另外,使用EcoR I / Hpa II和EcoR I / Msp I引物的AFLP结果将群体分离为系统发育树。用EcoR I / Msp I引物获得的树状图很容易通过地理假设来解释,但用EcoR I / HpaⅡ引物获得的图谱却不能。地理起源较远但对膦具有较高抗性的两个种群(阳春和Zhu横)聚集在一起。磷化氢处理的影响,以及多米尼加对这种杀虫剂的抗性,对基因的影响是这项初步工作得出的一个假设。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号