首页 | 本学科首页   官方微博 | 高级检索  
   检索      

马拉硫磷对中华稻蝗种群遗传结构的作用
引用本文:卢芙萍,李翠兰,段毅豪,郭亚平,马恩波.马拉硫磷对中华稻蝗种群遗传结构的作用[J].遗传,2004,26(5):663-668.
作者姓名:卢芙萍  李翠兰  段毅豪  郭亚平  马恩波
作者单位:1.山西大学生命科学与技术学院,太原 030006;2.山西大学环境与资源学院,太原 030006 1.College Of Life Science and Technology, Shanxi University, Taiyuan 030006, China; 2. Department of Environmental Science, Shanxi University, Taiyuan 030006, China
基金项目:国家自然科学基金,山西省自然科学基金
摘    要:将中华稻蝗(Oxya chinensis)注射1.5g/L的马拉硫磷,24h后死亡率为56%。用等位酶电泳确定死亡与存活个体在多态性基因座Pgm和Me上的基因型,并比较各基因型的死亡率差异。结果表明:在Pgm基因座上,马拉硫磷对具有不同基因型的中华稻蝗个体存在选择性致死作用,但是在Me基因座上未观察到类似选择性致死作用。在基因座Pgm上,Pgm-ab 基因型个体死亡率最高(80%),Pgm-bb和Pgm-bc基因型个体死亡率最低(49%),低于平均死亡率。卡方检验表明,基因型Pgm-bb和Pgm-cc的死亡率之间存在显著差异。在存活个体中,等位基因Pgm-b的频率显著增加。基于Roger’s遗传距离的聚类分析表明,马拉硫磷的急性致死作用会导致中华稻蝗种群遗传组成的变化。马拉硫磷是蝗虫防治中常用的杀虫剂,研究显示,不同基因型在死亡率上的差异也可能存在于田间。 Abstract: Allozyme electrophoresis was employed to compare the difference in mortality among the genotypes at two polymorphic loci of Pgm and Me of grasshopper Oxya chinensis individuals acutely exposed to 1.5g/L malathion which resulted in 56% mortality in 24 hours. The selective lethal effects were observed among the genotypes at Pgm locus but not at Me locus. It is noted that the genotype Pgm-ab experienced the highest mortality (80%), whereas Pgm-bb and Pgm-bc were 49%, lower than the average. The χ2 tests showed significant difference in morality between Pgm-bb and Pgm-cc. After exposure the allele frequency of Pgm-b showed a notable increase among surviving individuals. The cluster analysis based on Roger’s genetic distance indicated that the acute exposure to malathion can cause differentiation in genetic composition at population level in Oxya chinensis. Because malathion is commonly used as the insecticide for grasshopper control, the data obtained in this study suggest that the similar genotype-mortality effects may occur in crop fields.

关 键 词:马拉硫磷  中华稻蝗  等位酶  Key  words  种群遗传结构  死亡率差异  
文章编号:0253-9772(2004)05-0663-06
修稿时间:2003年7月21日

Impacts of Malathion on Population Genetic Structure of Oxya chinensis
LU Fu-Ping,LI Cui-Lan,DUAN Yi-Hao,GUO Ya-Ping,MA En-Bo.Impacts of Malathion on Population Genetic Structure of Oxya chinensis[J].Hereditas,2004,26(5):663-668.
Authors:LU Fu-Ping  LI Cui-Lan  DUAN Yi-Hao  GUO Ya-Ping  MA En-Bo
Institution:College of Life Science and Technology, Shanxi University, Taiyuan 030 006, China.
Abstract:Allozyme electrophoresis was employed to compare the difference in mortality among the genotypes at two polymorphic loci of Pgm and Me of grasshopper Oxya chinensis individuals acutely exposed to 1.5g/L malathion which resulted in 56% mortality in 24 hours. The selective lethal effects were observed among the genotypes at Pgm locus but not at Me locus. It is noted that the genotype Pgm-ab experienced the highest mortality (80%), whereas Pgm-bb and Pgm-bc were 49%, lower than the average. The chi(2) tests showed significant difference in morality between Pgm-bb and Pgm-cc. After exposure the allele frequency of Pgm-b showed a notable increase among surviving individuals. The cluster analysis based on Roger's genetic distance indicated that the acute exposure to malathion can cause differentiation in genetic composition at population level in Oxya chinensis. Because malathion is commonly used as the insecticide for grasshopper control, the data obtained in this study suggest that the similar genotype-mortality effects may occur in crop fields.
Keywords:malathion  Oxya chinensis  population genetic structure  mortality difference  allozyme
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《遗传》浏览原始摘要信息
点击此处可从《遗传》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号