两个小麦遗传群体不同年份和地点赤霉病抗性鉴定与比较  

Evaluation of Wheat Fusarium Head Blight Resistance in Two Genetic Populations in Different Years and Places

作　　者：陆维忠[1] 张旭[1] 黄昌[2] 方毅敏[3] 廖玉才[4] 周淼平[1] 李斌琪[2] 肖碧玉[3] 赵纯森[4] 

机构地区：[1]江苏省农业科学院农业生物遗传生理研究所,江苏南京210014 [2]江苏太湖地区农业科学研究所,江苏苏州215000 [3]福建省南平市农业科学研究所,福建建阳354200 [4]华中农业大学,湖北武汉430000

出　　处：《江苏农业学报》2002年第1期23-28,共6页Jiangsu Journal of Agricultural Sciences

基　　金：国家科技部 863计划项目 (BH 0 2 0 3 0 1) ;欧共体第四框架计划项目 (ERBIC18CT180 3 12 )

摘　　要：通过对两个小麦遗传群体 (“望水白”/“Alondra”和“苏麦 3号”/Alondra)在南京、苏州、建阳、武汉 4个地点连续两年 (1999～ 2 0 0 0年 )的抗赤性鉴定资料分析发现 ,抗、感性稳定品种的抗赤性以及遗传群体内个体抗、感趋势和病小穗率的频率分布均较一致。但无论是同一年份的不同地点间 ,还是同一地点的不同年份间 ,遗传群体内个体抗赤性的相关系数极小。这使小麦抗赤性分子标记的QTL分析受到影响。文章对抗赤性鉴定方法和抗赤性评价问题进行了讨论 。Two wheat genetic populations'Wangshuibai'/'Alondra' and 'Sumai 3'/Alondra were evaluated for wheat Fusarium head blight(FHB) resistance from 1999 to 2000 in Nanjing,Suzhou,Jianyang,and Wuhan respectively.Data showed correspondences on FHB resistance of lines possessing stable resistance or susceptibility before and on resistance distribution of individual in each population in different places and years.But poor correlation of individual FHB resistance was found either from different places in one year or from different years in one place,which would affect QTL analysis of FHB resistance using molecular maker technique.Inoculation techniques and evaluation methods of FHB resistance were discussed,and a reasonable evaluation method for molecular marker analysis of FHB resistance were also presented.

关 键 词：小麦 赤霉病 抗性鉴定 遗传群体 分子标记 抗性评价 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治] S512.103.4[农业科学—植物保护]