高粱丝黑穗病抗源筛选及遗传多样性分析  

The Identification of Resistance Sources to Head Smut in Sorghum and the Analysis of Genetic Diversity

作　　者：杨慧勇[1] 王华云[1] 赵文博[1] 王瑞[1] 詹鹏杰[1] 于纪珍[1] 张福耀[1] 

机构地区：[1]山西省农业科学院高粱研究所,山西晋中030600

出　　处：《山西农业科学》2014年第12期1252-1255,1264,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省青年基金项目(2012021024-1);山西省农业科学院高粱研究所项目(GLS2013-4)

摘　　要：对37份高粱育种材料进行抗丝黑穗病鉴定,并利用微卫星分子标记技术进行遗传多样性分析,以获得高粱丝黑穗病抗源材料,同时利用分子标记辅助选择手段为抗病亲本的选择提供理论指导。结果表明,37份材料中,遗传距离（GD值）在0.115~0.513之间,抗病资源主要存在于印度材料（第1组）和美国材料（第2组）中。因此,今后在继续筛选抗病材料的同时,还需要对配合力高的育种材料（来源于我国）进行抗病基因（来源于印度和美国）的导入,来创建新的抗病种质,以进一步扩宽抗病亲本的选择范围,为今后杂交种选育奠定基础。To screen the resistance source materials, the head smut resistance of 37 sorghum varieties was identified in this paper,and the genetic diversity was analyzed by microsatellite molecular marker technology among the materials. The results showed that the genetic distance value among the 37 varieties was between 0.115 and 0.513, and the main resource was derived from the India materials and American materials. Therefore, choosing the resistance materials and importing the resistance genes to Chinese materials from India materials and American materials will be the main breeding work in future.

关 键 词：高粱 丝黑穗病 抗源 遗传多样性 

分 类 号：S514.034[农业科学—作物学]