普通小麦-华山新麦草易位系H9020-1-6-8-3抗条锈病基因的遗传分析和SSR标记  

Genetic analysis and molecular mapping of stripe rust resistance of wheat translocation line H9020-1-6-8-3 derived from Psathyrostachys huashanica Keng

作　　者：刘佩[1] 杨敏娜[1] 周新力[1] 吴会杰[1] 井金学[1] 

机构地区：[1]西北农林科技大学植物保护学院陕西省农业分子生物学重点实验室,杨凌712100

出　　处：《植物病理学报》2008年第1期104-107,共4页Acta Phytopathologica Sinica

基　　金：教育部长江学者和创新团队发展计划资助项目(200558);国家自然科学基金项目(30771397);省攻关项目(2005K02-G01-01)

摘　　要：It have proved that wheat translocation line H9020-1-6-8-3 derived from Psathyrostachys huashanica Keng is an important resistant resource to stripe rust.To confirm the existence of resistant genes,it was crossed with susceptible cultivar MingXian 169 as male and female parent,respectively.Seedlings of parents and F2 progeny were tested for resistance to selected CY29 of races of Puccinia striiformis f.sp.tritici from China.H9020-1-6-8-3 had one dominant resistant gene which temporarily named YrHs,whatever it was male or female parent.By using BSA method,two markers,Xgwm261 and Xgwm455 located on 2DL were found.The distance to YrHs were 4.3 and 5.8 cM respectively.The result could be used in molecular-assisted breeding.It have proved that wheat translocation line H9020-1-643-3 derived from Psathyrostachys huashanica Keng is an important resistant resource to stripe rust. To confirm the existence of resistant genes, it was crossed with susceptible cultivar MingXian 169 as male and female parent, respectively. Seedlings of parents and F2 progeny were tested for resistance to selected CY29 of races of Puccinia striiformis f. sp. tritici from China. H9020-1-643-3 had one dominant resistant gene which temporarily named YrHs, whatever it was male or female parent. By using BSA method, two markers, Xgwm261 and Xgwm455 located on 2DL were found. The distance to YrHs were 4.3 and 5.8 cM respectively. The result could be used in molecularassisted breeding.

关 键 词：抗条锈病基因 SSR标记 华山新麦草 遗传分析 普通小麦 易位系 真菌病害 抗病基因 

分 类 号：S512.1[农业科学—作物学] S513