大麦黄花叶病抗性及其对农艺性状的影响研究  

A Study on Barley Resistance to Yellow Mosaic Disease and its Impact on Barley Agronomic Traits

作　　者：李秀丽[1] 李赢 李建波 吕超[2] 郭宝健[2] 许如根[2] 

机构地区：[1]江苏大中农场农科所,江苏大丰224135 [2]扬州大学江苏省作物遗传生理国家重点实验室培育点/粮食作物现代产业技术协同创新中心,教育部植物功能基因组学重点实验室,扬州大学大麦研究所,江苏扬州225009

出　　处：《大麦与谷类科学》2017年第5期1-7,共7页Barley and Cereal Sciences

基　　金：国家自然科学基金项目(31571648);国家大麦青稞产业技术体系建设专项(CARS-05);江苏高校优势学科建设工程项目

摘　　要：以抗病品种泰兴9425与感病品种NasoNijo杂种F_1花药培养构建的188个加倍单倍体(doubled haploid,DH)及其亲本为材料,在拔节期进行大麦黄花叶病抗性鉴定,在大麦成熟后考查株高、主穗长、穗下节间长、单株穗数、单株粒数、单株产量及千粒质量共7个农艺性状,并对群体的黄花叶病抗性及其对大麦农艺性状的影响进行分析。结果表明:不同参试材料间黄花叶病抗性存在显著的遗传差异。以病害流行梯度下面积(AUDPS)为指标进行聚类分析,将参试材料分为抗病、中抗、中感和感病4个类群。研究发现AUDPS与大麦株高、单株穗数、千粒质量及单株产量间均呈极显著负相关,相关系数分别为-0.70、-0.38、-0.62和-0.65,表明黄花叶病对参试材料的株高、单株穗数、千粒质量和单株产量等农艺性状有较大的影响。本研究结果可为大麦黄花叶病抗性品种选育提供理论基础。This study assessed the resistance to yellow mosaic disease in the Chinese barley landrace‘Taixing 9425＇and the Japanese beer barley variety‘Naso Nijo＇as well as 188 doubled haploid（DH） lines derived from the cross of‘Taixing 9425＇and‘Naso Nijo＇.At the same time, their agronomic traits were measured, which consisted of plant height, main spike length, inter-node length under ear, ear number per plant, grain yield per plant, and thousand-grain weight. The results showed that the tested materials differed substantially in resistance to yellow mosaic disease. AUDPS clustering analysis divided them into four groups with varying levels of resistance to yellow mosaic disease： highly resistant varieties, moderately resistant varieties, moderately sensitive varieties, and highly sensitive varieties. The AUDPS of yellow mosaic disease was found to have a great impact on plant height, ear number per plant, grain yield per plant, and thousand-grain weight, which had significantly negative correlation with AUDPS, with the correlation coefficients of-0.70,-0.38,-0.62 and-0.65, respectively. The present study lays foundations for breeding varieties with resistance to yellow mosaic disease.

关 键 词：大麦 黄花叶病 AUDPS值 聚类分析 农艺性状 

分 类 号：S435.123[农业科学—农业昆虫与害虫防治]