Postulation of Leaf Rust Resistance Genes in Seven Chinese Spring Wheat Cultivars

来源 :Journal of Integrative Agriculture | 被引量 : 0次 | 上传用户:xiezhen120
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
To detect the leaf rust resistance genes in the 7 Chinese spring wheat clultivars Shenmian 99025, Shenmia 99042, Shenmian 85, Shenmian 91, Shenmian 96, Shenmian 1167 and Shenmian 962, Thatcher, Thatcher backgrounded near-isogenic lines and 15 pathotypes of P. triticina were used for gene postulate at the seedling stage, and 9 of the 15 pathotypes were used in the field tests. Molecular markers closely linked to, or co-segregated with resistance genes Lr1, Lr9, Lr10, Lr19, Lr20, Lr21, Lr24, Lr26, Lr28, Lr29, Lr32, Lr34, Lr35, Lr37, Lr38, and Lr47 were screened to assist detection of the resistance genes. As results, 4 known resistance genes, including Lr1, Lr9, Lr26, and Lr34, and other unknown resistance genes were postulated singly or in combination in the tested cultivars. Shenmian 85, Shenmian 91, Shenmian 96, Shenmian 962, Shenmian 1167, and Shenmian 99042 are potentially useful for wheat production and breeding programs. The result suggested that combining gene postulation, molecular markers and pedigrees is effective and more accuracy method to know the resistance genes in cultivars. To detect the leaf rust resistance genes in the 7 Chinese spring wheat clultivars Shenmian 99025, Shenmia 99042, Shenmian 85, Shenmian 91, Shenmian 96, Shenmian 1167 and Shenmian 962, Thatcher, Thatcher backgrounded near-isogenic lines and 15 pathotypes of P. triticina were used for gene postulate at the seedling stage, and 9 of the 15 pathotypes were used in the field tests. Molecular markers closely linked to, or co-segregated with resistance genes Lr1, Lr9, Lr10, Lr19, Lr20, Lr21, Lr24, Lr26, Lr28, Lr29, Lr32, Lr34, Lr35, Lr37, Lr38, and Lr47 were screened to assist detection of the resistance genes. As results, 4 known resistance genes, including Lr1, Lr9, Lr26, and Lr34, and other unknown resistance genes were postulated singly or in combination in the tested cultivars. Shenmian 85, Shenmian 91, Shenmian 96, Shenmian 962, Shenmian 1167, and Shenmian 99042 are potentially useful for wheat production and breeding programs. The result suggested that combining gene postulation, lar markers and pedigrees is effective and more accuracy method to know the resistance genes in cultivars.
其他文献
要想跻身于世界强队之林,并能常在国际重大比赛中取得优异成绩,就必须建立一个比较完善的足球运动员训练培养组织体制和制定出行之有效的强化培养对策,并且保障球队有更多的
目的:探讨彩色多普勒超声在剖宫产术后子宫切口妊娠( CSP )诊断和治疗中的应用价值。方法选择CSP患者35例(观察组),采用piliph超声诊断仪对患者行阴道彩色多普勒超声检查,观察子宫、
目的:分析健康教育干预对降低胃镜检查患者术前焦虑的价值。方法76例胃镜检查患者,采用数字表法随机分为观察组、对照组,每组38例。两组均实施常规护理,在此基础上观察组采用健康
目的:比较宫颈环形电极切除术( LEEP )与微波治疗宫颈炎的临床疗效。方法选择慢性宫颈炎患者77例,采取数字表法将患者随机分为两组,对照组37例接受微波治疗,观察组40例接受LEEP治疗
目的:分析某综合医院平均住院日等主要住院指标的管理效果。方法收集2007-2012年某院平均住院日等指标的年度数据计算Pearson相关系数,2010-2012年间各项指标的每月数据绘制时
目的 分析讨论完善医院内部控制的财务管理措施,以提高医院财务会计内部控制的管理水平.方法 通过分析讨论医院内部控制的财务管理的现状、存在的问题等,从而提出整改措施及
目的设计原代骺板软骨细胞的高效分离法,并对骺板软骨细胞的体外培养进行初步观察.方法改良设计以1 g/L的胰蛋白酶/1g/L的乙二胺四乙酸(EDTA)、1g/L的透明质酸酶和2g/L的Ⅰ型
Wheat is an important source of essential minerals for human body. Breeding wheat with high grain mineral concentration thus benefits human health. The objectiv
Spatial and temporal expression patterns of Sbe1 and Sbe2 that encode starch branching enzyme (SBE) I and II, respectively, in sweet potato (Ipomoea batatas L.)
Grain physicochemical properties determine the table quality of fresh waxy maize. Two waxy maize varieties, Suyunuo 5 (shading tolerant) and FHN003 (shading sen