河北农业大学植物保护学院
国家重点基础研究发展计划(2013CB127700);国家重点研发计划项目(2017YFD0300906、2018YFD0300502);河北省小麦主要病虫害防控技术集成(18226512)
College of Plant Protection, Agricultural University of Hebe
National Key Basic Research Development Program(2013CB127700);National Key R&D Program of China(2017YFD0300906、2018YFD0300502); Integrated Control of Wheat Pests and Diseases in Hebei Province(18226512)
本研究利用 KHST、FHKT 和 FHJT 三个小麦叶锈菌混合菌株对 182 份小麦品种(系)进行苗期抗叶锈鉴定,对筛选出的抗性品种利用 15 个小麦叶锈菌生理小种进行基因推导,结合与 20 个抗叶锈基因连锁的 25 个分子标记进行抗叶锈基因分析。182 份小麦品种(系)中,14 个品种(泰科麦 5303、驻麦 305、豫圣麦 118、存麦 18 号、轩麦 6 号、农丰川、丹麦 118、郑麦 103、郑麦 119、赛德麦 5 号、郑麦 369、许科 918、豫麦 668 和 AF116-120)表现抗性,其余品种(系)均表现高感;基因推导结果显示,驻麦 305、存麦 18 号、农丰川、郑麦 119、赛德麦 5 号、郑麦 369、许科 918 含有抗叶锈基因 Lr33+34;郑麦 103 含有抗叶锈基因 Lr10 和 Lr33+34;AF116-120 含有抗叶锈基因 Lr10、Lr16、Lr20 和 Lr33+34;泰科麦 5303、豫圣麦118、丹麦 118 和豫麦 668 可能含有其他抗叶锈基因;分子检测结果显示,农川丰、轩麦 6 号、郑麦 103 和许科 918 含有抗叶锈基因 Lr1 和 Lr26;泰科麦 5303、豫圣麦 118、郑麦 119 和郑麦 369 含有抗叶锈基因 Lr1;驻麦 305、存麦 18 号和豫麦 668含有抗叶锈基因 Lr26;AF116-120 含有抗叶锈基因 Lr1 和 Lr2c;丹麦 118 含有抗叶锈基因 Lr26 和 Lr37。所检测小麦品种含抗叶锈基因丰富度低,缺乏有效抗叶锈基因。182 份黄淮海麦区小麦品种对小麦叶锈菌的抗病性及抗性品种中抗性基因组成 的分析,可以为该地区小麦品种推广、合理布局及叶锈病防治与抗病育种提供科学依据。
In this study, 182 wheat cultivars (lines) were tested for leaf rust resistance with mixed races of KHST, FHKT and FHJT of Puccinia triticina at seedling stage. Out of that, 14 cultivars (Taikemai5303, Zhumai305, Yushengmai118, Cunmai18, Xuanmai6, Nongfengchuan, Danmai118, Zhengmai103, Zhengmai119, Saidemai5, Zhengmai369, Xuke918, Yumai668 and AF116-120) were resistant, and the remaining cultivars (lines) were highly infected. By inoculation with 15 Pt pathotypes, which were used for clarifying Lr resistance genes, six cultivars including Zhumai 305, Cunmai 18, Nongfengchuan, Zhengmai 119, Saidemai 5, Zhengmai 369 and Xuke 918 were predicted to the carriers of leaf rust resistance genes Lr33+34. The leaf rust resistance in Zhengmai 103 was possibly caused by leaf rust resistance genes Lr10 and Lr33+34, while that of AF116-120 was possibly derived from leaf rust resistance genes Lr10, Lr16, Lr20 and Lr33+34. These cultivars including Taikemai 5303, Yushengmai118, Danmai 118 and Yumai 668 might contain other Lr genes. In addition, 25 molecular markers for 20 known Lr genes were further deployed for molecular-assisted identification. Lr1 and Lr26 were found to be present in cultivars Nongfengchuan, Xuanmai 6, Zhengmai 103 and Xuke 918, and Lr1 was detected in Taikemai 5303, Shengyumai 118, Zhengmai 119 and Zhengmai 369. Zhumai 305, Cunmai 18 and Yumai 668 carried Lr26; AF116-120 carried Lr1 and Lr2c; Danmai 118 carried Lr26 and Lr37. The results suggested that only few of wheat cultivars were found with Lr genes. Taken together, the results may lay scientistfic basis for the extension and rational distribution of cultivars, leaf rust control and wheat breeding of disease resistance in Huang-Huai-Hai wheat cultivating areas.
高颖,赵娜,赵雪芳,等.182 份黄淮海麦区小麦品种(系)苗期抗叶锈病基因分析[J].植物遗传资源学报,2019,20(5):1213-1222.
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