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首页> 中文期刊> 《作物学报》 >14个小麦品种(系)抗叶锈性分析

14个小麦品种(系)抗叶锈性分析

         
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摘要

The objective of this study was to detect resistance genes to leaf rust in 14 wheat cultivars or lines. The resistance of the 14 wheat cultivars or lines was investigated at seedling and adult stages, and the resistance genes at seedling stage were postulated by inoculating 16 races of Puccinia triticina. Further validation was conducted by using 21 molecular markers cosegregated with or closely linked to the known Lr genes. According to the results of both phenotypic identification and molecular marker data, the information of the resistance genes in the 14 cultivars or lines was obtained. Genes Lr3a, Lr28 and Lr50 were postulated in S98351-2-2-2-1. Gene Lr37 was possibly carried by 9629-03A-4-1-1. Lr26 was present in 97167-1-2-1-1-2-1, 919-20-2c2, 9589, Mianzhong 438, 9916-8-6, and 9916-8-18. Lr28 was possibly present in 96104-l-5-lc2. Lrl was contained in 00-55-3-1-1. Lr24, Lr3 7, andLr38 were possibly in 1 Rl 3. Lr24 and Lr38 were possibly carried by 1 R1 7. Gene Lrl 0 and Lr34 were detected in 1R35, and Lr3a and Lr50 were also postulated in 1R35. Besides, 9524-1-2-2-1 might contain unknown or untested resistance genes against P. Triticina pathotypes. Genes Lr9, Lrl9, Lr20, Lr21, Lr29, Lr35, and Lr42 were not present in all cultivars or lines. The results indicate that these cultivars and lines carry diverse resistance genes to wheat leaf rust, and can be used as resistance resource for resistance breeding.%选用16个小麦叶锈菌菌系对14个小麦品种(系)进行抗叶锈性鉴定和苗期抗叶锈基因推导,初步分析这些品种(系)的抗性和携带的抗病基因;进一步利用21个与Lr基因紧密连锁或共分离的分子标记,对这14个品种(系)中可能含的抗叶锈基因进行鉴定.结果表明,s98351-2-2-2-1可能含Lr3a、Lr28和Lr50;9629-03A-4-1-1可能含Lr37;97167-1-2-1-1-2-1、919-20-2c2、9589、免中438、9916-8-6和9916-8-18含Lr26;96104-1-5-1c2可能含Lr28;00-55-3-1-1含Lr1;1R13可能含Lr24、Lr37和Lr38;1R17可能含Lr24和Lr38;1R35含Lr10和Lr34,还可能含Lr3a和Lr50;9524-1-2-2-1含未知抗叶锈基因或本试验使用的已知抗病基因以外的抗叶锈基因.所有品种(系)均不含Lr9、Lr19、Lr20、Lr21、Lr29、Lr35、Lr42和Lr47基因.测试的14个品种(系)中有比较丰富的抗叶锈病基因,可为育种提供丰富的抗源.

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  • 来源
    《作物学报》 |2011年第12期|2158-2166|共9页
  • 作者

    胡亚亚; 张娜; 李林懋; 杨文香; 刘大群;

  • 作者单位

    河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心/国家北方山区农业工程技术研究中心,河北保定,071001;

    河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心/国家北方山区农业工程技术研究中心,河北保定,071001;

    河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心/国家北方山区农业工程技术研究中心,河北保定,071001;

    河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心/国家北方山区农业工程技术研究中心,河北保定,071001;

    河北农业大学植物病理学系/河北省农作物病虫害生物防治工程技术研究中心/国家北方山区农业工程技术研究中心,河北保定,071001;

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  • 正文语种 chi
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  • 关键词

    小麦叶锈; 抗病基因; 基因推导; 分子标记辅助选择;

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