华北农学报 ›› 2015, Vol. 30 ›› Issue (3): 192-199. doi: 10.7668/hbnxb.2015.03.033

所属专题: 小麦 生物技术

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小麦河农6251苗期抗叶锈病基因的鉴定

任晓娣1, 杜冬冬1, 张河山1, 姚宏鹏1, 赵赛1, 杨文香1,2, 刘大群1,2,3   

  1. 1. 河北农业大学 植物病理学系, 河北 保定 071001;
    2. 河北省农作物病虫害生物防治工程技术研究中心, 河北 保定 071001;
    3. 国家北方山区农业工程技术研究中心, 河北 保定 071001
  • 收稿日期:2015-02-20 出版日期:2015-06-28
  • 通讯作者: 杨文香(1966-),女,河北沧州人,教授,博士,博士生导师,主要从事分子植物病理学及植物病害生物防治研究;刘大群(1958-),男,河北石家庄人,教授,博士,博士生导师,主要从事分子植物病理学及植物病害生物防治研究。
  • 作者简介:任晓娣(1987-),女,河北邯郸人,硕士,主要从事分子植物病理学研究。
  • 基金资助:
    国家重点基础研究发展计划项目(2013CB127700);河北省现代农业产业体系小麦产业创新团队建设项目

Identification of Wheat Leaf Rust Resistance Gene in Henong 6251 at Seedling Stage

REN Xiao-di1, DU Dong-dong1, ZHANG He-shan1, YAO Hong-peng1, ZHAO Sai1, YANG Wen-xiang1,2, LIU Da-qun1,2,3   

  1. 1. Department of Plant Pathology, Agricultural University of Hebei, Baoding 071001, China;
    2. Biological Control Center of Plant Diseases and Plant Pests of Hebei Province, Baoding 071001, China;
    3. National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding 071001, China
  • Received:2015-02-20 Published:2015-06-28

摘要: 为明确河农6251含有的抗叶锈基因并对其进行分子定位,以抗病品种河农6251与感病品种Thatcher的杂种F1、F2、F3群体为材料,对河农6251的苗期抗叶锈基因进行定位。分子标记辅助鉴定结果表明,河农6251中含有抗叶锈基因 Lr26 LrZH84,可能含有 Lr2c Lr17a;遗传分析表明,河农6251对叶锈菌PBGP的抗性由1对显性抗病基因决定,暂命名为 LrH6;用SSR技术和分离群体分组法(BSA)分析河农6251 F2群体和F3家系,结果位于1B染色体的3个SSR标记wmc419、wms582和barc120与 LrH6 连锁,遗传距离分别为21.6,25.8,27.9 cM。河农6251中含有 Lr26LrZH84 等多个抗叶锈基因,其对PBGP的抗性由一对位于1BL染色体上的显性抗叶锈基因决定。

关键词: 小麦叶锈病, 抗病基因, SSR标记, 遗传分析, 遗传作图

Abstract: Preliminary research showed that they all contributed higher disease resistance level to Puccinia triticina.Detecting and mapping wheat leaf rust resistance gene were significance for application of the resistance in the wheat production.Resistant parents Henong 6251,susceptible parent Thatcher and their F2,F3 populations were employed to map the wheat leaf rust resistance genes in Henong 6251 based on SSR technique.Molecular marker-assisted identification results showed that Henong 6251 contained wheat leaf rust resistance genes Lr26 and LrZH84,and probably contained Lr2c and Lr17a.Henong 6251,Thatcher,and their Fl,F2 populations and F3 families were tested for detecting the wheat leaf rust resistance with single strain of Chinese P.triticina pathotype PBGP in greenhouse.The results showed that the wheat leaf rust resistance in Henong 6251 to PBGP was controlled by one dominant resistance gene,temporarily designated as LrH6.SSR molecular markers and BSA were used to test Henong 6251 and their resistant and susceptible bulks of F2 and F3 populations for mapping the leaf rust resistance gene.Results indicated that Henong 6251 carried a single dominant resistance gene LrH6 to PBGP,and was preliminary located on chromosome 1B.The resistance gene LrH6 was linked to the three known SSR loci(wmc419,wms582 and barc120)on the 1BL with genetic distance ranging 21.6,25.8,27.9 cM respectively.Henong 6251 contained more than one leaf rust resistance genes including Lr26 and LrZH84 and the wheat leaf rust resistance to PBGP was controlled by one dominant and new resistance gene.

Key words: Wheat leaf rust, Resistance gene, SSR marker, Genetic analysis, Genetic mapping

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引用本文

任晓娣, 杜冬冬, 张河山, 姚宏鹏, 赵赛, 杨文香, 刘大群. 小麦河农6251苗期抗叶锈病基因的鉴定[J]. 华北农学报, 2015, 30(3): 192-199. doi: 10.7668/hbnxb.2015.03.033.

REN Xiao-di, DU Dong-dong, ZHANG He-shan, YAO Hong-peng, ZHAO Sai, YANG Wen-xiang, LIU Da-qun. Identification of Wheat Leaf Rust Resistance Gene in Henong 6251 at Seedling Stage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(3): 192-199. doi: 10.7668/hbnxb.2015.03.033.

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