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    耿锐梅, 程立锐, 刘旦, 张兴伟, 蒋彩虹, 冯全福, 罗成刚, 陈志强, 王绍美, 曹长代, 张国超, 杨爱国, 任民. 烟草青枯病抗性遗传效应分析[J]. 中国烟草科学, 2019, 40(4): 7-13. DOI: 10.13496/j.issn.1007-5119.2019.04.002
    引用本文: 耿锐梅, 程立锐, 刘旦, 张兴伟, 蒋彩虹, 冯全福, 罗成刚, 陈志强, 王绍美, 曹长代, 张国超, 杨爱国, 任民. 烟草青枯病抗性遗传效应分析[J]. 中国烟草科学, 2019, 40(4): 7-13. DOI: 10.13496/j.issn.1007-5119.2019.04.002
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    GENG Ruimei, CHENG Lirui, LIU Dan, ZHANG Xingwei, JIANG Caihong, FENG Quanfu, LUO Chenggang, CHEN Zhiqiang, WANG Shaomei, CAO Changdai, ZHANG Guochao, YANG Aiguo, REN Min. Genetic Analysis of Resistance to Bacterial Wilt in Tobacco[J]. CHINESE TOBACCO SCIENCE, 2019, 40(4): 7-13. DOI: 10.13496/j.issn.1007-5119.2019.04.002
    Citation: GENG Ruimei, CHENG Lirui, LIU Dan, ZHANG Xingwei, JIANG Caihong, FENG Quanfu, LUO Chenggang, CHEN Zhiqiang, WANG Shaomei, CAO Changdai, ZHANG Guochao, YANG Aiguo, REN Min. Genetic Analysis of Resistance to Bacterial Wilt in Tobacco[J]. CHINESE TOBACCO SCIENCE, 2019, 40(4): 7-13. DOI: 10.13496/j.issn.1007-5119.2019.04.002
    shu

    烟草青枯病抗性遗传效应分析

    Genetic Analysis of Resistance to Bacterial Wilt in Tobacco

      摘要
    • 摘要: 烟草青枯病是由青枯菌引起的烟草细菌性病害，是危害我国烟草生产的主要病害之一，解析烟草青枯病的抗性遗传效应对指导抗病育种具有重要意义。本研究采用主基因+多基因混合遗传模型的多世代联合分析方法，以多个抗病/感病样本为亲本，构建了两个不同的杂交组合，进行群体遗传效应分析。结果表明，岩烟97的青枯病抗性由2对加性、显性、上位性主基因以及加性、显性、上位性多基因控制；反帝三号-丙的青枯病抗性受1对加性-显性基因+加性-显性-上位性多基因控制。烟草青枯病抗性以加性效应为主，兼有显性效应，有利于等位基因聚合育种及早代选择。

       

      Abstract: Tobacco bacterial wilt is a bacterial disease caused by Ralstonia solanacearum, and is one of the main diseases that harm China's tobacco production. Analysis of the resistance genetics of tobacco bacterial wilt has important significance in guiding disease resistance breeding. In this study, a multi-generation combined analysis method of the main gene + multi-gene mixed genetic model was used to construct two different hybrid combination groups for the analysis of population genetic effects with multiple resistance/susceptible materials as parents. The results showed that bacterial wilt resistance of tobacco appeared to be a quantitative trait and the inheritance of Yanyan 97 fit to a mixed genetic model of two major genes with additive-dominance-epistatic effects plus poly-genes with additive-dominance-epistatic effects. The inheritance of Fandi No.3-C fit to a mixed genetic model of one major gene with additive-dominance effects plus poly-genes with additive-dominance-epistatic effects. The results also indicated that tobacco bacterial wilt resistance is dominated by additive effects, which is supplemented by dominance effects, and is conducive to allele aggregation breeding and early generation selection.

       

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