| 萝卜优异种质对芜菁花叶病毒抗性的遗传分析 |
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| 引用本文： | 李红双,李锡香,沈镝,杨宇红,邱杨,王海平,龚慧芝. 萝卜优异种质对芜菁花叶病毒抗性的遗传分析[J]. 植物遗传资源学报, 2010, 11(2): 152-156 |
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| 作者姓名： | 李红双 李锡香 沈镝 杨宇红 邱杨 王海平 龚慧芝 |
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| 作者单位： | 中国农业科学院蔬菜花卉研究所,北京,100081 |
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| 摘 要： | 为了深入认识萝卜优异种质对芜菁花叶病毒(TuMV)的抗性遗传机制,本研究以高抗TuMV的自交系Q07-12(P_1)和高感自交系KB07-10(P_2)为亲本,构建了包括P_1、P_2、F_1、B_1、B_2及F_2的6个群体,采用数量性状主基因+多基因混合遗传的六世代联合分析法,对其抗性遗传规律进行了研究。结果表明,萝卜对TuMV的抗性受两对主基因控制,并符合"加性-显性-上位性主基因+加性-显性-上位性多基因"模型,其中主基因遗传率在B_1、B_2及F_2群体中分别为89%、55%和95%,多基因的遗传率分别为0、40.9%和0,环境因素对抗性强弱的影响较小。此结果表明了该优异种质在萝卜抗病毒遗传改良中的利用价值,为萝卜抗病育种和抗病基因的挖掘提供了理论依据。
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| 关 键 词： | 萝卜 TuMV 抗病性 遗传分析 |
Genetic Analysis of the Resistance to TuMV in Elite Radish Germplasm |
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| LI Hong-shuang,LI Xi-xiang,SHEN Di,YANG Yu-hong,QIU Yang,WANG Hai-ping,GONG Hui-zhi. Genetic Analysis of the Resistance to TuMV in Elite Radish Germplasm[J]. Journal of Plant Genetic Resources, 2010, 11(2): 152-156 |
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| Authors: | LI Hong-shuang LI Xi-xiang SHEN Di YANG Yu-hong QIU Yang WANG Hai-ping GONG Hui-zhi |
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| Affiliation: | LI Hong-shuang,LI Xi-xiang,SHEN Di,YANG Yu-hong,QIU Yang,WANG Hai-ping,GONG Hui-zhi (Institute of Vegetables , Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081) |
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| Abstract: | In order to further understand the genetic mechanism on the resistance to turnip mosaic virus (TuMV) in elite radish germplasm,the inheritance was analyzed by applying the joint segregation analysis of a mixed genetic model of major gene plus polygene in six generations(P_1,P_2,F_1,B_1,B_2 and F_2) from the cross between highly resistant inbred line Q07- 12(P_1 ) and highly susceptible line KB07-10(P_2).The inheritance of resistance to TuMV was fitted by the two major genes plus polygenes mixed model(E mode... |
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| Keywords: | TuMV Radish TuMV Resistance Genetic analysis |
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