华北农学报 ›› 2014, Vol. 29 ›› Issue (6): 68-72. doi: 10.7668/hbnxb.2014.06.013

所属专题: 小麦 生物技术

• 论文 • 上一篇    下一篇

温敏雄性不育小麦SCT-1育性主基因+多基因遗传模型分析

郑建敏1, 蒲宗君1, 李式昭1, 李俊1, 杨恩年1, 孙华2, 刘培3   

  1. 1. 四川省农业科学院 作物研究所, 农业部西南地区小麦生物学与遗传育种重点实验室, 四川 成都 610066;
    2. 四川省南部县农牧业局, 四川 南部 637300;
    3. 四川省农业科学院 农产品加工研究所, 四川 成都 610066
  • 收稿日期:2014-09-08 出版日期:2014-12-28
  • 通讯作者: 蒲宗君(1970-),男,四川南部人,研究员,博士,主要从事小麦遗传和抗性育种研究。
  • 作者简介:郑建敏(1982-),男,福建南平人,助理研究员,硕士,主要从事小麦资源利用与遗传育种研究。
  • 基金资助:
    省财政基因工程专项资金项目;四川省杰出青年基金项目(2012JQ0066);“863”计划(2011AA10A106);“十二五”国家支撑计划项目(2011BAD35B03);四川省青年科技创新研究团队项目(2014TD0014)

The Mixed Genetic Analysis of Thermo-sensitive Male Sterility of SCT-1 in Wheat

ZHENG Jian-min1, PU Zong-jun1, LI Shi-zhao1, LI Jun1, YANG En-nian1, SUN Hua2, LIU Pei3   

  1. 1. Crop Research Institute, Science and Technology Sichuan Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Breeding in Wheat(Southwest), Ministry of Agriculture, Chengdu 610066, China;
    2. Agriculture and Animal Bureau of Nanbu County, Nanbu 637300, China;
    3. Institute of Agro-products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
  • Received:2014-09-08 Published:2014-12-28

摘要: 研究温敏雄性不育系SCT-1在四川生态环境下的育性遗传特征,为其应用提供理论依据。选用2个具一定恢复效果的品系B2183、M2003-1,分别与SCT-1杂交构建群体,利用亲本、F1及F2群体的表型数据,采用主基因+多基因遗传模型对SCT-1育性遗传特性进行分析。结果表明:SCT-1育性主要受核基因控制,2个组合F2育性均呈连续分布,具多峰、偏态现象,SCT-1/B2183组合育性遗传符合MX2-AD-AD模型,即2对加性-显性主基因+加性-显性多基因模型;SCT-1/M2003-1组合符合MX1-AD-ADI模型,即1对加性-显性主基因+加性-显性-上位性多基因模型;2个组合中主基因遗传率分别为92.89%,91.19%,主基因对育性恢复的影响较大。聚合多个主基因的恢复材料对SCT-1杂交育种利用更为有利。

关键词: 小麦温敏不育, 主基因+多基因遗传模型, 育性, 遗传率

Abstract: In this research we try to explore the genetic characteristics of thermo-sensitive male sterility line SCT-1 in Sichuan ecological condition,in order to provide a theoretical guidance for its utilization and lay a foundation for the further breeding.We chosed two different restore lines to make the two crosses (SCT-1/B2183,SCT-1/M2003-1),investigated the self-setting seed in 4 populations of 2 parents (P1 and P2),F1 and F2 to analyses genetic characteristics of sterility by the mixed major gene plus poly-genes genetic model method.Results showed that the genetic model MX2-AD-AD (two additive-dominance major genes plus additive-dominance poly-genes) was the most suitable model for the cross SCT-1/B2183,while MX1-AD-ADI(one additive-dominance major genes plus additive-dominance-epitasis poly-genes) model was better fit the cross SCT-1/M2003-1.Major-gene heritability of the two different crosses was 92.89% and 91.19% respectively.Major-genes have important influence in fertility,we could cultivate good restore line by converge different major-gene.

Key words: Thermo-sensitive male sterility in wheat, Major gene plus poly-genes genetic model, Fertility, Heritability

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引用本文

郑建敏, 蒲宗君, 李式昭, 李俊, 杨恩年, 孙华, 刘培. 温敏雄性不育小麦SCT-1育性主基因+多基因遗传模型分析[J]. 华北农学报, 2014, 29(6): 68-72. doi: 10.7668/hbnxb.2014.06.013.

ZHENG Jian-min, PU Zong-jun, LI Shi-zhao, LI Jun, YANG En-nian, SUN Hua, LIU Pei. The Mixed Genetic Analysis of Thermo-sensitive Male Sterility of SCT-1 in Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(6): 68-72. doi: 10.7668/hbnxb.2014.06.013.

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