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    饶得花,郭涛,王慧,刘永柱,张建国,陈志强. 籼稻半矮秆新突变体的遗传分析及对外源赤霉素的反应[J]. 华南农业大学学报, 2009, 30(1). DOI: 10.7671/j.issn.1001-411X.2009.01.006
    引用本文: 饶得花,郭涛,王慧,刘永柱,张建国,陈志强. 籼稻半矮秆新突变体的遗传分析及对外源赤霉素的反应[J]. 华南农业大学学报, 2009, 30(1). DOI: 10.7671/j.issn.1001-411X.2009.01.006
    shu
    RAO De-hua,GUO Tao,WANG Hui,LIU Yong-zhu,ZHANG Jian-guo,CHEN Zhi-qiang. Genetic Analysis of a Semidwarf Mutant in Indica Rice and the Response to Gibberellin[J]. Journal of South China Agricultural University, 2009, 30(1). DOI: 10.7671/j.issn.1001-411X.2009.01.006
    Citation: RAO De-hua,GUO Tao,WANG Hui,LIU Yong-zhu,ZHANG Jian-guo,CHEN Zhi-qiang. Genetic Analysis of a Semidwarf Mutant in Indica Rice and the Response to Gibberellin[J]. Journal of South China Agricultural University, 2009, 30(1). DOI: 10.7671/j.issn.1001-411X.2009.01.006
    shu

    籼稻半矮秆新突变体的遗传分析及对外源赤霉素的反应

    Genetic Analysis of a Semidwarf Mutant in Indica Rice and the Response to Gibberellin

      摘要
    • 摘要: 对空间诱变矮秆突变体CHA-2的遗传分析表明,其矮生性状是由2对隐性半矮秆基因控制的,分别为sd1和1个新的半矮秆基因,该基因初步定名为iga-1.从CHA-2与惠阳珍珠早杂交F2群体中选择半矮秆株与矮脚南特进行测交和自交,鉴定获得由半矮秆基因iga-1控制的新半矮秆株系H2.赤霉素敏感性试验表明,半矮秆株系H2对赤霉素敏感性下降,推测H2是属于赤霉素弱敏感矮化突变体.

       

      Abstract: Genetic analysis of the dwarf rice mutant CHA-2 by space mutation was studied.The results indicated that its dwarf trait was controlled by two recessive semi-dwarf genes without linkage,sd1 and a new nonallelic to sd1 gene named as iga-1.The new semidwarf plant H2 with the new iga-1 gene from a cross between Huiyangzhenzhuzao and CHA-2 was insensitive to exogenous gibberellin,so it was speculated that the H2 semi-dwarf mutant was the gibberellin insensitive dwarf mutant.

       

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