| 分子标记辅助选择Pi9(t)基因培育杂交稻抗稻瘟病恢复系 |
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| 引用本文： | 曾正明,况浩池,罗俊涛,陈光珍,付均,杨扬,何兴材.分子标记辅助选择Pi9(t)基因培育杂交稻抗稻瘟病恢复系[J].山西农业大学学报(自然科学版),2011,31(4):338-342. |
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| 作者姓名： | 曾正明 况浩池 罗俊涛 陈光珍 付均 杨扬 何兴材 |
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| 作者单位： | 四川农科院水稻高粱研究所,国家水稻改良中心泸州分中心,四川德阳618000 |
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| 基金项目： | 四川省农业科学院优秀论文基金，四川省农业科学院青年基金 |
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| 摘 要： | 水稻抗稻瘟病基因Pi9(t)抗谱广、抗性强。以携带抗稻瘟病基因Pi9(t)的小粒野生稻Oryza minuta为抗源,以优良杂交稻恢复系泸恢17和泸恢602为受体亲本,通过杂交和复交,在分离群体中利用与Pi9(t)紧密连锁的标记PB8进行分子标记辅助选择,结合农艺性状选择,获得5份目标基因纯合且农艺性状优良的恢复材料。以四川近年来具有代表性的32个菌株对这5份材料进行抗性鉴定,其抗性频率达81.25%～87.50%;并对这5份材料进行了耐高温鉴定及配合力测定,最终培育出抗性较强、耐热、配合力较高的优良恢复系R102、R105。
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| 关 键 词： | 分子标记辅助选择 抗稻瘟基因Pi-9 恢复系 |
Enhancing Rice Blast Resistance of Hybrid Rice Restorer Lines through Marker Assisted Selection of the Pi-9 Gene |
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| ZENG Zheng-ming,KUANG Hao-chi,LUO Jun-tao,CHEN Guang-zhen,FU Jun,YANG Yang,HE Xing-cai.Enhancing Rice Blast Resistance of Hybrid Rice Restorer Lines through Marker Assisted Selection of the Pi-9 Gene[J].Journal of Shanxi Agricultural University,2011,31(4):338-342. |
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| Authors: | ZENG Zheng-ming KUANG Hao-chi LUO Jun-tao CHEN Guang-zhen FU Jun YANG Yang HE Xing-cai |
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| Institution: | ZENG Zheng-ming,KUANG Hao-chi,LUO Jun-tao,CHEN Guang-zhen,FU Jun,YANG Yang,HE Xing-cai(Rice and Sorghum Research Institute,Sichuan Academy of Agricultural Sciences,Luzhou Branch of National Rice Improvement Center,Deyang Sichuan 618000,China) |
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| Abstract: | Rice blast resistance gene Pi-9(t) has a broad spectrum of strong resistance.Oryza minuta that has Pi-9(t) gene was used as the anti-source,and excellent recovery system LH17 and LH 602 for the recipient parent.Through hybridization and resumption of diplomatic relations,PB8,which tightly linked to Pi9(t) was used for marker assisted selection in the separate groups.Combined with selection of the agronomic traits,five recovery materials with homoigous genes and good agronomic traits was obtained.Resistance ... |
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| Keywords: | Molecular marker·assisted selection Rice blast resistance Pi-9 gene Rice Restore |
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