| 水稻突变体des2和des5的研究和定位(英文) |
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| 引用本文： | 赫圣博,何玮,陈红旗,朱旭东,杨军,胡筱荷,罗达.水稻突变体des2和des5的研究和定位(英文)[J].广西农业生物科学,2009(1). |
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| 作者姓名： | 赫圣博 何玮 陈红旗 朱旭东 杨军 胡筱荷 罗达 |
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| 作者单位： | 上海交通大学生命科学技术学院;中国科学院;中国科学院研究生院;上海生命科学研究院植物生理生态研究所植物分子遗传学国家重点实验室;中国农业科学院国家水稻研究所; |
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| 基金项目： | supported by the National High Technology Research and Development Program of China(2006AA10A102);;the National Key Project on Basic Sciences (2005CB120800) |
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| 摘 要： | 小穗发育是决定水稻产量的主要农艺性状,鉴定控制小穗发育的关键基因对研究和分析调控农艺性状的分子机理是至关重要的。本文中,我们鉴定了一组小穗数目明显减少的突变体,命名为decreased spikelets(des),这里详细研究des2和des5两个突变体。结果显示des2是由单基因隐性位点控制,图位克隆将此位点定位到6号染色体的长臂上,并最终克隆了此基因,发现des2是moc1的一个新的等位突变体。定位克隆和序列分析显示在des5中,LAX基因的编码HLH(螺旋-环-螺旋)结构域的区域发生了一个点突变,暗示des5是lax的一个新的等位突变体。我们的结果暗示小穗和水稻叶腋分枝的发育受相同的遗传途径调控。
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| 关 键 词： | 水稻突变体 des2 des5 特性分析 定位 |
Characterization and Mapping of Rice Mutants, des2 and des5 |
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| He Shengbo He Wei Chen Hongqi Zhu Xudong Yang Jun Hu Xiaohe Luo Da , School of Life Science , Biotechnology,Shanghai Jiaotong University,Shanghai, National Key Laboratory of Plant Molecular Genetics.Characterization and Mapping of Rice Mutants, des2 and des5[J].Journal of Guangxi Agricultural and Biological Science,2009(1). |
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| Authors: | He Shengbo He Wei Chen Hongqi Zhu Xudong Yang Jun Hu Xiaohe Luo Da School of Life Science Biotechnology Shanghai Jiaotong University Shanghai National Key Laboratory of Plant Molecular Genetics |
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| Affiliation: | He Shengbo 1* He Wei 2* Chen Hongqi 3 Zhu Xudong 3 Yang Jun 2 Hu Xiaohe 2 Luo Da 1,2**1 School of Life Science , Biotechnology,Shanghai Jiaotong University,Shanghai,200030,2 National Key Laboratory of Plant Molecular Genetics,Institute of Plant Physiology , Ecology,Shanghai Institutes for Biological Sciences,Graduate School of the Chinese Academy of Sciences,Chinese Academy of Sciences,200032,3 China National Rice Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou... |
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| Abstract: | Identification of key regulator genes in the control of spikelet development in panicle, one of the main agronomic traits to determine rice yield, is important to investigate the underlying molecular mechanism and provide the molecular basis for analysis of the agronomic traits. In this study, we have identified a group of mutants with conspicuous reduction of spikelet number, which are designated decreased spikelets (des). Two of the des mutants, des2 and des5, were analyzed in detail. We showed that a sin... |
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| Keywords: | Rice mutants des2 des5 Characterization Mapping |
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