| 一个新的水稻半矮化小穗突变体的遗传分析与基因定位 |
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| 引用本文： | 汪庆,汪得凯,陶跃之. 一个新的水稻半矮化小穗突变体的遗传分析与基因定位[J]. 中国水稻科学, 2011, 25(6): 677-680. DOI: 10.3969/j.issn.1001 7216.2011.06.017 |
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| 作者姓名： | 汪庆 汪得凯 陶跃之 |
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| 作者单位： | 浙江师范大学化学与生命科学学院;浙江省农业科学院作物与核技术利用研究所;无锡求是生物农业有限公司; |
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| 基金项目： | 浙江省自然科学基金重点项目(Z3110509); 国家转基因生物新品种科技重大专项(2008ZX08010-002) |
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| 摘 要： | 从粳稻中花 11转基因后代中发现了一个半矮化小穗突变体，表现为植株半矮化、生长势弱、半包茎穗、穗型变小等特点，将其命名为sd sp2(semi dwarf and small panicle 2)。遗传分析显示，该突变体表型受1对隐性核基因控制。以sd sp2突变体为母本与龙特甫B杂交构建F2分离群体，将该基因定位在水稻第6染色体的RH6 32和RH6 40之间的116 kb的物理距离内。通过水稻基因组注释系统在此区域预测到14个开放阅读框，未发现与已报道穗型发育相关基因的同源基因。
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| 关 键 词： | 水稻 半矮化 小穗 突变体 基因定位 |
| 收稿时间： | 2010-12-22; |
Genetic Analysis and Gene Mapping of a New Semi-Dwarf and Small Panicle Mutant in Rice |
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| WANG Qing,,,WANG De-kai,TAO Yue-zhi. Genetic Analysis and Gene Mapping of a New Semi-Dwarf and Small Panicle Mutant in Rice[J]. Chinese Journal of Rice Science, 2011, 25(6): 677-680. DOI: 10.3969/j.issn.1001 7216.2011.06.017 |
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| Authors: | WANG Qing WANG De-kai TAO Yue-zhi |
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| Affiliation: | WANG Qing1,2,3,WANG De-kai2,TAO Yue-zhi1,(1College of Chemistry and Life Sciences,Zhejiang Normal University,Jinhua 321004,China,2Institute of Crop and Nuclear Technology Utilization,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,3Wuxi Qiushi Bio-Agricultural Co.,Ltd.) |
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| Abstract: | A semi-dwarf and small panicle mutant was obtained from a japonica rice variety Zhonghua 11 through T-DNA transformation.The mutant,characterized by semi-dwarf plant,abnormal small and semi-enclosed panicle,and poor growth potential was designated as sd-sp2(semi-dwarf and small panicle 2).Genetic analysis indicated that the mutant was controlled by a single recessive gene.A genetic linkage map was constructed using an F2 mapping population derived from a cross between the sd-sp2 mutant and an indica variety... |
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| Keywords: | rice semi-dwarf small panicle mutant gene mapping |
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