| 水稻苗期生长对缺磷响应的QTL定位 |
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| 引用本文： | 林冬枝,张永娟,张俊芝,罗利军,董彦君.水稻苗期生长对缺磷响应的QTL定位[J].广西农业生物科学,2010(1):10-16. |
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| 作者姓名： | 林冬枝 张永娟 张俊芝 罗利军 董彦君 |
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| 作者单位： | 上海师范大学生命与环境科学学院;上海市农业生物基因中心; |
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| 基金项目： | supported by National Natural Science Foundation of China (No.30971552);;Shanghai MunicipalEducation Commission of China (No. 06ZZ21);;Shanghai Municipal Science and Technology Commission of China (No.075405117; No.08PJ14085; 9391912300; 09DJ1400505);;Leading Academic Discipline Project of Shanghai Municipal Education Commission(No.J50401) |
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| 摘 要： | 缺磷是抑制全球水稻产量主要因素之一。本研究利用Asomonori（粳型）/IR24（籼型）杂交重组自交株系,对5个水稻苗期性状（相对苗高、相对根长、相对根重、相对苗重以及相对总重）在缺磷条件下的响应QTL进行定位。共检测到20个水稻苗期生长对缺磷响应的QTL位点,分别位于第1（4QTLs）、第4（4QTLs）、第5（2QTLs）、第7、第8（4QTLs）、第9（2QTLs）、第11（2QTLs）和第12号染色体上,其中13个QTLs位于与C3029C、XNpb302、C621B、C621C、R2976和C1263分子标记紧密连锁的6个基因组区域上。另外,每个性状均能从双亲中检测到正负效应QTL位点,这些能解释重组自交系群体中出现超亲和连续分布的现象。本文主要报道了水稻第5、第7和第11染色体上存在水稻苗期生长对缺磷响应的QTL位点。研究表明,该结果及其中检测到的QTLs两侧的连锁分子标记可用于水稻苗期耐低磷性分子育种。
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| 关 键 词： | QTL 缺磷 苗期生长 水稻 |
Mapping of QTL for Seedling Growth Response to Phosphorus Deficiency in Rice (Oryza sativa L.) |
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| Lin Dongzhi Zhang Yongjuan Zhang Junzhi Luo Lijun Dong Yanjun College of Life , Environment Sciences,Shanghai Normal University,Shanghai, Shanghai Agro-Biological Gene Center.Mapping of QTL for Seedling Growth Response to Phosphorus Deficiency in Rice (Oryza sativa L.)[J].Journal of Guangxi Agricultural and Biological Science,2010(1):10-16. |
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| Authors: | Lin Dongzhi Zhang Yongjuan Zhang Junzhi Luo Lijun Dong Yanjun College of Life Environment Sciences Shanghai Normal University Shanghai Shanghai Agro-Biological Gene Center |
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| Institution: | Lin Dongzhi 1 Zhang Yongjuan 1 Zhang Junzhi 1 Luo Lijun 2 Dong Yanjun 1 1 College of Life , Environment Sciences,Shanghai Normal University,Shanghai,200234,2 Shanghai Agro-Biological Gene Center,201106 |
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| Abstract: | Phosphorus (P) deficiency is one of major factors limiting rice yields worldwide. This study was conducted to map quantitative trait loci (QTL) responsible for the stress-induced alterations (stress/control ratios) in five seedling growth traits under P deficiency,viz.,relative seedling height (RSH),relative root length (RRL),relative root dry-weight (RRW),relative stem and leaf shoot dry-weight (RSW) and relative total dry-weight (RTW) of rice seedlings,representing their growth response to P deficiency us... |
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| Keywords: | QTL Phosphorus deficiency Seedling growth Rice |
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