| 水稻DH群体苗期耐低磷QTL分析 |
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| 引用本文： | 万丽玮,张文会,赵志超,张超,高瑞. 水稻DH群体苗期耐低磷QTL分析[J]. 广西农业科学, 2009, 40(11): 1393-1396 |
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| 作者姓名： | 万丽玮 张文会 赵志超 张超 高瑞 |
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| 作者单位： | 聊城大学生命科学学院,山东,聊城,252059 |
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| 基金项目： | 聊城大学大学生科技创新基金资助项目 |
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| 摘 要： | 利用栽培稻优良品种＂特青＂与元江普通野生稻配制的DH群体139个家系构建连锁图谱,采用蛭石进行水稻幼苗培养,待第2片叶完全展开时进行低磷（1/5P）胁迫处理;处理15d后,以苗期株高、鲜重及干重的平均抑制率作为考察水稻苗期耐低磷胁迫指标,用于QTL定位分析。结果表明,共检测到7个与低磷胁迫相关的QTL,分别位于第8、第9、第11及第12染色体上,即RM339和RM210（Chr 8）、RM105和RM201（Chr 9）、RM202和RM260（Chr 11）、RM277（Chr 12）均来源于野生稻的等位基因QTL位点,表现为耐低磷胁迫,贡献率为8%～20%,加性效应为37.53%～78.23%;RM339及RM105附近的QTL,加性效应及贡献率均较大,可能是主效QTL。
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| 关 键 词： | DH群体 水稻幼苗 耐低磷 QTL分析 |
Genetic analysis of QTLs for tolerance to low-phosphorus stress at seedling stage of rice DH population |
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| WAN Li-wei,ZHANG Wen-hui,ZHAO Zhi-chao,ZHANG Chao,GAO Rui. Genetic analysis of QTLs for tolerance to low-phosphorus stress at seedling stage of rice DH population[J]. Guangxi Agricultural Sciences, 2009, 40(11): 1393-1396 |
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| Authors: | WAN Li-wei ZHANG Wen-hui ZHAO Zhi-chao ZHANG Chao GAO Rui |
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| Affiliation: | WAN Li-wei,ZHANG Wen-hui,ZHAO Zhi-chao,ZHANG Chao,GAO Rui(College of Life Sciences,Liaocheng University,Liaocheng,Shandong 252059,China) |
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| Abstract: | The DH population consisted of 139 recombination lines,derived from the cross between common wild rice as the donor parent and fine varieties of cultivated rice(Teqing) as receipting parent,and their genetic linkage maps were employed to map QTLs controlling tolerant to low-phosphorus stress at the seedling stage by culturing the seedling in the low concentration of phosphorus(1 / 5P) on vermiculite.After 15 days of treatment,the average inhibition rate of seedling height,fresh and dry weights were recorded... |
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| Keywords: | DH group rice seedling low-phosphorus-tolerance analysis of quantitative trait loci(QTL) |
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