| 996/4628重组自交系群体开花期耐冷性评价及遗传分析 |
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| 引用本文： | 邓化冰,高燕,史建成,王天顺,肖应辉,陈立云.996/4628重组自交系群体开花期耐冷性评价及遗传分析[J].杂交水稻,2011,26(6). |
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| 作者姓名： | 邓化冰 高燕 史建成 王天顺 肖应辉 陈立云 |
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| 作者单位： | 1. 湖南农业大学水稻研究所,湖南长沙410128;袁隆平农业高科技股份有限公司,湖南长沙410001
2. 湖南农业大学水稻研究所,湖南长沙,410128 |
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| 基金项目： | 国家自然科学基金项目，湖南省自然科学基金项目，湖南农业大学作物种质创新与资源利用国家重点实验室培育基地开放基金项目，湖南农业大学作物栽培学与耕作学学科青年基金 |
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| 摘 要： | 连续2a利用人工气候室低温鉴定996/4628重组自交系群体开花期耐冷性并对其进行遗传分析,结果表明,以低温处理下结实率、结实率下降值和低温敏感指数3个指标为耐冷性评价指标对996/4628重组自交系F8群体和F1o群体进行耐冷性鉴定,各群体内株系间均存在极显著差异,但两群体的耐冷性差异不显著,说明重组自交系到第8代已稳定,且年际间耐冷性鉴定结果差异不显著.996/4628重组自交系群体的耐冷性呈连续分布,3个耐冷性评价指标的均值均介于2个亲本之间,说明996开花期耐冷性是由多基因控制的数量性状.
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| 关 键 词： | 水稻 重组自交系 开花期耐冷性 遗传分析 |
Evaluation of Cold Tolerance at Flowering Stage of the Populations of Recombinant Inbred Lines of 996/4628 and Its Genetic Analysis |
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| DENG Hua-bing,GAO Yah,SHI Jian-cheng,WANG Tian-shun,XIAO Ying-hui,CHEN Li-yun.Evaluation of Cold Tolerance at Flowering Stage of the Populations of Recombinant Inbred Lines of 996/4628 and Its Genetic Analysis[J].Hybrid Rice,2011,26(6). |
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| Authors: | DENG Hua-bing GAO Yah SHI Jian-cheng WANG Tian-shun XIAO Ying-hui CHEN Li-yun |
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| Institution: | DENG Hua-bing1,2,GAO Yan1,SHI Jian-cheng1,WANG Tian-shu n1,XIAO Ying-hui1,CHEN Li-yun1,*(1.Rice Research Institute,Hunan Agricultural University,Changsha,Hunan 410128,China,2.Yuan Long-ping High-Tech Agriculture Co.Ltd.,Chan gsha,Hunan 410001,China) |
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| Abstract: | The cold tolerance of two populations of reco mb inant inbred lines(RILs) of 996(cold tolerant)/4628(cold susceptible)(996/4628 RIL F8 and 996/4628 RIL F10,for short) was identified at flowering stag e under low temperatures in phytotron for two years in 2008 and 2009 and the gen etic behavior of the cold tolerance at flowering stage was analyzed.The results showed that,when the indices of the seed-setting rate under low temperature, reduced value of seed-setting rate and cold susceptibility index were used... |
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| Keywords: | rice recombinant inbred line flowering stage cold t olerance genetic analysis |
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