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| 水稻功能基因标记遗传距离与杂种优势的相关性研究 | |
| 引用本文： | 张涛,倪先林,蒋开锋,杨乾华,杨莉,万先齐,曹应江,郑家奎.水稻功能基因标记遗传距离与杂种优势的相关性研究[J].中国水稻科学,2009,23(6):567-572. |
| 作者姓名： | 张涛 倪先林 蒋开锋 杨乾华 杨莉 万先齐 曹应江 郑家奎 |
| 作者单位： | 1. 四川省农业科学院,水稻高粱研究所,四川,德阳,618000;国家水稻改良中心四川泸州分中心,四川,泸州,646000 2. 四川省农业科学院,水稻高粱研究所,四川,德阳,618000;重庆大学,生物工程学院,重庆,400044 3. 四川省农业科学院,水稻高粱研究所,四川,德阳,618000 4. 四川省农业科学院,水稻高粱研究所,四川,德阳,618000;国家水稻改良中心四川泸州分中心,四川,泸州,646000;重庆大学,生物工程学院,重庆,400044 |
| 基金项目： | 农业部跨越计划资助项目，四川省"十一五"水稻育种攻关计划资助项目，四川省财政专项育种工程资助项目，四川省农业科学院青年基金资助项目，四川省天府英才创新团队建设计划资助项目 |
| 摘 要： | 利用与产量性状相关的功能基因标记分析了29个杂交水稻组合亲本间（18个不育系和11个恢复系）的遗传差异，结合29个亲本所配组合（47个）的F1表现，研究了功能基因标记遗传距离与杂种优势的相关性。结果表明，功能基因标记遗传距离与产量杂种优势呈显著正相关（r=0.29*），而与其他主要产量构成因素的杂种优势相关不显著。说明功能基因标记有可能应用于杂交水稻杂种优势预测，但得到的相关系数偏小，还不足以预测杂种优势。 |
| 关 键 词： | 水稻 微卫星标记 遗传距离 杂种优势 |
| 收稿时间： | 1900-01-01; |
Correlation Between Genetic Distance Based on Molecular Markers of Functional Genes and Heterosis in Rice |
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| ZHANG Tao,NI Xian-lin,JIANG Kai-feng,YANG Qian-hua,YANG Li,WAN Xian-qi,CAO Ying-jiang,ZHENG Jia-kui.Correlation Between Genetic Distance Based on Molecular Markers of Functional Genes and Heterosis in Rice[J].Chinese Journal of Rice Science,2009,23(6):567-572. | |
| Authors: | ZHANG Tao NI Xian-lin JIANG Kai-feng YANG Qian-hua YANG Li WAN Xian-qi CAO Ying-jiang ZHENG Jia-kui |
| Institution: | Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang 618000, China； Luzhou Branch of Chinese National Center for Rice Improvement, Luzhou 646000, China； College of Bioengineering, Chongqing University, Chongqing 400044, China; #These authors contributed equally to this paper； *Corresponding author， E-mail: zhen6102@126.com |
| Abstract: | The genetic difference among twenty-nine rice parents (eighteen cytoplasmic male sterile lines and eleven restorer lines) was analyzed by SSR molecular markers of functional genes related to yield traits. The correlation between genetic distance and heterosis was studied by reference to the performance of forty-seven combinations. The results showed that the correlation between the genetic distance and yield heterosis was significant(r=0. 29*). indicating the possibility of forecasting heterosis according to the genetic distance based on molecular markers of functional genes. The correlation between the genetic distance and the heterosis of other yield-related traits was insignificant. However, the correlation coefficient obtained in the study was too small to predict heterosis. |
| Keywords: | rice simple sequence repeats genetic distance heterosis correlation |
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