| 水稻大粒种质资源和遗传分析 |
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| 引用本文： | 马丽莲,郭龙彪,钱前.水稻大粒种质资源和遗传分析[J].植物学通报,2006,23(4):395-401. |
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| 作者姓名： | 马丽莲 郭龙彪 钱前 |
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| 作者单位： | 1. 中国水稻研究所国家水稻生物学重点实验室,杭州,310006;中国农业科学院研究生院,北京,150030
2. 中国水稻研究所国家水稻生物学重点实验室,杭州,310006 |
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| 摘 要： | 谷粒重量是构成产量的三要素之一,对提高水稻产量具有重要意义.本文概述了国内外水稻大粒种质资源的现状,同时对粒重基因遗传分析的研究进展进行了综述.粒重是一个受多基因控制的数量性状,目前定位的粒重数量性状位点至少达89个、精细定位1个粒重基因gw3.1和1个长粒基因Lk-4（t）以及克隆1个粒重基因GS3,并在此基础上讨论了粒重在育种上的应用.
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| 关 键 词： | 育种 遗传分析 大粒种质资源 水稻 |
| 收稿时间： | 2005-03-17 |
| 修稿时间： | 2005-05-30 |
Germplasm Resources and Genetic Analysis of Large Grain in Rice |
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| Lilian Ma,Longbiao Guo,Qian Qian.Germplasm Resources and Genetic Analysis of Large Grain in Rice[J].Chinese Bulletin of Botany,2006,23(4):395-401. |
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| Authors: | Lilian Ma Longbiao Guo Qian Qian |
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| Institution: | 1. State Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006;2 Graduate School of Chinese Academy of Agricultural Sciences, Beijing 150030 |
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| Abstract: | Grain-weight is a major determinant factor of rice yield.We summarized the current status of large-grain rice germplasm resources and recent progress in genetic analysis of grain-weight genes.Grain-weight is a complex quantitative trait controlled by multi-genes.So far,89 QTLs for grain-weight have been identified.A grain-weight gene gw3.1 and a grain-length gene Lk-4(t) have been fine-mapped and a grain-weight gene GS3 has been isolated.The breeding applications of grain-weight gene in rice are also discussed. |
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| Keywords: | breeding genetic analysis large-grain germplasm rice |
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