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| 水稻大粒种质资源和遗传分析 | |
| 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 |
| 作者姓名： | 马丽莲 郭龙彪 钱前 |
| 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 |
| 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. |
| 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 | |
| Authors: | Lilian Ma Longbiao Guo Qian Qian |
| Affiliation: | 1. State Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006;2 Graduate School of Chinese Academy of Agricultural Sciences, Beijing 150030 |
| 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. |
| Keywords: | breeding genetic analysis large-grain germplasm rice |
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