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Position: Home > Articles > QTL Analysis of Grain Shape Traits in Different Environments Chinese Journal of Rice Science 2004,18 (1)

不同环境条件下稻谷粒形数量性状的QTL分析

作  者:
张光恒;张国平;钱前;徐律平;曾大力;滕胜;包劲松
单  位:
浙江华农有限公司;中国水稻研究所水稻生物学国家重点实验室;浙江大学农业与生物技术学院农学系
关键词:
水稻;粒型;加倍单倍体群体;数量性状基因座位;环境
摘  要:
以窄叶青 8号和京系 17构建的加倍单倍体群体为材料 ,系统分析了稻谷粒长、粒宽及长宽比 3个性状在北京、杭州、海南 3个不同环境下的表现 ,并进行了数量性状基因位点的比较定位。检测结果表明 ,3个环境下共检测到 18个QTLs,分布于水稻第 1、2、3、4、6、8和 12染色体上 ,其中与粒长性状相关QTL 3个 ,LOD值为 2 .6 9~ 4 .75 ,贡献率为 9.9%~18.4 % ;与粒宽性状相关QTL 9个 ,LOD值为 2 .4 3~ 5 .77,贡献率为 8.4 %~ 2 5 .6 % ;与长宽比性状相关QTL 6个 ,LOD值为 2 .4 4~ 6 .0 2 ,贡献率为 9.8%~ 2 2 .7%。
译  名:
QTL Analysis of Grain Shape Traits in Different Environments
作  者:
ZHANG Guang-heng 1,2, ZHANG Guo-ping 2, QIAN Qian 1,*, XU Lu-ping 3, ZENG Da-li 1, TENG Sheng 1, BAO Jin-song 2(1State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; 2College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, China; 3Zhejiang Huanong Limited Company, Hangzhou 310008, China)
关键词:
rice; grain shape; double haploid population; quantitative trait loci; environment
摘  要:
Quantitative trait loci(QTL) for three grain shape traits including grain length(GL), grain width(GW) and grain length-width ratio (GLW) were mapped in three environments (Beijing, Hangzhou and Hainan). Totally, 18 QTLs were detected for grain shape, locating on chromosome 1, 2, 3, 4, 6, 8 and 12. Three putative QTLs, nine putative QTLs, and six putative QTLs were detected for grain length, grain width, and length-width ratio, respectively. All of these QTLs explained 9.9% to 18.4% phenotypic variation of grain length, 8.4% to 25.6% for grain width, and 9.8% to 22.7% for length-width ratio. The LOD value varied from 2.69 to 4.75 for grain length, from 2.43 to 5.77 for grain width, and from 2.44 to 6.02 for length-width ratio, respectively.

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