中国水稻科学 ›› 2011, Vol. 25 ›› Issue (5): 561-564.DOI: 10.3969/j.issn.10017216.2011.05.016

• 研究简报 • 上一篇    下一篇

水稻顶部小穗退化性状的QTL分析

王斌1,刘贺梅2,毛毕刚3,高素伟3,徐宏斌1,葛建贵1,*   

  1. 1安徽省六安市农业科学研究所, 安徽 六安237000; 2 河南省新乡市农业科学院, 河南 新乡453003; 3 中国农业科学研究院 作物科学研究所, 北京100081
  • 收稿日期:2011-01-11 修回日期:2011-04-08 出版日期:2011-09-10 发布日期:2011-09-10
  • 通讯作者: 葛建贵1,*
  • 基金资助:

    国家973计划资助项目(2010CB125904)

QTL Analysis on Apical Spikelet Abortion in Rice

WANG Bin 1 , LIU  Hemei 2,  MAO  Bigang 3, GAO  Suwei 3,  XU  Hongbin 1,  GE Jiangui 1,*    

  1. 1 Institute of Lu′an Agricultural Sciences, Anhui  Province,  Lu′an 237000, China; 2 Xinxiang Academy of Agricultural Sciences,  Henan Province,  Xinxiang 453003, China; 3 Institute of Crop Sciences,  Chinese Academy of Agricultural Sciences, Beijing 100081, China;
  • Received:2011-01-11 Revised:2011-04-08 Online:2011-09-10 Published:2011-09-10
  • Contact: GE Jiangui1,*

摘要: 利用水稻籼粳亚种间组合越光与桂朝2号构建的重组自交系群体,在3种环境下对水稻穗顶部小穗退化性状进行了数量性状基因座(QTL)分析。重组自交系群体中穗顶部小穗退化性状的表型均呈连续分布,表现为数量性状遗传,并出现了超亲分离。在RIL群体中共检测到6个QTL,分别位于水稻第1、2、3、5、6和7染色体上,贡献率为4.49% ~ 9.74%。其中, 在两地都分别检测到的qASA2位于第2染色体上RM3355―RM263区间;位于第1染色体标记区间RM6451―OSR13的qASA1, LOD值达3.27,其增效等位基因来自桂朝2号。

关键词:  水稻font-family: 宋体, mso-bidi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">︱顶部小穗退化font-family: 宋体, mso-bidi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">︱数量性状基因座

Abstract: Quantitative trait loci (QTL) analysis on  abortion of apical spikelet was conducted  by using recombinant inbred lines (RILs)  derived from a cross between  indica variety Guichao 2 and Koshihikari   under three environments. The abortion trait of apical spikelets in the recombinant inbred lines demonstrated a continuous distribution together with transgressive segregations. Six QTLs were  mapped on  the  chromosomes 1,2,3,5,6 and 7  in RIL populations,  explaining 4.49% -9.74% phenotypic variations. Among these QTLs, qASA2 was detected  at  the interval flanked by the markers RM3355 and RM263 on  chromosome 2 under  different environments.  qASA1  was mapped between the markers RM6451 and OSR13 on chromosome 1   with its  positive alleles     from Guichao 2.

Key words: ricefont-family: 宋体, mso-bidi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">︱apical , spikelet abortionfont-family: 宋体, mso-bidi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">︱, quantitative trait locus

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