华北农学报 ›› 2013, Vol. 28 ›› Issue (6): 1-5. doi: 10.7668/hbnxb.2013.06.001

所属专题: 水稻

• 论文 •    下一篇

基于染色体单片段代换系的水稻糙米率QTL的定位

周勇1, 高云1, 朱松松1, 朱金燕2, 王军2, 裔传灯1, 仲维功2, 梁国华1   

  1. 1 教育部植物功能基因组学重点实验室,江苏省作物遗传生理重点实验室扬州大学, 扬州大学, 江苏 扬州 225009;
    2 国家水稻改良中心南京分中心 江苏省农业科学院粮食作物研究所, 江苏 南京 210014
  • 收稿日期:2013-08-08 出版日期:2013-12-28
  • 作者简介:周勇(1983-),男,江苏泗洪人,讲师,博士,主要从事水稻遗传育种研究。
  • 基金资助:
    国家重点基础研究发展计划项目(2010CB125904);江苏省科技支撑计划项目(BE2012309);国家与江苏省粮食丰产科技工程项目(No.2011BAD16B03/BE2009425);江苏省农业科技自主创新基金项目(CX(12)1003-2);江苏省植物功能基因组学重点实验室开放课题(K12003)

QTL Mapping of BRown Rice Rate Using ChRomosome Single Segment Substituted Lines in Rice

ZHOU Yong1, GAO Yun1, ZHU Song-song1, ZHU Jin-yan2, WANG Jun2, YI Chuan-deng1, ZHONG Wei-gong2, LIANG Guo-hua1   

  1. 1 Jiangsu Key Laboratory for Crop Genetics and Physiology, Jiangsu Key Laboratory of Plant Functional Genomics, Yangzhou University, Yangzhou 225009, China;
    2 Nanjing Branch of Chinese National Center for Rice Improvement, Institute of Food Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
  • Received:2013-08-08 Published:2013-12-28

摘要: 以广陆矮4号为受体,日本晴为供体的119个染色体单片段代换系为材料,通过单因素方差分析和Dunnett's多重比较,分析染色体单片段代换系与受体亲本之间糙米率的差异,对代换片段上的糙米率相关QTL进行鉴定。以P≤0.001为阈值共检测到2个糙米率QTL,利用代换作图法将其分别定位在第6染色体和第9染色体上,2个QTL均表现为增效作用,增效位点来自于粳稻亲本日本晴,其加性效应值分别为1.49%和1.32%,加性效应百分率分别为1.89%和1.68%。该研究对进一步发掘和利用新的水稻糙米率QTL具有重要意义,同时对提高水稻糙米率、增加稻米的实际产量具有十分重要的经济价值。

关键词: 水稻, 糙米率, 数量性状位点, 染色体单片段代换系, 代换作图

Abstract: Brown rice rate is one of the indexes for rice milling quality measurement.In this study, the inherit-ance of brown rice rate was characterized using 119 chromosome single segment substitution lines ( CSSSLs ) derived from Nipponbare and Guangluai 4.One-way ANOVA and Dunnett's test were employed to compare the difference between CSSSLs and the recurrent parent Guangluai 4.We detected 2 QTL(P≤0.001) for brown rice rate which were primarily mapped on chromosome 6 and 9 by substitution mapping.Both of the allele from donor parent Nip-ponbare had positive effects.The additive effects of 2 QTL were 1.49% and 1.32% respectively, with additive effect percentages 1.89%and 1.68%.These results provide useful information for exploring and using new brown rice rate related QTL,and also have important economic value for increasing brown rice rate and actual production of rice.

Key words: Rice, BRown Rice Rate, Quantitative tRait loci, ChRomosome single segment substitution lines, Substitution mapping

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引用本文

周勇, 高云, 朱松松, 朱金燕, 王军, 裔传灯, 仲维功, 梁国华. 基于染色体单片段代换系的水稻糙米率QTL的定位[J]. 华北农学报, 2013, 28(6): 1-5. doi: 10.7668/hbnxb.2013.06.001.

ZHOU Yong, GAO Yun, ZHU Song-song, ZHU Jin-yan, WANG Jun, YI Chuan-deng, ZHONG Wei-gong, LIANG Guo-hua. QTL Mapping of BRown Rice Rate Using ChRomosome Single Segment Substituted Lines in Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(6): 1-5. doi: 10.7668/hbnxb.2013.06.001.