中国水稻科学 ›› 2013, Vol. 27 ›› Issue (3): 259-264.DOI: 10.3969/j.issn.10017216.2013.03.005

• 研究报告 • 上一篇    下一篇

粳稻BT型细胞质雄性不育恢复基因功能标记的开发与应用

陈涛,骆名瑞,张亚东,朱镇,赵凌,赵庆勇,周丽慧,姚姝,于新,王才林*   

  1. 江苏省农业科学院 粮食作物研究所/江苏省优质水稻工程技术研究中心/国家水稻改良中心 南京分中心, 江苏 南京 210014;
  • 收稿日期:2012-04-23 修回日期:2012-08-07 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 王才林*
  • 基金资助:

    国家863计划资助项目(2011AA10A100);江苏省科技支撑计划资助项目(BE2012303);江苏省农业科技自主创新基金资助项目(CX\[11\]1022)。

Development and Application of a Functional Marker Associated with Fertilityrestoring   Gene for BTtype Cytoplasmic Male Sterility (CMS) in  japonica  Rice 

CHEN  Tao, LUO Mingrui, ZHANG Yadong, ZHU Zhen, ZHAO Ling, ZHAO Qingyong, ZHOU Lihui, YAO Shu, YU Xin, WANG Cailin*   

  1. Institute of Food Crops,Jiangsu Academy of Agricultural Sciences/Jiangsu High Quality Rice R&D Center/Nanjing Branch of China National Center for Rice Improvement, Nanjing 210014, China;
  • Received:2012-04-23 Revised:2012-08-07 Online:2013-05-10 Published:2013-05-10
  • Contact: WANG Cailin*

摘要: 为提高粳稻BT型细胞质雄性不育恢复基因的选择效率,在前人克隆的基础上,根据其恢复系与不育系在Rf1a位点574 bp的碱基插入/缺失,设计出功能标记InDelRf1a。利用该标记对不同地区来源的72份籼、粳稻材料进行检测,结果表明所有的常规籼稻品种、恢复系及保持系在Rf1a位点并不存在缺失,其基因型为Rf1aRf1a。这些材料对粳稻BT型细胞质雄性不育系具有恢复育性的作用;而绝大多数常规粳稻品种(爱知106和伊粳12号除外)在该位点存在缺失,其基因型为rf1arf1a,它们对BT型细胞质雄性不育系具有保持不育的能力。同时,为进一步验证该标记对不同基因型的检测效果,利用其对粳稻恢复系、不育系、杂交组合以及863A/宁恢 8号 F2分离群体的DNA进行扩增,根据其电泳带型可准确区分出Rf1a位点的3种基因型。

关键词: 水稻, BT型细胞质雄性不育, 恢复基因, 功能标记

Abstract: To improve the selection efficiency of restoring gene for BTtype cytoplasmic male sterility (CMS) in japonica  rice, we designed a functional marker InDelRf1a based on a 574 bp insertion/deletion (InDel) in Rf1a locus between  japonica  restorer line and CMS line reported by previous studies and used it to identify the genotypes of Rf1a locus in 72  indica  or  japonica  rice materials. The results showed that there was no 574 bp deletion in  indica  conventional rice varieties, restorer and maintain lines and they could restore the fertility of BTtype CMS in  japonica  rice, with genotypes of  Rf1aRf1a; However, the same deletion was detected in most of  japonica  conventional rice varieties, except in Aichi 106 and Yijing 12, and they had the ability to maintain sterility of BTtype CMS lines, with genotypes of Rf1aRf1a. For further verification of the detection effect with this marker for different genotypes in this locus, we used it to amplify the DNA of different  japonica  rice restorer lines, CMS lines, hybrid F1 and the F2 population derived from a cross between 863A and Ninghui 8, and three genotypes in Rf1a  locus could be distinguished distinctly by gel electrophoresis. 

Key words: rice, BTtype cytoplasmic male sterility, fertilityrestoring gene, functional marker

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