Breeding of CMS maintainer lines through anther culture assisted by high-resolution melting-based ma

来源 :农业科学学报(英文) | 被引量 : 0次 | 上传用户:shiguanghuai
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The integrated use of molecular marker-assisted selection (MAS) and anther culture has potential to significantly increase efficiency in plant breeding; however, reports on this kind of practical use are very limited. In the present study, we report the development of cytoplasmic male sterile (CMS) maintainers with aroma, disease resistance and red-brown hulls, as an example of integration of MAS and anther culture in rice breeding. A high-resolution melting (HRM)-based functional molecular marker was developed for the red-brown hull trait caused by a unique mutation (rbh1) in OsCAD2. Functional molecular markers for genes of rice blast resistance (Pi2), aroma (fgr) and red-brown hull (rbh1) were used for precise genotyping of individual plants in the BC1 and BC2F2 populations derived from a cross between CMS maintainers Huaxiang B (pi2–/rbh1–/fgr–) and Rong 3B (Pi2+/RBH1+/Fgr+). A total of 89 doubled haploid (DH) lines were generated from selected BC2F2 plants (Pi2+/rbh1–/fgr–) by anther culture. Seven DH lines were subsequently selected as the potential new CMS maintainers based on their overall performance and high resistance to blast. Our study demonstrated that integration of MAS and anther culture significantly accelerated the development of CMS maintainers with multiple stacked genes.
其他文献
期刊
加强行业作风建设、纠正行业不正之风是当前深入开展反腐败斗争,加强党风廉政建设的任务之一,也是社会主义精神文明建设的重要组成部分。根河市国税局在今年的行风整顿工作中,采
该文系统地分析了事业单位管理中存在的弊端,并充分论证了在事业单位管理中有所借鉴地引入企业文化机制的必要性和可行性,研究了市场经济体制下的事业单位管理和企业文化机制
该文选择作为银行提高贷款投资质量和为企业服务的重要手段-贷款项目评估,来进行深入的探讨,借此研究力图为中国当前的金融管理工作做出一些理论贡献.该文选择基层的农业银行
期刊
Peanut (Arachis hypogaea L.) is an important oil crop globally and high oil content is one of the major targets in peanut breeding programs. Previous studies in
随着自媒体时代的迅速发展,我国少数民族文学已进入网络时代,女性创作也呈现出繁荣的局面.女性主义叙事学认为叙事模式体现了一种权力的斗争,在此层面,研究故事背后所体现的
党中央提出,近两年要集中一段时间在干部中深入进行以“讲学习、讲政治、讲正气”为主要内容的党性党风教育,目前,一股开展“三讲”教育的热潮正在各级干部中兴起。开展“三讲”
该研究从WTO的实际出发,在分析中国林业、林产工业现状和发展趋势的基础上, 结合中国各产业的现实情况,剖析了中国加入WTO后会对林产工业产生直接和间接的影响, 论述了与加入
该文以河北省"九五"攻关试验区中心试区张三营镇为研究地点,运用大量的调查资 料和科学试验数据,不仅分析了张三营的农业可持续发展的态势,而且实证了农林牧可持续发展可操作