长江大学湿地生态与农业利用教育部工程技术研究中心开放基金;长江大学“作物学”省级重点学科;湖北省科技支持计划(2013BBB23)
水稻(Oryza sativa L.)垩白包括垩白率和垩白度, 是重要的外观品质之一, 对其他品质性状也有重要影响, 阐明水稻垩白性状的遗传机制十分重要。近年来随着水稻功能基因组学和分子标记技术的发展, 越来越多的垩白基因获得了克隆。本文综述了水稻垩白的评价指标、与其他品质性状的关系、遗传基础、垩白QTL定位和垩白基因克隆, 并提出了借助显性核不育系进行轮回选择改良水稻垩白的分子育种策略, 以期为水稻垩白性状的分子改良提供参考和借鉴。
Rice (Oryza sativa L.) chalkiness, including percentage of grains with chalkiness and chalkiness degree, and an important appearance quality, affects many other quality traits. It’s essential to illustrate its genetic basis. With the development of functional genomics and molecular marker technology in last decades, researchers mapped many QTLs controlling chalkiness; some of them have been fine mapped already. This paper reviews evaluation index of rice chalkiness, correlation between it and other quality characters, genetic basis and QTL mapping of chalkiness, chalkiness gene cloning, and proposed molecular strategy of improving chalkiness by recurrent selection using dominant genic malesterility line combined with marker assisted selection. Our results will provide useful information for rice chalkiness improvement.
邱先进,袁志华,何文静,等.水稻垩白性状遗传育种研究进展[J].植物遗传资源学报,2014,15(5):992-998.
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