摘要
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。
Grain chalkiness consisted of percentage of grains with chalkiness and degree of chalkiness in endosperm,is an important appearance quality in rice（ Oryza sativa L.）. It also affects many other quality traits. It is essential to understand its genetic basis controlling grain chalkiness. With the recent development of functional genomics and molecular marker technology,numerous QTLs for grain chalkiness have been fine mapped and cloned in rice. This paper reviewed evaluation of grain chalkiness,its correlation with other quality characters,advances on its genetic studies,mapping and cloning of QTL and genes associated with chalkiness,and molecular breeding strategy for improvement of chalkiness by marker assisted recurrent selection scheme using dominant genic male-sterility line. This review would provide useful information for rice chalkiness improvement.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2014年第5期992-998,共7页
Journal of Plant Genetic Resources
基金
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)
