植物数量性状关联分析研究进展  

Reviews of Association Analysis for Quantitative Traits in Plants

作　　者：杨小红[1] 严建兵[1] 郑艳萍[1] 余建明 李建生[1] 

机构地区：[1]中国农业大学国家玉米改良中心农业部作物基因组学与遗传改良重点实验室 [2]3004 Throckmorton Plant Science Center,Kansas State University,Manhattan,KS,66506-5501,USA

出　　处：《作物学报》2007年第4期523-530,共8页Acta Agronomica Sinica

基　　金：国家自然科学基金项目(30571165);引进国际先进农业科学技术计划(948计划)(2004-Z25)

摘　　要：关联分析是新近开始在植物数量性状研究和植物育种中应用的一种分析方法。它以连锁不平衡为基础鉴定某一群体内性状与遗传标记或候选基因间的关系。本文在介绍连锁不平衡的定义和度量方法的基础上,综述了连锁不平衡和关联分析在植物方面的研究进展,并讨论了交配体系、重组、遗传漂变等对连锁不平衡程度的影响,以及连锁不平衡程度和群体结构对关联分析的影响,最后讨论了关联分析在植物数量性状和分子育种研究中可能的应用。Recently, association analysis has been widely employed to investigate quantitative traits in plant genetics and breeding. Association analysis is an approach to identify the relationship of molecular markers or candidate genes with traits in a given population based on linkage disequilibrium （LD）. Here, we introduced the definition and measurements of LD and reviewed the advances of association analysis for the investigation of quantitative traits in plants. The effects of mating systems, such as recombination, genetic drift, and population structure to the patterns of LD were discussed. Finally, we also discussed the potential application of association analysis for dissecting quantitative traits and plant molecular breeding.

关 键 词：关联分析 连锁不平衡 数量性状 

分 类 号：S330[农业科学—作物遗传育种]