作物QTL分析的原理与方法

摘要/Abstract

摘要： 作物的许多性状为数量性状，数量性状基因座（QTL）定位的理论依据是Morgan的连锁遗传规律；定位的群体有初级作图群体、次级作图群体和高级作图群体；分析的方法有零区间作图法、单区间作图法、复合区间作图法、混合线性模型；影响QTL定位精确性的因素有群体的大小、分析方法、QTL的分布及作用模式等。传统的作图群体和作图方法存在一些问题，因此有必要开发新的作图群体、研制新的作图方法，以缩短QTL分析与育种实际应用之间的距离。

Abstract: Most agronomic traits are quantitative traits. Mapping of quantitative trait loci (QTL) is based on Morgan linked inheritance principle. QTL mapping populations include the primary mapping population, the secondary mapping population and the advanced mapping population. Methods of QTL analysis include the single marker mapping, the interval mapping, the composite interval mapping and the mixed linear model. The precise of QTL mapping are affected by the population size, analysis method, QTL distribution and so on. Some disadvantages are found in traditional mapping populations and analysis methods, so new mapping populations and new methods are need in future QTL analysis.

席章营,朱芬菊,台国琴,李志敏. 作物QTL分析的原理与方法[J]. 中国农学通报, 2005, 21(1): 88-88.

Xi Zhangying. Principle and Methodology of QTL Analysis in Crop[J]. Chinese Agricultural Science Bulletin, 2005, 21(1): 88-88.

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