安徽农业科学Issue(6)：3212-3217,3283,7.
糯玉米自交系遗传多样性及其产量、农艺性状与SSR分子标记的关联研究
Study on the Genetic Diversity and Association Analysis of Yield and Agronomic Traits with SSR Primers in Waxy Maize Inbred Lines
摘要
Abstract
[Objective]To study the genetic diversity of waxy maize inbred lines and determine their genetic relationship,so as to provide references for the new varieties breeding of waxy maize. [ Method] A total of 84 waxy corn inbred lines were used as experimental materials. Seventy one SSR markers in maize 10 chromosomes were adopted to explore the genetic diversity of waxy maize. The association of the agronomic and yield traits of waxy corn with the SSR primers was analyzed. [ Result]Of the 150 SSR primers,71 could obtain polymorphic bands among waxy corn inbred lines. Seventy one pairs of primers in maize 10 chromosomes detected 342 alleles. The number of detected alleles was within a range of 2 -11. Polymorphism information content (PIC) value ranged from 0. 249 to 0. 876, the genetic distance among the inbred lines was 0.02 -0. 32 with an average of 0.17; 84 waxy maize inbred lines could be divided into 8 groups. The 2 485 combinations of 71 SSR primers at 10 linkage group were in linkage disequilibrium state;21 SSR markers were detected to be associated with 10 agronomic and yield traits. [ Conclusion ] The research expounded the genetic diversity of waxy maize inbred lines and their genetic relationship,which provided references for the hybrids and new varieties breeding of waxy maize.关键词
糯玉米/遗传多样性/关联分析/农艺性状/产量性状Key words
Waxy maize/Genetic diversity/Association analysis/Agronomic traits/Yield traits分类
农业科技引用本文复制引用
蒋思霞,倪正斌,印志同,徐志英,邓德祥..糯玉米自交系遗传多样性及其产量、农艺性状与SSR分子标记的关联研究[J].安徽农业科学,2012,(6):3212-3217,3283,7.基金项目
教育部"作物功能基因组重点实验室"开放课题及江苏省科技支撑计划(农业BE2011303)资助. （农业BE2011303）
