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本文利用RAPD分子标记技术研究了适应我国喀斯特高海拔山区地方玉米种质的自交系的遗传多样性,从23条引 物对我国喀斯特高海拔山区玉米种质的地方自交系对其进行杂种优势群划分。从90个随机引物中筛选出23个多态性 好的引物扩增材料,产生出152条多态带,多态性位点比率为86.1%,通过UPGMA聚类分析,将我国喀斯特高海拔山区玉 米地方自交系划分为6个类群。
In this paper, the genetic diversity of inbred lines adapted to maize germplasm in high altitude mountainous areas of China was studied by using RAPD molecular markers. 23 primers were used to study the heterosis of maize germplasms in karst highland mountain areas Group division. Twenty-three polymorphic primers were screened out from 90 random primers to produce 152 polymorphic bands with a polymorphic loci ratio of 86.1%. UPGMA cluster analysis showed that the karst high-altitude mountainous areas in China Maize inbred lines are divided into six groups.