摘要： 利用SSR标记研究了60个山西省主要玉米(Zea mays L.)自交系的遗传变异。用23对扩增带型稳定的引物，从供试自交系中检测出91个等位基因变异，每对引物检测出等位基因2～7个，平均为3.96个，平均多态性信息含量为0.600。UPGMA聚类分析将60个自交系划分为唐四平头，旅大红骨，PN，BSSS，Lancaster，Suwan等6个类群，化群结果与其系谱关系和育种家经验基本一致。

关键词: SSR标记, 玉米, 自交系

Abstract: Simple sequence repeats (SSRs) markers were used to detect genetic variation of 60 elite maize inbred lines. Twenty-three SSR primers giving stable amplified detected 96 alleles among the inbred lines tested. The average number of allele per SSR locus was 3.96 with an range from 2 to 7. The value of polymorphism information content (PIC) for each SSR locus varied from 0.15 to 0.80 with an average of 0.600. The UPGMA analysis classified 60 inbred lines into 6 clusters, which corresponed to the heterotic groups determined by their pedigree information and breeder's experiences (i. e. Tangsipingtou, Luda Red Cob, PN, BSSS, Lancaster, Suwan).

Key words: Simple sequence repeats marker, Maize, Inbred lines

中图分类号: 

• S513.03