利用SRAP标记对24份仁用杏品种进行了遗传多样性分析。15对引物共扩增出280条带,其中241条为多态性谱带,多态性比率为85.34%;每个引物组合扩增谱带数在13~24条之间,平均为18.7条;多态性信息含量(PIC)在0.28~0.65之间,平均为0.51。基于引物Me4-Em4扩增的多态性谱带,构建的指纹检索系统可以区分24个仁用杏品种。根据SRAP扩增结果,利用UPGMA法构建树状聚类图,在相似系数为0.70处可将24个仁用杏品种分为4组,聚类结果与形态分类基本一致。 SRAP markers were used to analyze the genetic diversity of 24 apricots cultivars. A total of 280 bands were amplified by 15 pairs of primers, of which 241 were polymorphic and the percentage of polymorphic bands was 85.34%. The number of amplified bands per primer ranged from 13 to 24 with an average of 18.7 ; The polymorphism information content (PIC) ranged from 0.28 to 0.65 with an average of 0.51. Based on the polymorphism bands amplified by primer Me4-Em4, the fingerprinting system constructed can differentiate 24 apricot cultivars. According to the result of SRAP amplification, the dendrogram was constructed by UPGMA method. At the similarity coefficient of 0.70, 24 apricot cultivars could be divided into 4 groups, and the clustering results were basically the same as the morphological classification.