【摘要】 采用EST-SSR标记对59份甜瓜(Cucumis melo L.)种质资源的遗传多样性进行研究。结果表明,46对EST-SSR标记中有23对扩增出多态性,EST-SSR标记的多态性信息含量(Polymorphic information content,PIC)值的分布范围为0.239~0.588,平均值为0.386;46个标记共检测到54个多态性位点,种质两两之间的简单匹配(Simple matching,SM)系数范围为0~0.981;聚类结果表明,在相似系数为0.19处,59份甜瓜种质可以分为2类。更多还原

【Abstract】 The genetic diversity of 59 melon(Cucumis melo L.) germplasm resources were studied using EST-SSR markers.The results showed that 23 pairs of 46 pairs EST-SSR markers were polymorphic. The polymorphic information content(PIC)values of these markers varied from 0.239 to 0.588, with the average of 0.386. 54 polymorphic sites were detected from 46 pairs of EST-SSR markers, and the simple matching(SM) coefficients of 0~0.981. The results of cluster showed that 59 melon germplasm resources could be devided into two groups when the SM coefficient was 0.19.更多还原