【摘要】 采用微卫星分子标记(SSR)对贵州省2007～2009年参加区域试验的20个小麦品种(系)的遗传多样性进行了研究。结果表明,12对引物共检测到46个等位位点,每对引物等位位点数在2～7之间,平均为3.83个。聚类分析表明,品种间遗传距离(D)变异范围为0.116～0.526,平均值为0.321,SSR标记能将全部材料区分开来,20个小麦品系可分为5类。本研究表明,采用核心引物进行不同小麦新品种的遗传多样性分析,对小麦新品种的特异性检测和品种保护是一种有效的手段。更多还原

【Abstract】 The genetic diversity among 20 wheat lines,which had been taken part in Guizhou province field trial in 2007-2009,was investigated by using SSR markers.The results showed that a total of 46 allelic loci were detected by a set of 12 primers.The number of alleles per primer pair ranged from 2 to 7,with average 3.83.Cluster analysis showed the average GD of the wheat varieties breeding was 0.321,ranging from 0.116 to 0.526.The GD among 20 wheat lines was calculated to 5 types based on SSR markers.The results indicated that it was an effective method of specific detection and variety protection using different wheat new variety of genetic diversity with core-primers.更多还原