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为给小麦育种中种质资源的合理使用提供信息参考,利用78对核心SSR引物对参试的18个小麦品种进行了基因组扫描,并通过ntsys 2.11软件对其4个农艺性状、5个品质指标和SSR标记进行了聚类分析。78对引物在18个品种中扩增出268条多态性带,每个引物2~9条,平均3.44条。18个品种可分为2大类群,第Ⅰ类包括13个品种,第Ⅱ类包括5个品种。第II类的农艺和品质指标都比第Ⅰ类高,其中面团稳定时间与第Ⅱ类差异明显,平均为13.2min。聚类结果和品种之间的亲缘关系相吻合。18个品种的遗传相似系数范围为0.55~0.86,平均为0.67。参试小麦品种存在一定的异质性,但差异较小,遗传基础狭窄。
In order to provide a useful reference for the rational use of germplasm resources in wheat breeding, 78 wheat varieties tested with core SSR primers were genomically screened and analyzed by ntsys 2.11 software on four agronomic traits, five quality indicators And SSR markers were clustered. Of the 78 pairs of primers, 268 polymorphic bands were amplified from 18 cultivars, ranging from 2 to 9 for each primer, with an average of 3.44. Eighteen varieties can be divided into two major groups, the first category includes 13 varieties, the second category includes 5 varieties. Type II agronomic and quality indicators are higher than the first class, in which the stability of the dough and the second group of significant differences, with an average of 13.2min. The clustering result is consistent with the genetic relationship among cultivars. The genetic similarity coefficients of 18 cultivars ranged from 0.55 to 0.86 with an average of 0.67. There was some heterogeneity in the tested wheat varieties, but the differences were small and the genetic basis was narrow.