【摘要】 利用3对SSR引物,对40份国外甘蔗品种进行品种鉴定。结果表明:同名种质除CP78-1628和Ti80-5同名种质的遗传相似系数分别为0.24和0.50相对较低外,其他同名种质之间的遗传相似系数相对较高,都≥0.95,平均0.93。聚类分析表明,除CP78-1628和Ti80-5两份种质出现分支外,其他种质分支都按照同名种质分别聚类。基于遗传相似系数和聚类分析结果表明,CP78-1628和Ti80-5为同名异种种质。更多还原

【Abstract】 Tree pairs of SSR primers were employed in identification for 40 foreign genotypes of sugarcane cultivars.As a result,high genetic similarity coefficients,which could be up to 0.95 and with the mean value of0.93,were found among most the cognominal genotypes,except from those of CP78-1628 and Ti80-5.In the cognominal genotypes of CP78-1628 and Ti80-5,however,the genetic similarity were lower,with the value of0.24 and 0.50,respectively.In clustering analysis,the branching only appeared in the genotypes named as CP78-1628 Ti80-5,and the other genotypes were well clustered following their entitled names.According to the results of genetic similarity and clustering analysis,we could conclude that the CP78-1628 and Ti80-5 in this investigation were both heterogeneous.更多还原