几个槐树植物的ISSR鉴定

运用ISSR分析技术，对香花槐、龙爪槐、刺槐和红花槐4份材料进行品种鉴定和聚类分析．用筛选出的19个引物扩增得到了4个槐树植物的DNA指纹图谱，结果表明各槐树之间的相似性系数在0．18～0．91之间，龙爪槐和红花槐间的相似性系数为0．18，香花槐和红花槐间的相似性系数为0．91，香花槐、龙爪槐、刺槐和红花槐在DNA分子水平上的差异较明显，据此我们初步认为香花槐和红花槐不存在同物异名现象．

ISSR-Based Identification of Several Pagodatree Plants

Identification and cluster analysis of four pagodatree plants: Cladrastis sinensis Hemsl,Sophora japonica var.pendula Loud,Robinia pseudoacacia Linn.and Robinia pseudoacacia 'decaisneana' were carried with ISSR marker.The DNA fingerprints of 4 pagodatree plants were obtained with the PCR amplification primed by 19 primers.The results showed that the similarity coefficient of them ranged from 0.18 to 0.91.The similarity coefficient between Sophora japonica var.pendula Loud and Cladrastis sinensis Hemsl is 0.18.and that between Robinia pseudoacacia 'decaisneana' and Cladrastis sinensis Hemsl is 0.91.The four materials have obvious difference on the DNA level.A primary conclusion can be obtained that there is no synonym among Robinia pseudoacacia 'decaisneana' and Cladrastis sinensis Hemsl.