地黄属和崖白菜属的数量分类  

A numerical taxonomy of the genera Rehmannia and Triaenophora

作　　者：李晓东[1] 昝艳燕[1] 李建强[1] 杨淑贞[2] 

机构地区：[1]中国科学院武汉植物园 [2]浙江天目山国家级自然保护区,浙江临安311300

出　　处：《植物分类学报》2008年第5期730-737,共8页Acta Phytotaxonomica Sinica

基　　金：中国科学院方向性项目(KSCX2-SW-104);中国科学院武汉植物园创新工程资助项目(01035123;01035107)资助

摘　　要：选择地黄属Rehmannia和崖白菜属Triaenophora的8种植物55个形态学、细胞学、花粉学等性状指标,根据种间欧氏距离,利用NTSYS-pc Version 2.10e软件中的UPGMA聚类分析方法和主成分分析方法,首次对这两个属进行数值分类学研究。结果表明:地黄属与崖白菜属是两个自然类群,除地黄属内的高地黄与裂叶地黄在UPGMA聚类中不能分开外,其他物种都能很好地分开。数量分类支持最近新发表的神农架崖白菜新种。In the present paper, numerical taxonomy of eight species of the genera Rehmannia and Triaenophora were carried out using 55 morphological, cytological and pollen characters. The principal components analysis （PCA） and UPGMA clustering analysis of NTSYS-pc （version 2.10e） were performed to analyze the Euclidean distance of the relationship of the species in both of the genera for the first time. Our results indicate that Rehmannia and Triaenophora are two distinct groups. All species in this study were separated easily except for Rehmannia elata and R. piasezkii in the dendrogram. The recently reported species Triaenophora shennongjiaensis in the dendrogram was supported as a distinct entity by the numerical taxonomy.

关 键 词：数量分类 主成分分析 地黄属 崖白菜属 UPGMA 

分 类 号：Q949[生物学—植物学]