福建山樱花形态多样性分化的研究  

Morphological Diversity of Cerasus campanulata

作　　者：陈璋 

机构地区：[1]福建省林木种苗总站,福州350003

出　　处：《植物遗传资源学报》2007年第4期411-415,共5页Journal of Plant Genetic Resources

基　　金：福建省科技攻关计划重点项目"福建山樱花种质资源分子标记及其遗传变异的研究"(2004N019)

摘　　要：以闽、赣、粤、台4省13个种群292份福建山樱花种质为分析材料,对16个形态性状进行聚类分析和主成分分析。结果表明:福建山樱花不同个体间各性状均有明显差异,变异系数较大,优株选择潜力很大。系统聚类分析可将292份参试材料划分为2个表征群4个亚表征群,除重瓣型福建山樱花外,单瓣型福建山樱花的形态特征在种群间总体上无明显的分化规律,不同种群的个体交叉聚在同一个表征群内,但在同一亚表征群内,同一种群的多数个体常能聚在一起,表明种群之间在形态上发生了一定程度的分化,只是这种分化还不能清楚地区分不同的种群。主成分分析结果表明叶形、叶尖、叶缘、分枝能力、60 d苗高、花色和花形是造成福建山樱花形态分化的主要因素。Statistical methods of cluster analysis and the principal component analysis were used to study 16 morphological traits from 292 individuals within 13 populations of Cerasus campanulata Maxim. in Fujian, Jiangxi, Guangdon and Taiwan provinces of China. The results showed that 292 individual could be divided into two groups, but the overall morphological differentiation of wild individuals of Cerasus campanulata was somewhat unordered. The individuals of different populations may fall into one cluster, while individuals within the same population mostly fall into the same cluster. It is inferred that there are certain amounts of morphological differentiation among populations, but the differentiation is not significant enough to distinguish the population clearly. Principal component analysis results indicated that sever of the traits measured, leaf shape, leaf tip shape, leaf edge shape, branching capability, seedling height after 60 days, flower color and flower shape, were the main sources of morphological variation.

关 键 词：福建山樱花 形态特征 聚类分析 主成分分析 

分 类 号：S685.99[农业科学—观赏园艺]