Morphological Variations and Genetic Diversity of Epimedium sagittatum Populations

Plant Science Journal Pub Date : 2013-01-01 DOI:10.3724/SP.J.1142.2013.40422

Qiong Liang, Yanjun Zhang, Yanqin Xu, Hongwen Huang, Ying Wang

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引用次数: 2

Abstract

Epimedium sagittatum has wide distribution and the large morphological variation,which makes it difficult to classify.In addition,great differences related to morphological traits and bioactive components exist between different populations with unstable quality.In this study,quantitative morphological characters and genetic diversity of 12 geographic populations of E.sagittatum were determined by a common garden experiment in the Wuhan Botanical Garden,CAS.The results showed there were significant differences in morphological traits.Based on AFLP data,the genetic diversity analysis demonstrated that population relationships were closely related with geographical distribution:Liuzhou population(LZ),Northwest populations(CL,HH,ZY)and Eastern and Central China populations(YT,WN,NF,HS,QZ,SG,LY,LT)were successively separated.But complicated morphological variations were shown by hierarchical cluster analysis of the main quantitative morphological characters and only part of the populations showed a certain relationship with genetic diversity.This study provides important information on the taxonomy and exploration of quality resources of E.sagittatum.

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矢状淫羊藿居群的形态变异和遗传多样性

矢状淫羊藿分布广，形态变异大，分类困难。此外，不同种群间在形态性状和生物活性成分方面存在较大差异，且质量不稳定。在中国科学院武汉植物园的普通园林试验中，对12个地理居群的数量形态特征和遗传多样性进行了研究。结果表明，在形态性状上存在显著差异。基于AFLP数据的遗传多样性分析表明，种群关系与地理分布密切相关:柳州种群(LZ)、西北种群(CL、HH、ZY)和华东和华中种群(YT、WN、NF、HS、QZ、SG、LY、LT)依次分离。但主要数量形态特征的层次聚类分析显示出复杂的形态变异，只有部分居群与遗传多样性存在一定的关系。本研究为矢状莲的分类和优质资源的开发提供了重要信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Plant Science Journal

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