中国农业科学 ›› 2010, Vol. 43 ›› Issue (5): 1093-1098 .doi: 10.3864/j.issn.0578-1752.2010.05.026

• 研究简报 • 上一篇    

石榴品种数量分类研究

汪小飞,周耘峰,黄埔,向其柏,尤传楷,孙龙

  

  1. (黄山学院生命与环境科学学院)

  • 收稿日期:2009-07-22 修回日期:2009-11-24 出版日期:2010-03-01 发布日期:2010-03-01

Study on the Classification on Pomegranate Cultivars by Numerical Taxonomy

WANG Xiao-fei, ZHOU Yun-feng, HUANG Pu, XIANG Qi-bai, YOU Chuan-kai, SUN Long
  

  1. (黄山学院生命与环境科学学院)

  • Received:2009-07-22 Revised:2009-11-24 Online:2010-03-01 Published:2010-03-01

摘要:

【目的】分析石榴表型遗传多样性,从数量分类角度对其进行分类研究,为石榴品种形态分类和优良品种选育奠定基础。【方法】根据28个形态特征对62个石榴品种资源对生物学特进行观察并测定性状数值,利用UPGMA法和组内均联法作图。【结果】组内均联法和UPGMA法都支持品种亲缘近的品种聚合在一起;组内均联法聚类,可以将石榴品种划分出,分别为单瓣和复瓣、重瓣、台阁3个品种群;UPGMA法可以分出单瓣、重瓣和台阁品种群,但出现了极个别品种的交叉,两种方法与形态分类基本一致;UPGMA法对62个品种聚类,支持了在形态分类时把花色、株高、花瓣性状作为分类标准。【结论】数量分类用于石榴品种分类研究与形态分类基本一致,可以支持形态分类,同时可以显现品种亲缘关系,并且花色、花瓣、株高在聚类分析中起着重要作用。

关键词: 石榴, 品种资源, 品种分类, 数量分类

Abstract:

【Objective】 Assessing the genetic diversity by morphological traits and analyzing the genetic relationships among pomegranate cultivars in order to provide essential information for the classification by morphological traits and the exploration and utilization of pomegranate cultivars. 【Method】 Based on the observation and records of the genetic relationship of 62 pomegranate cultivars, 28 characteristics were studied by means of numerical taxonomic method and cluster analysis was carried out using within-groups linkage and UPGMA method. 【Result】 The method of within-groups linkage and UPGMA could also support the cultivars with nearer relatives come together. Using the method of within-groups linkage, the pomegranate cultivars classification could be divided into three groups, such as Danban group and Fuban group, Chongban group, Chong’e group; Using the method of UPGMA, the cultivars also could be divided into Danban group, Chongban group, Chong’e group, but a tiny number of cultivars appeared among the three groups, and the two methods could both support the relative near species of species to come together. When UPGMA method was used to cluster 62 cultivars, it was found that the flower color was an extremely important character, which supported that the flower color, plant height, petal were the important standards of classification of morphology. 【Conclusion】 Numerical taxonomic method applied to classification of pomegranate cultivars is basically consistent with the classification by morphological traits, and can support the morphological classification, in the meantime, the variety relationship can be showed, and the flower color, plant height, petal play important roles in clustering analysis.

Key words: pomegranate, cultivars resources, cultivar classification, numerical taxonomy