植物学报 ›› 2008, Vol. 25 ›› Issue (05): 559-564.

• 实验简报 • 上一篇    下一篇

桂花品种资源的遗传多样性分析

韩远记, 董美芳, 袁王俊, 尚富德*   

  1. 河南大学生命科学学院, 农业生物技术研究所, 开封 475001
  • 收稿日期:2008-01-02 修回日期:2008-05-09 出版日期:2008-09-01 发布日期:2008-09-01
  • 通讯作者: 尚富德*

Study on the Genetic Diversity of Osmanthus fragrans Cultivars

Yuanji Han, Meifang Dong, Wangjun Yuan, Fude Shang*   

  1. Institute of Agricultural Biotechnology, College of Life Sciences, Henan University, Kaifeng 475001, China
  • Received:2008-01-02 Revised:2008-05-09 Online:2008-09-01 Published:2008-09-01
  • Contact: Fude Shang

摘要: 根据桂花(Osmanthus fragrans)品种的形态特征, 结合AFLP分子标记, 对部分桂花栽培品种进行了遗传多样性分析。结果表明, 桂花品种之间存在着较为丰富的遗传多样性, AFLP分子标记检测到的多态性条带占总扩增条带的57.46%。 根据桂花品种的主要性状特征, 利用数值分类法对其进行分类, 并用UPGMA法对AFLP结果进行聚类分析, 结果均显示桂林地区的桂花品种存在明显的区域性, 花色可以作为重要的分类标准, 同时对桂花品种的分类系统进行了探讨。

Abstract: We used morphological features and amplified fragment-length polymorphism (AFLP) markers to analyze the genetic diversity of 45 Osmanthus fragrans cultivars and found high levels of genetic diversity among the cultivars. Of the AFLP bands detected, 57.46% are polymorphic. We classified the cultivars biometrically according to their major morphological features and performed cluster analysis of the AFLP data by the unweighted pair-group method using arithmetic averages. The results of both approaches showed that O. fragrans cultivars of the Guilin region form a distinct subgroup, and flower color is aviable classification criterion. We discuss systems for O. fragrans cultivar classification.