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园艺学报 ›› 2004, Vol. 31 ›› Issue (4): 529-532.

• 研究报告 • 上一篇    下一篇

ISSR.PCR技术在桂花品种分类研究中的应用

邱英雄 胡绍庆 陈跃磊 陈 晓 吴光洪   

  1. ( 浙江大学生命科学学院,杭州310029; 杭州植物园,杭州310013; 杭州桂花品种技术开发有限公司,杭州310010)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-08-25 发布日期:2004-08-25

Studies on Cultivar Classification of Osmanthus fragrans by ISSR·PCR Analysis

Qiu Yingxiong ,Hu Shaoqing ,Chen Yuelei ,Chen Xiao ,and Wu Guanghong
  

  1. ( College ofLife Sciences,Zhejiang University,Hangzhou 310029,China; Hangzhou Botanical Garden,Hangzhou 310013China; Hangzhou Sweet Olive Technology Development Co.,Ltd,Hangzhou 310010,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-08-25 Published:2004-08-25

摘要: 利用ISSR.PCR方法对桂花的19个品种进行了基因组多态性分析,从74个ISSR引物中筛选
出13个多态性引物用于正式扩增,共扩增出9o条DNA片段,其中多态性DNA条带79条,占总扩增片段
的87.8% ,平均每个引物扩增的DNA带的数目为6.92条。根据ISSR扩增结果,应用RAPDistance软件进
行Nei相似性系数和遗传距离计算,利用UPGMA法构建聚类树状图。聚类分析的结果把供试桂花的l9个
品种分为8个大类,并对4个品种群的遗传关系和种下分类系统进行了探讨。

关键词: 桂花, 品种, ISSR, 遗传关系

Abstract: In this study,inter.simple sequence repeat(ISSR)was evaluated for its potential use in the
identification of 1 9 Osmanthus fragran,s cuhivars.1 3 out of 74(1 8.6%)ISSR primers could generate repro.
ducible polymorphic fragments.The ISSR.PCR assay revealed a total number of 90 DNA bands.of which 79
bands were polymorphic(the percentage of polymorphic bands,PPB=87.8%).Optimized ISSR primers
amplified 4 to 1 0 bands ranging in size from 300 bp to 2000 bp,with an overall average of 6.92 amplified
bands per primer.RAPDistance software was used to calculate the Nei’S genetic distance and a dendrogram
was constructed based on UPGMA cluster analysis.These 1 9 Osmanthus fragrans cuhivars surveyed were clas.
sifted into eight major groups,and each cuhivar in this study could be distinguished from others.The genetic
relationship of four cuhivars group and classification of Osmanthus fragrans were also discussed.

Key words: Osmanthus fragrans, Cuhivars, ISSR, Genetic relationship