江汉大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (6): 100-104.

• 生命科学 • 上一篇    下一篇

藜豆种质资源遗传多样性的ISSR分子标记分析

张凤银,戴希刚,潘磊   

  1. 江汉大学 生命科学学院,湖北 武汉 430056
  • 出版日期:2013-12-12 发布日期:2014-01-09
  • 作者简介:张凤银 (1964—),女,副教授,研究方向:园艺植物遗传育种。
  • 基金资助:
    湖北省豆类 (蔬菜) 植物工程技术研究中心开放基金项目 (2012-01);武汉市科技攻关计划项目(201120822281);武汉市科技攻关计划项目 (2013021001010478)

Genetic Diversity Analysis of Velvet Bean Germplasm Resources with ISSR Markers

ZHANG Feng-yin,DAI Xi-gang,PAN Lei   

  1. School of Life Sciences, Jianghan University, Wuhan 430056,Hubei,China
  • Online:2013-12-12 Published:2014-01-09

摘要: 利用ISSR标记构建了9份藜豆种质的指纹图谱,并对其遗传多样性进行评价。结果表明,从35条引物中筛选出8条重复性好的多态性引物进行PCR扩增,共扩增出64条带,其中多态性条带50条,多态性比例为78. 1%。应用其中3条多态性ISSR引物 (UBC889、UBC812、UBC825) 的12条特异性条带,可以有效区分供试的9份藜豆种质资源。藜豆种质间的遗传相似系数变化范围在0. 47~0. 97之间。利用UPGMA聚类分析,在相似性系数为0. 73处可将9个藜豆种质资源划分为3个类群,其亲缘关系与种质地理来源之间存在一定关联性。

关键词: 藜豆, 种质资源, 遗传多样性, ISSR, 相似系数, 聚类分析

Abstract: Constructed the fingerprint of 9 velvet bean(Stizolobium cochinchinensis)germplasm resources and analyse their genetic diversity with ISSR markers. The results indicated that 8 primers with strong stability and repeatability were screened from 35 primers and carried out PCR amplification. 64 bands were amplified from 9 velvet bean varieties,among which 50 were polymorphic,and the polymorphic rate was up to 78.1%. Using 12 specific bands in the 3 polymorphic ISSR primers(UBC889、 UBC812、 UBC825),the 9 velvet bean germplasm resources could be differentiated. The genetic similarity coefficients of velvet bean germplasm ranged from 0. 47 to 0. 97. Nine velvet bean varieties were divided into 3 groups by UPGMA cluster analysis with the similarity coefficient of 0. 73. The phylogenetic relationship of velvet beans are partly related to the geological sources of the germplasm.

Key words: velvet bean;germplasm resources, genetic diversity, ISSR, similarity coefficient, cluster analysis

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