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园艺学报 ›› 2002, Vol. 29 ›› Issue (3): 218-223.

• 研究论文 • 上一篇    下一篇

九种李属植物的RAPD亲缘关系分析

阮 颖1;周朴华1;刘春林2
  

  1. (1 湖南农业大学理学院, 长沙410128; 2 湖南农业大学作物基因工程湖南省重点实验室, 长沙410128)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-06-25 发布日期:2002-06-25

Phylogenetic Relationship among Nine Prunus Species Based on Random Amplified Polymorphic DNA

Ruan Ying1, Zhou Puhua1, and Liu Chunlin2   

  1. (1 Science School of Hunan Agriculture University, Changsha 410128, China; 2 Crop Gene Engineering Key Laboratory of Hunan Province, Hunan Agriculture University, Changsha 410128, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-06-25 Published:2002-06-25

摘要: 以李属植物9 个种的20 个材料为研究对象, 用RAPD技术对其进行亲缘关系分析。在建立适
合李属植物的PCR2RAPD反应体系的基础上, 从45 个随机引物(10 mer) 中筛选出24 个, 对所有供试材料进行扩增, 共获得24 张DNA 指纹图谱, 326 条DNA 谱带, 其中有311 条为多态带。建立了基于RAPD 的李属植物亲缘关系树形图, 树形图的聚类结果与经典的李属植物的起源、分布和分类基本一致。另外, 根据聚类结果, 作者认为: 1) 乌苏里李是中国李的一个变种而非一独立的种; 2) 杏李是一李杏杂种且与杏有较近的亲缘关系; 3) 从分子水平证明了欧洲李(Prunus domestica L. ) 是由樱桃李(P. cerasifera Ehrh. ) 和黑刺李(P. spinosa L. ) 自然杂交形成的后代。

关键词: 李属, RAPD, 亲缘关系分析

Abstract: In this study, nine species of Prunus (20 materials) were analyzed using random amplified polymorphic DNA markers. 24 primers were screened from 45 arbitrary 102mer primers , and a total of 326 DNA bands were amplified , 311 of which (95. 4 %) were polymorphism. According to the data , a tree diagramof phylogenetic relationship was constructed using UPGMA in NYSYS. The results showed that : 1) P. ussuriensis was a variety of P. salician , not a independent species ; 2) P. simonii was a hybrid of P. salician and P. armaniaca and was closely related to P. armaniaca ; 3) P. domestica was a offspring formed by naturally crossing between P.cerasifera and P. spinosa.

Key words: Prunus, RAPD analysis, Phylogenetic relationship

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