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Plant Diversity ›› 2015, Vol. 37 ›› Issue (05): 595-604.DOI: 10.7677/ynzwyj201515004

• 研究论文 • 上一篇    下一篇

基于ESTSSR标记的莲属种质资源遗传多样性分析

 徐玉仙1、2、3, 张微微2、4, 莫海波2, 李春2、3, 曹建国1, 田代科2、3   

  1. 1 上海师范大学生命与环境科学学院,上海200234;2 上海辰山植物园、中国科学院上海辰山植物
    科学研究中心,上海201602;3 上海市资源植物功能基因组学重点实验室,上海201602;
    4 上海农林职业技术学院,上海201600
  • 收稿日期:2015-01-06 出版日期:2015-09-25 发布日期:2015-03-16
  • 基金资助:

    上海市绿化和市容管理局攻关项目 (F112421)、上海市绿化和市容管理局科学技术项目 (G142427)

Genetic Diversity Analysis of Nelumbo Accessions Based on ESTSSR Markers

 徐玉仙1、2、3, 张微微2、4, 莫海波2, 李春2、3, 曹建国1, 田代科2、3   

  1. 1 College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China; 2 Shanghai Chenshan
    Plant Science Research Center, Chinese Academy of Sciences, Chenshan Botanical Garden, Shanghai 201602, China;
    3 Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai 201602, China;
    4 Shanghai Vocational College of Agriculture and Forestry, Shanghai 201600, China
  • Received:2015-01-06 Online:2015-09-25 Published:2015-03-16
  • Supported by:

    上海市绿化和市容管理局攻关项目 (F112421)、上海市绿化和市容管理局科学技术项目 (G142427)

摘要:

利用ESTSSR分子标记对30个亚洲莲、6个美洲莲及14个亚美杂交莲品种 (野生居群) 进行遗传多样性分析,结果表明:从123对ESTSSR引物中筛选出52对 (423%) 扩增稳定、具有多态性的引物;利用这52对引物对50个不同类型代表的莲属品种进行扩增,共获得177条多态性条带,引物的等位基因数和多态性信息量 (PIC) 的范围分别为2~8个和063 (NNFB1059) 091 (NNFB750),平均为34个和079。利用NTSYSpc2.11软件对扩增结果进行Jaccard相似性系数分析,50个荷花品种材料遗传相似系数为024~086;通过UPGMA法进行聚类分析,在遗传相似系数037处供试荷花材料可分为4大类群:亚洲莲品种均聚类在I、II类群中,III类群绝大部分为亚美杂交莲品种,IV类群为美洲莲,亚美杂交莲品种与亚洲莲品种的亲缘关系相对较近,与传统分类及前人研究结果相一致。

关键词: 莲, EST-SSR, 遗传多样性, 亲缘关系

Abstract:

EST-SSR markers were applied to estimate the genetic diversity for 30 accessions of Nelumbo nucifera, 6 accessions of Nelumbo lutea and 14 hybrids between these two species. The 52 of 123 ESTSSR markers (423%) were screened and then applied to amplify the 50 Nelumbo accessions. A total of 177 alleles were identified, and the number of alleles per locus and Polymorphic Information Content (PIC) value varied from 2 to 8 with an average of 34 alleles and from 063 (NNFB1059) to 091 (NNFB750) with an average value of 079, respectively. Jaccard similarity coefficients of the amplification results were analyzed by NTSYSpc2.11 software and the genetic similarity coefficient was from 024 to 086. The clustering dendrogram constructed by UPGMA method indicated that 50 accessions of Nelumbo could be divided into four major groups at the similarity coefficient of 037. Group I and group II included Nnucifera; group III included the majority of AsianAmerican lotus hybrids; and group IV included Nlutea. In addition, the AsianAmerican hybrids were closer to Nnucifera based on genetic relationship, which is consistent with the traditional classification result and the previous reports.

Key words: Nelumbo, EST-SSR, Genetic diversity, Genetic relationship

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