生物技术通报 ›› 2016, Vol. 32 ›› Issue (4): 151-158.doi: 10.13560/j.cnki.biotech.bull.1985.2016.04.020

• 研究报告 • 上一篇    下一篇

海带种质资源遗传多样性的RAPD分析

李言,刘延岭,崔翠菊,李晓捷,梁广津,彭捷,田萍萍   

  1. 山东东方海洋科技股份有限公司 国家海藻与海参工程技术研究中心 山东省海藻遗传育种与栽培技术重点实验室,烟台 264003
  • 收稿日期:2015-07-02 出版日期:2016-04-25 发布日期:2016-04-26
  • 作者简介:李言,女,硕士,研究方向:藻类遗传学;E-mail:liyan-pig@163.com
  • 基金资助:
    国家科技支撑计划项目(2012BAD55G01),国家高技术研究发展计划(“863”计划)项目(2012AA10A406),烟台市科技发展计划项目(2013LGS002)

RAPD Analysis of Genetic Diversity in Saccharina japonica Germplasm Resources

LI Yan, LIU Yan-ling, CUI Cui-ju ,LI Xiao-jie, LIANG Guang-jin ,PENG Jie ,TIAN Ping-ping   

  1. Shandong Oriental Ocean Sci-tech Co. Ltd.,National Algae and Sea Cucumber Project Technology Research Centre,Key Laboratory of Algae Genetic Breeding and Cultivation Technology of Shandong Province,Yantai 264003
  • Received:2015-07-02 Published:2016-04-25 Online:2016-04-26

摘要: 利用RAPD分子标记技术对种质库中保存的19个海带品种(系)的36个海带配子体进行了遗传多样性分析。从100条引物中筛选出16条可扩增出清晰条带的引物,在36个海带配子体中共扩增出362条DNA条带,其中多态性条带比例达99.45%。遗传相似性分析表明,这36个配子体之间的遗传相似性范围为0.682-0.978,以0.756为最低遗传相似系数,可将36个种质材料分为6个大类,UPGMA聚类分析结果表明同一品系的雌雄配子体大部分能聚在一起,品系间遗传多样性较高。

关键词: 海带, 配子体, RAPD, 遗传多样性

Abstract: The genetic diversity of 36 gametophytes of 19 varieties(or lines)of Saccharina japonica was analyzed with RAPD(random amplified polymorphic DNA)markers. Sixteen primers with clear bands were selected out from 100 primers for diversity analysis. These primers amplified 362 DNA bands from 36 gametophytes,and 99.45% of the bands were polymorphic. The genetic similarity of the 36 gametophytes ranged from 0.682-0.978. The 36 gametophytes germplasm were clustered into 6 groups while 0.756 was as the minimum genetic similarity coefficient. The UPGMA cluster results indicated that the male and female gametophyte of the same species were clustered together,and genetic diversity among species was high.

Key words: kelp, gametophyte, RAPD, genetic diversity