湖北农业科学 ›› 2018, Vol. 57 ›› Issue (2): 119-125.doi: 10.14088/j.cnki.issn0439-8114.2018.02.030

• 生物工程 • 上一篇    下一篇

基于ISSR标记的油茶种质资源遗传基础分析

姜德志1, 方应有1, 肖贤, 程华, 张雪花, 程军勇1, 李琳玲   

  1. 1.湖北省林业科学研究院,武汉 430075;
    2.黄冈师范学院a.经济林木种质改良与资源综合利用湖北省重点实验室;b.生命科学学院,湖北 黄冈 438000
  • 收稿日期:2017-09-27 出版日期:2018-01-25 发布日期:2018-01-10
  • 通讯作者: 程军勇(1977-),男,副研究员,主要从事油茶良种选育与丰产栽培技术研究,(电话)13871407707(电子信箱)185310075@qq.com E-mail:李琳玲(1981-),女,副教授,主要从事木本粮油植物分子技术辅助育种研究,(电话)18062843199(电子信箱)382479225@qq.com。
  • 作者简介:姜德志(1986-),男,湖北鄂州人,助理研究员,硕士,从事经济林种质资源评价与利用研究,(电话)13545075640(电子信箱)363139384@qq.com
  • 基金资助:
    中央财政林业科技推广示范项目[鄂(2015)TG04号]; 大别山特色资源开发湖北省协同创新中心项目(2015TD043,2016000511); 国家林业局科技发展中心项目(lykjzc201205)

Identifying Camellia oleifera Germplasm Accessions with Inter Simple Sequence Repeat Markers

JIANG De-zhi1, FANG Ying-you1, XIAO Xian, CHENG Hua, ZHANG Xue-hua, CHENG Jun-yong1, LI Lin-ling   

  1. 1.Hubei Academy of Forestry,Wuhan 430075,China;
    2a.Economic Forest Germplasm Improvement and Comprehensive Utilization of Resources of Hubei Key Laboratories;2b.College of life Sciences, Huanggang Normal University, Huanggang 438000, Hubei, China
  • Received:2017-09-27 Online:2018-01-25 Published:2018-01-10

摘要: 以油茶(Camellia oleifera Abel.)主产区的109个种质材料为试材,采用简单序列重复区间分子标记(ISSR)和非加权组平均法(Unweighted pair-group method with arithmetic means,UPGMA)聚类分析,研究了这109个油茶种质材料遗传相似系数及亲缘关系分析,并构建了其进化树关系。结果表明,①从49条ISSR引物中筛选出23条能够扩增出清晰,稳定条带的引物,23条引物共扩增出487条带,其中多态性条带有335条,多态性条带比率为68.79%;②应用NTSYS2.10e软件对扩增结果进行UPGMA法聚类分析,109个油茶种质材料的遗传相似系数从0.61到0.93;③油茶种质资源丰富,遗传相似系数在0.735时,可将109个油茶种质材料划分为11个类群。类群I包括79个种质材料,该类群在相似系数为0.75处又可划分为7个亚类群,且这些油茶种质材料间的亲缘关系较近。但由聚类分析划分的油茶类群来看,这些油茶材料的遗传背景又比较复杂,具有丰富的遗传多样性。分析结果可为油茶主产区的品种资源开发、基因资源保存、后期品种审定及鉴别提供理论依据。

关键词: 油茶(Camellia oleifera Abel.), 种质资源, 简单序列重复区间标记, 遗传多样性

Abstract: 109 germplasm materials of Camellia oleifera Abel in the main producing areas were analyzed using inter simple sequence repeat markers(ISSR) and Unweighted pair-group method with arithmetic means (UPGMA) cluster analysis method to study the genetic correlation coefficient and genetic relationship, and constructe the phylogenetic relationship. The result showed that, (1) 23 primers with clear and stable bands were screened from 49 ISSR primers, and 487 bands were amplified by the 23 primers, of which 335 bands were polymorphic,and the polymorphic bands ratio was 68.79%.(2) NTSYS2.10e software was used to cluster the amplified results by UPGMA method; and the genetic similarity coefficients of 109 C. oleifera germplasm materials were from 0.61 to 0.93. (3) The germplasm resources of C. oleifera were rich. When the genetic similarity coefficient was 0.735, the 109 C. oleifera germplasm materials could be divided into 11 groups. The group I includes 79 germplasm materials, which can be divided into 7 sub groups at the similarity coefficient of 0.75, and the genetic relationship among these C. oleifera germplasm materials is closer. However, the genetic background of these C. oleifera germplasm materials is complex and rich in genetic diversity. The analysis results can provide theoretical basis for germplasm resources development, genetic resources conservation, late variety certification and identification in C. oleifera major producing areas.

Key words: Camellia oleifera Abel., germplasm accessions, inter simple sequence repeat, genetic diversity

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