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茶叶科学 ›› 2007, Vol. 27 ›› Issue (1): 45-50.doi: 10.13305/j.cnki.jts.2007.01.007

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ISSR分子标记在茶树遗传关系分析中的初步应用

林郑和1, 陈荣冰1, *, 陈常颂1, 林金科2, 郝志龙2, 高水练2, 陈梁城2   

  1. 1. 福建省农业科学院茶叶研究所 福建 福安 355015;
    2. 福建农林大学园艺学院 福建 福州 350002
  • 收稿日期:2006-06-28 修回日期:2006-11-21 出版日期:2007-03-25 发布日期:2019-09-11
  • 通讯作者: * 陈荣冰,rb_chen@163.com
  • 作者简介:林郑和(1975— ),男,福建福安人,助理研究员,主要从事茶树遗传育种与生物技术。
  • 基金资助:
    优质茶树种质资源鉴定利用与新品种选育研究(福建省农业科学院重点学科建设B类)

Preliminary Application of ISSR Markers in the Genetic Relationship Analysis of Tea Plants

LIN Zheng-he1, CHEN Rong-bing1, *, CHEN Chang-song1, LIN Jin-ke2, HAO Zhi-long2, GAO Shui-lian2, CHEN Lian-cheng2   

  1. 1. Tea Research Institute, Fujian Acaedemy of Agricultrual Sciences, Fu’an 355015, China;
    2. Horticultural Institute of Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2006-06-28 Revised:2006-11-21 Online:2007-03-25 Published:2019-09-11

摘要: ISSR标记是一种基于微卫星序列发展起来的十分有效的分子标记。本文主要利用ISSR分子标记对我国39份茶树种质资源进行遗传关系研究,从40条引物中筛选出15条引物,共扩增出143个位点,其中多态性位点为131个,占91.6%。通过UPGMA聚类分析,39个茶树种质资源GS变化范围0.21~0.95,其中慢奇兰与竹叶奇兰GS值最大、遗传相似程度最高,遗传距离最近;崇庆枇杷茶与英红1号GS值最小、遗传相似程度最低、遗传学差异最大。聚类分析将39个种质资源划分为3个大类(GS=0.20),崇庆枇杷与英红1号,属于原始类型资源,归为一类;九龙珠与黄龙,属于较原始类型,也归为一类;其余的种质资源归为一类。据此认为,ISSR作为一种信息量高、重演性好的分子标记,应用于茶树遗传多样性和亲缘关系分析是非常有效。

关键词: ISSR, 遗传多样性, 亲缘关系, 茶树

Abstract: Inter-simple sequence repeat (ISSR) is a kind of effective molecular marker developed on the basis of microsatellite, or simple sequence repeat (SSR). ISSR markers were applied to detect the relationship of the thirty-nine cultivars of tea plants. Fifteen primers, selected from fourty primers, were used to amplify the tea samples one hundred and fourty-three DNA bands were amplified, of which one hundred and thirty-one bands were polymorphic.The percentage of polymorphic bands was 91.6%.By cluster analysis based on ISSR markers using UPGMA,the genetic similarity was from 0.21 to 0.95. The GS was the greatest between Manqilan and Zhuyeqilan, and they had the highest genetic similarity and the smallest genetic distance.The GS between Chongqinpipacha and Yinghong 1 was the smallest and they had the lowest genetic similarity and the greatest genetic difference. Cluster analysis classified the 39 cultivars into 3 major groups (GS=0.20). Chongqinpipacha and Yinghong 1 fell into one group, belong to primitive form Jiulongzhu and Huanglong also fell into one group. The rest formed the third group. The results suggest that ISSR is a useful tool for molecular genetic diversity and relationship analysis of tea cultivars.

Key words: ISSR, genetic diversity, relationship, tea plants

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