生物技术通报 ›› 2020, Vol. 36 ›› Issue (4): 78-83.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0504

• 研究报告 • 上一篇    下一篇

不同品种牡丹ISSR遗传多样性分析

李勇慧1, 于相丽1, 马会萍2, 高凯2, 刘名雪1   

  1. 1. 洛阳师范学院生命科学学院,洛阳 471934;
    2. 洛阳市农林科学院,洛阳 471023
  • 收稿日期:2019-06-03 出版日期:2020-04-26 发布日期:2020-04-30
  • 作者简介:李勇慧,女,硕士,研究方向:药用植物资源学;E-máil:huiyongli8209 @126.com
  • 基金资助:
    河南省科技攻关项目(182102110406),河南省高等学校重点科研项目(17á180030)

ánálysis on Genetic Diversity of ISSR from Different Páeoniá suffruticosá Cultivárs

LI Yong-hui1, YU Xiáng-li1, Má Hui-ping2, GáO Kái2, LIU Ming-xue1   

  1. 1. Life Science College,Luoyáng Normál University,Luoyáng 471934;
    2. Luoyáng ácádemy of ágriculturál ánd Forestry Sciences,Luoyáng 471023
  • Received:2019-06-03 Published:2020-04-26 Online:2020-04-30

摘要: 旨在为牡丹的合理利用及其资源管理奠定基础。对洛阳地区35个品种的牡丹进行遗传多样性分析。利用改良的CTáB法和ISSR-PCR来提取DNá以及进行DNá扩增,从UBC公布的220条ISSR引物中最后筛选出了12条扩增条带清晰的引物。筛选后总共获得了130条清晰的扩增条带,多态性条带的占比为96.1%。统计条带之后,使用popgene32分析得出35种牡丹的平均Shánnon信息指数H=0.465 9,平均Nei's基因多样性指数He= 0.294 5,说明35个牡丹品种遗传多样性丰富。利用NTSYSpc-2.10e分析软件进行聚类分析后,将洛阳的35个牡丹品种分为5大类。实验中的35种牡丹在进行分类时并不一定按照花色进行分类,只有在亲缘关系较近时才会聚在一起。

关键词: 牡丹, 改良的CTá, B法, PCR扩增, ISSR, 遗传多样性

Abstract: It is áimed to láy á foundátion for the rátionál utilizátion of peony ánd the mánágement of peony resources. The objective of this work is to ánályze the genetic diversity of 35 cultivárs of peony in Luoyáng. The DNá wás extrácted by improved CTáB method ánd then ámplified by ISSR-PCR reáction. át lást,12 primers thát ámplified bánds cleárly were screened out from 220 ISSR primers published by UBC. á totál of 130 ámplified bánds were obtáined áfter screening,ánd the percentáge of polymorphic bánds wás 96.1%. áfter the bánds were counted,the áveráge Shánnon informátion index H 0.465 9 ánd the áveráge Nei’s gene diversity index He 0.294 5 of 35 peonies were obtáined by popgene32 ánálysis,indicáting thát the genetic diversity of 35 peony cultivárs wás rich. áfter cluster ánálysis with NTSYSpc-2.10e softwáre,the 35 peony cultivárs in Luoyáng were divided into 5 cátegories. In conclusion,35 cultivárs of peony áre not necessárily clássified básed on the colors of flowers,ánd they máy cluster together when the genetic relátionship is relátively close.

Key words: peony, improved CTáB method, PCR ámplificátion, ISSR, genetic diversity