华北农学报 ›› 2006, Vol. 21 ›› Issue (3): 77-80. doi: 10.3321/j.issn:1000-7091.2006.03.018

所属专题: 甜瓜

• 论文 • 上一篇    下一篇

直接扩增甜瓜小卫星DNA指纹图谱

王掌军1,2, 王建设1, 刘玲1, 刘生祥2, 陈素生2, 许勇1, 王永健1   

  1. 1. 国家蔬菜工程技术研究中心, 北京 100089;
    2. 宁夏大学农学院, 宁夏银川 750021
  • 收稿日期:2005-07-23 出版日期:2006-06-28
  • 通讯作者: 王建设
  • 作者简介:王掌军(1978- ),男,甘肃天水人,硕士,主要从事分子遗传育种研究工作。
  • 基金资助:
    国家863高科技发展计划项目(2002AA244021);北京市重大科技合同项目(H022020130130)

Direct Amplification Minisatellite DNA Fingerprinting on Melon(Cucumis melo L)

WANG Zhang-jun1,2, WANG Jian-she1, LIU Ling1, LIU Sheng-xiang2, CHEN Su-sheng2, XU Yong1, WANG Yong-jian1   

  1. 1. National Engineering Research Center for Vegetables, Beijing 100089, China;
    2. Agricutural College of Ningxia University, Yinchuan 750021, China
  • Received:2005-07-23 Published:2006-06-28

摘要: 以小卫星DNA YNZ22核心序列为引物,甜瓜DNA为模板,在甜瓜上研究了直接扩增小卫星DNA(DAMD)的优化反应体系,结果表明:在20μL的反应体系中,5种主要成分Taq DNA聚合酶、Mg2+、引物、模板DNA和dNTPs的最适浓度分别为1U,2.5mmol/L,0.5mmol/L,30ng,5mmol/L。在优化的DAMD-PCR反应体系下,利用该引物在28个甜瓜品种上构建了直接扩增小卫星DNA(DAMD)的指纹图谱,分析结果表明,该引物在28个甜瓜品种上共扩增出13位点,其中9位点具有多态性,多态性条带比率为69%,可一次性从28个甜瓜品种中鉴别出其中的21个,鉴别率高达75%。

关键词: 甜瓜, 小卫星DNA, 指纹图谱

Abstract: The optimal reaction of DAMD(Direct Amplification of Minisatellite DNA by PCR) in melon was studied with a minisatellite primer YNZ22 and melon template DNA.The results showed that the optimum concentration of five important components i.e.Taq DNA polymerase,Mg2+,primer,template DNA and dNTPs in 20μL reaction system were 1U,2.5mmol/L,0.5mmol/L,30 ng,5mmol/L respectively.The minisatellite DNA fingerprinting of 28 melon cultivars were established by using optimum system with primer YNZ22.The primer could produce 13 bands,and 9 bands were polymorphic bands,the percentage of polymorphic bands(PPB) was 69%.The primer could identify 21 of 28 cultivars at once,its identification rate was 75%.

Key words: Cucumis melo, Minisatellite DNA, Fingerprinting map

中图分类号: 

引用本文

王掌军, 王建设, 刘玲, 刘生祥, 陈素生, 许勇, 王永健. 直接扩增甜瓜小卫星DNA指纹图谱[J]. 华北农学报, 2006, 21(3): 77-80. doi: 10.3321/j.issn:1000-7091.2006.03.018.

WANG Zhang-jun, WANG Jian-she, LIU Ling, LIU Sheng-xiang, CHEN Su-sheng, XU Yong, WANG Yong-jian. Direct Amplification Minisatellite DNA Fingerprinting on Melon(Cucumis melo L)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(3): 77-80. doi: 10.3321/j.issn:1000-7091.2006.03.018.

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