湖北农业科学 ›› 2018, Vol. 57 ›› Issue (17): 106-110.doi: 10.14088/j.cnki.issn0439-8114.2018.17.027

• 生物工程 • 上一篇    下一篇

不同花色白芨四种DNA条形码的序列分析

曾丽娜1a, 刘显义1a, 石建龙2, 梁大勇2, 张洁1a, 张婷婷1a,1b, 任建国1a,1b, 刘红美1a,1b   

  1. 1.贵州医科大学,a.生物与工程学院;b.医药生物技术工程研究中心,贵阳 550025;
    2.贵州省遵义市龙驰生物科技有限公司,贵州 遵义 563100
  • 收稿日期:2018-04-27 出版日期:2018-09-10 发布日期:2020-04-02
  • 通讯作者: 刘红美(1975-),女,贵州遵义人,教授,博士,主要从事药用植物生物技术方面的研究,(电话)18785034546(电子信箱)hmliu@gmc.edu.cn。
  • 作者简介:曾丽娜(1992-),女,贵州毕节人,实验员,主要从事生物技术方面的研究,(电话)15761602127(电子信箱)1500233916@qq.com。
  • 基金资助:
    贵州省重点学科(培育)项目(ZDXK[2016]26号); 贵州医科大学校级重点实验室建设项目(校重点实验室2016002); 贵州医科大学校级工程研究中心建设项目(校工程中心2016002); 贵州省细胞与基因工程创新群体重大研究项目(黔教合KY字[2016]031)

Sequence Analysis of Different Flower Color of Bletilla striata Based on Four DNA Barcoding Markers

ZENG Li-na1a, LIU Xian-yi1a, SHI Jian-long2, LIANG Da-yong2, ZHANG Jie1a, ZHANG Ting-ting1a,1b, REN Jian-guo1a,1b, LIU Hong-mei1a,1b   

  1. 1a.School of Biology and Engineering; 1b.Engineering Research Center of Medical Biotechnology,Guizhou Medical University,Guiyang 550025,China;
    2.Zunyi Longchi Biological Technology Co., Ltd.,Zunyi 563100,Guizhou,China
  • Received:2018-04-27 Online:2018-09-10 Published:2020-04-02

摘要: 采用CTAB法提取2种花色白芨基因组DNA,选用trnH-psbA、rbcL、ITS、LSU D1-D3 4种植物DNA条形码通用引物进行PCR扩增,分析黄花、紫花白芨(Bletilla striata)4种DNA条形码的序列,扩增产物纯化后连接T载体并测序,用DNAMAN软件对测序结果进行多序列比对分析。再根据SNP位点设计引物,利用位点特异性PCR扩增进行鉴定。结果表明,4对植物DNA条形码通用引物均能进行扩增,其中trnH-psbA序列没有发现SNP位点、rbcL序列出现2个SNP位点、ITS序列出现62个SNP位点、LSU D1-D3序列出现3个SNP位点。根据LSU D1-D3序列上的2个SNP位点设计的引物DUAN5(5′-TAGTAACGGCGAGCGAAC-3′)和JDHH(5′-TTATCAGCTTCCTTGCGCCCG-3′)能准确鉴定出黄花白芨,成功获得鉴定黄花白芨的引物序列。

关键词: 白芨(Bletilla striata), DNA条形码, PCR, SNP

Abstract: Genomic DNA was extracted from the two kinds of color of Bletilla striata by using the CTAB method. To analysis the sequence of different flower color of Bletilla striata based on the four kinds of DNA barcode for further identification. Four DNA barcoding markers(trnH-psbA,rbcL,ITS and LSU D1-D3) were selected for PCR. PCR product was ligated into T vector for sequencing. The sequencing results were analyzed by using DNAMAN software. According to the SNP loci of different color of Bletilla striata, the primers were designed for identifying different color of Bletilla striata. Result showed that:two kinds of flower color of Bletilla striata genomic DNA can be amplified based on 4 pairs primers of plant DNA barcode markers and SNP loci were found. None SNP locus was found in trnH-psbA sequence. Two SNP loci were found in rbcL sequence. Sixty-two SNP loci were found in ITS sequence. Three SNP loci were found in LSU D1-D3 sequence. Primer DUAN5(5′-TAGTAACGGCGAGCGAAC-3′) and JDHH(5′-TTATCAGCTTCCTTGCGCCCG-3′) can be used for identifying the yellow flower color of Bletilla striata according to the SNP loci in LSU D1-D3 sequence. The primers were found for identifying the yellow flower color of Bletilla striata.

Key words: Bletilla striata, DNA barcode, PCR, SNP

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