食品科学

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植物乳杆菌抗酸相关基因的序列特征性扩增区域(SCAR)标记

李 凯1,朱成龙1,吕 珍1,杨 芮1,但 霞1,刘树文1,2,*   

  1. 1.西北农林科技大学葡萄酒学院,陕西 杨凌 712100;2.陕西省葡萄与葡萄酒工程技术研究中心,陕西 杨凌 712100
  • 出版日期:2013-10-15 发布日期:2013-09-27
  • 通讯作者: 刘树文
  • 基金资助:

    “十二五”国家科技支撑计划项目(2012BAD31B07);中央高校基本科研业务费专项(2109021104);
    国家现代农业产业技术体系建设专项(nycytx-30-ch-03)

Sequence-characterized Amplified Region (SCAR) Marker Linked to Acid Resistance-related Gene in Lactobacillus plantarum

LI Kai1,ZHU Cheng-long1,LÜ Zhen1,YANG Rui1,DAN Xia1,LIU Shu-wen1,2,*   

  1. 1. College of Enology, Northwest A&F University, Yangling 712100, China;
    2. Shaanxi Engineering Research Center for Viti-viniculture, Yangling 712100, China
  • Online:2013-10-15 Published:2013-09-27
  • Contact: LIU Shu-wen

摘要:

以11株抗酸性和8株酸敏性植物乳杆菌为实验菌株,采用群体分组分析法(BSA)和随机扩增多态性DNA(RAPD)技术对55条引物进行筛选,并对基因池中扩增出差异性条带的引物进行单菌株验证,最终获得1个抗酸性RAPD标记:S116-680;将抗酸性RAPD特异片段回收,与pGEM-T Easy载体连接后测序;根据序列信息设计了一对特异性引物,该对引物能在11株抗酸性菌株中稳定扩增出一条680bp的特异性条带,命名为SA-680抗酸性相关标记。

关键词: 植物乳杆菌, 抗酸相关基因, RAPD标记, SCAR标记

Abstract:

Totally 11 acid-resistant Lactobacillus plantarum strains and 8 acid-sensitive Lactobacillus plantarum strains
were investigated, and random amplified polymorphic DNA (RAPD) and bulked segregate analysis (BSA) techniques were
employed in this study. One RAPD marker S116-680 related to acid resistance in Lactobacillus plantarum was obtained
through the selection from 55 random primers and the confirmation in a single Lactobacillus plantarum strain. The specific
fragments were recovered and ligated into pGEM-T Easy vector, and then sequenced. According to the sequence information,
a pair of specific primers (SA1/SA2) were designed, and SA1/SA2 with stable amplification of a 680bp specific band from
11 acid-resistant strains, was named as SA-680 acid resistance-related marker.

Key words: Lactobacillus plantarum, acid-resistant gene, RAPD marker, SCAR marker

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