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中国农学通报 ›› 2014, Vol. 30 ›› Issue (12): 267-271.doi: 10.11924/j.issn.1000-6850.2013-1931

所属专题: 生物技术 园艺

• 生物技术科学 • 上一篇    下一篇

番茄转录因子LeMADS-MC正反义植物表达载体的构建

杨永芳 高超 李珊 田慧琴 朱本忠   

  • 收稿日期:2013-07-15 修回日期:2013-08-16 出版日期:2014-04-25 发布日期:2014-04-25
  • 基金资助:
    国家自然科学基金 “番茄果实成熟相关 smallRNAS的全基因组分析与功能鉴定” (31271959)。

Construcrion of Tomato Transcription Factor LeMADS-MC Sense and Antisense Plant Expression Vector

  • Received:2013-07-15 Revised:2013-08-16 Online:2014-04-25 Published:2014-04-25

摘要: 为进一步阐明转录因子家族MADS-Box对番茄果实成熟的调控途径,本研究利用聚合酶链式反应技术(PCR)从番茄(Solanum lycopersicum)cDNA中克隆LeMADS-MC基因和LeMADS-antiMC基因核心片段,将这2个基因通过酶切分别正向连接到pCAMBIA1300-221载体和反向连接到pCXSN载体中,并用冻融法将重组载体导入农杆菌中。获得的重组载体分别通过PCR及酶切鉴定符合预期结果且测序结果与NCBI同源性高达100%。结果成功构建了适合于番茄农杆菌遗传转化的植物表达载体,为下一步通过LeMADS-MC基因研究果实成熟衰老机理奠定了物质基础。

关键词: 甘薯, 甘薯, 主栽品种, 脱毒, 评价

Abstract: To reveal the pathway of MADS-Box transcription factor family regulating tomato fruit ripening, the research obtained tomato (Solanum lycopersicum) LeMADS- MC gene and LeMADS- antiMC gene by the polymerase chain reaction technique (PCR). The genes were connected to the plasmid pCAMBIA1300- 221 and pCXSN, and then transformed into Agrobacterium by Freeze-thaw method. Vectors were identified by PCR and enzyme digestion in the research and the sequence result was homology to NCBI database up to 100%. The results indicated that tomato expression vectors pCAMBIA1300- 221- MC and pCXSN- antiMC was constructed successfully. It would provide base for genetic research on fruit ripening and senescence through LeMADS-MC transgenic fruit.