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园艺学报 ›› 2012, Vol. 39 ›› Issue (8): 1596-.

• 研究报告 • 上一篇    下一篇

月季CBF 转录因子基因的克隆及表达分析

翟俊峰, 王法微, 王南, 宗俊梅, 李海燕   

  1. (1 吉林农业大学生命科学学院,长春 130118;2 吉林农业大学生物反应器与药物开发教育部工程研究中心,长春 130118)
  • 出版日期:2012-08-25 发布日期:2012-08-25

Cloning and Expression Profiling of the Transcription Factor CBF Gene from Rosa hybrida

 DI  Jun-Feng, WANG  Fa-Wei, WANG  南, ZONG  Jun-Mei, LI  Hai-Yan   

  1. (1College of Life Sciences,Jilin Agricultural University,Changchun 130118,China;2Ministry of Education Engineering Research Center of Bioreactor and Pharmaceutical Development,Jilin Agricultural University,Changchun 130118,China)
  • Online:2012-08-25 Published:2012-08-25

摘要: 根据CBF(C-repeat binding factor)AP2/EREBP 保守区设计1 对简并引物,采用PCR 方法对月季‘寒锦4 号’(Rosa hybrida‘Hanjin 4’)CBF 转录因子基因中间片段进行克隆;再根据中间片段区域设计了两对特异引物,采用反向PCR 方法对该基因的5'和3'端的序列进行克隆,将中间片段与反向PCR 产物拼接得到CBF 基因全长序列,命名为RhCBF,GenBank 注册编号为EF582843;该基因序列长758 bp,ORF 为603 bp,编码200 个氨基酸;同时,根据基因序列设计1 对特异引物,利用荧光定量PCR分析月季CBF 在不同逆境胁迫下的表达情况。结果显示低温和盐均可以诱导RhCBF 的表达,而干旱处理不能诱导其表达。

关键词: 月季, CBF 转录因子, 基因, 克隆, 表达

Abstract: We firstly cloned the partial fragment of CBF from Rosa hybrida‘Hanjin 4’using homology cloning methods according to AP2/EREBP conserved sequences. Then,two pairs of specific primers for inverse PCR were designed to clone the 5' and 3' end sequences of CBF gene,respectively. The resulting 5' and 3' end sequences and the partial fragment were combined to a full length sequence,which was named RhCBF and submitted to GenBank(Accession number:EF582843). The full-length of cDNA is 758 bp and the open reading frame(ORF)is 603 bp,encoding 200 amino acids;According to Real-time PCR analysis using a pair of specific primers,we found that salt,low temperature stresses could induce the expression of RhcCBF dramatically,but the mRNA level of RhCBF could hardly induced by drought treatment. These results show that RhCBF would play a critical role in salt and low temperature stresses.

Key words: rose, transcription factor CBF gene, gene, cloning, expression

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