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园艺学报 ›› 2009, Vol. 36 ›› Issue (2): 245-250.

• 观赏植物 • 上一篇    下一篇

中国水仙NTMADS1基因表达分析及转化拟南芥研究

陈段芬1,3;高志民1*;彭镇华2**   

  1. 1国际竹藤网络中心,国家林业局竹藤科学与技术重点开放实验室,北京 100102;2中国林业科学研究院林业研究所,北京 100091;3河北农业大学园艺学院,保定 071000)
  • 收稿日期:2008-09-09 修回日期:2009-01-23 出版日期:2009-02-25 发布日期:2009-02-25
  • 通讯作者: 高志民;彭镇华

Expression analysis of NTMADS1 gene in Narcissus tazetta var. chinensis and study on its transformation in Arabidopsis thaliana

CHEN Duan-fen1,3,GAO Zhi-min1*,and PENG Zhen-hua2**   

  1. (1International Center for Bamboo and Rattan, SFA key Laboratory of Bamboo and Rattan Science and Technology, Beijing 100102, China;2 Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;3College of Horticulture , Agriculture University of Hebei , Baoding 071001, China)
  • Received:2008-09-09 Revised:2009-01-23 Online:2009-02-25 Published:2009-02-25
  • Contact: GAO Zhi-min;PENG Zhen-hua

摘要: 利用RT-PCR技术分析了中国水仙(Narcissus tazetta var.chinensis)花器官特征基因NTMADS1在花期不同器官及花不同部位的表达模式。结果表明,该基因只在花器官中表达,且在雄蕊和副冠中的表达量高于雌蕊,在花瓣中未检测到该基因的表达。将该基因置于CaMV 35S启动子控制下,构建到载体pBI121的多克隆位点,获得了包含35S启动子、NTMADS1基因的编码区和NOS终止区域的植物表达载体。在农杆菌介导下将该基因转入模式植物拟南芥(Arabidopsis thaliana)中,获得了卷叶、花期提早和花型改变的转基因植株。

关键词: 中国水仙, NTMADS1基因, 植物表达载体, 转化, 拟南芥

Abstract:

The expression pattern of NTMADS1 gene, a flower organ identity gene from Narcissus tazetta var. chinensis, was analyzed by RT-PCR. The results revealed that the transcript of NTMADS1 was not detectable in vegetative tissues, but only in flowers. Within open flower organs, transcript levels were much higher in stamen and corana than in pistil and barely detectable in petals. NTMADS1 gene was subcloned into the multiple cloning sites of pBI121 vector drived by 35S promoter, and was transferred into Arabidopsis thaliana by Agrobacterium tumefaciens. Ectopic expression of NTMADS1 in transgenic A. thaliana plants resulted curly leaves, early flowering and shape-changed flowers.

Key words: Narcissus tazetta var. chinensis, NTMADS1 gene, tissue specific expression, transformation, Arabidopsis thaliana

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