遗传 ›› 2009, Vol. 31 ›› Issue (6): 663-667.doi: 10.3724/SP.J.1005.2009.00663

• 研究报告 • 上一篇    下一篇

甜蛋白Brazzein基因在番茄果实中的特异表达

尹涛1;卢虹玉2;张上隆1;刘敬梅3;陈大明1, 4   

  1. 1. 浙江大学园艺系, 杭州310029;
    2. 广东海洋大学食品科技学院, 湛江 524088;
    3. 北京市蔬菜研究中心, 北京 100089;
    4. Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, USA
  • 收稿日期:2008-11-27 修回日期:2008-12-21 出版日期:2009-06-10 发布日期:2009-06-10
  • 通讯作者: 张上隆

Fruit-specific expression of sweet protein Brazzein in transgenic tomato plants

YIN Tao1;LU Hong-Yu2;ZHANG Shang-Long1;LIU Jing-Mei3;CHEN Da-Ming1, 4   

  1. 1. Department of Horticulture, Zhejiang University, Hangzhou 310029, China;
    2. College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China;
    3. Beijing Vegetable Research Center, Beijing 100089, China;
    4. Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, USA
  • Received:2008-11-27 Revised:2008-12-21 Online:2009-06-10 Published:2009-06-10
  • Contact: ZHANG Shang-Long

摘要: 西瓜(Citrullus vulgaris S.)来源的AGPL1启动子在番茄(Lycopersicon esculentum L.)果实中具有较强的特异性驱动功能。将该启动子与甜味蛋白基因Brazzein融合构建植物表达载体, 通过根癌农杆菌(Agrobacterium tumefaciens)介导法成功地进行了对番茄的遗传转化, 获得转化植株。组织化学法、PCR特异扩增、Southern杂交分析及RT-PCR检测, 表明Brazzein基因已整合到转基因番茄植株基因组中并且稳定表达。通过AGPL1果实特异启动子的调控, 在不改变果实其他性状的前提下提高了番茄果实甜味品质, 并为甜蛋白的生产提供经验。

关键词: 番茄, 甜蛋白基因Brazzein, AGPL1启动子, 果实特异, 遗传转化

Abstract: The AGPL1 (ADP-glucose pyrophosphorylase large subunit 1) promoter from watermelon (Citrullus vulgaris S.) has proved to exhibit fruit-specific expression patterns in tomato (Lycopersicon esculentum L.). A plant expression vec-tor harboring sweet-taste protein, Brazzein, directed by AGPL1 promoter, was constructed and transferred into tomato plants through Agrobacterium-mediated transform methods. Histochemical staining assay, PCR screening, Southern blotting analysis and RT-PCR analysis showed that Brazzein gene was successfully integrated into the genome of transgenic tomato plants with stable expression. Sweet-taste fruits were produced under control of fruit-specific AGPL1 promoter, whereas other parameters of fruit quality were largely unchanged.