食品科学 ›› 2007, Vol. 28 ›› Issue (12): 327-331.

• 生物工程 • 上一篇    下一篇

农杆菌介导的反义LeERF2基因转化番茄

 励映聪, 朱本忠, 罗云波   

  1. 中国农业大学食品科学与营养工程学院; 中国农业大学食品科学与营养工程学院 北京100083; 北京100083;
  • 出版日期:2007-12-15 发布日期:2011-11-22

Agrobacterium-mediated Transformation of Tomato with Anti-LeERF2 Gene

 LI  Ying-Cong, ZHU  Ben-Zhong, LUO  Yun-Bo   

  1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Online:2007-12-15 Published:2011-11-22

摘要: 利用根癌农杆菌(Agrobacterium tumefaciens)介导的叶盘法将LeERF2反义基因导入中蔬四号番茄(Lycopersicon esculentumcv.No.4 Zhongshu)进行遗传转化研究。在卡那霉素选择压力下获得的再生植株,经过PCR、点杂交和Southern杂交鉴定,证实了该反义基因已导入番茄基因组中,共获得了25棵转基因植株,并建立了一个高效的番茄转化体系。Northern杂交结果表明,转反义LeERF2基因番茄果实外果皮LeERF2基因表达水平比野生型番茄低。

关键词: 番茄, 反义LeERF2基因, 遗传转化

Abstract: Agrobacterium-mediated leaf disc transformation used to introduce the Anti-LeERF2 gene into tomato (Lycopersicon esculentum cv. No.4 Zhongshu) was studied. The transformed plants obtained under the selection pressure of Kanamycin were identified by the PCR analysis, dot blot and Southern blot, which showed that the target gene was transferred into the plants and 25 antisense LeERF2 transgenic tomato plants were produced. In addition, the efficient tomato transformation system was developed. The result of Northern blot indicated the mRNA of LeERF2 in fruit exocarps of antisense plants was lower than thatof wild type.

Key words: tomato, antisense LeERF2 gene, tomato gentic transformation