植物学报

• 技术方法 • 上一篇    下一篇

农杆菌介导巨桉Eg5高效遗传转化

郭利军1,2, 曾炳山1*, 刘英1   

  1. 1中国林业科学研究院热带林业研究所, 广州 510520;
    2海南省农业科学院热带果树研究所, 海口 571100
  • 收稿日期:2012-06-11 修回日期:2012-08-28 出版日期:2013-01-01 发布日期:2012-11-01
  • 通讯作者: 曾炳山

Agrobacterium-mediated High-efficient Transformation of Eucalyptus grandis Clone Eg5

Lijun Guo1,2, Bingshan Zeng1*, Ying Liu1   

  1. 1Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China

    2Tropical Fruit Research Institute, Hainan Academy of Agricultural Sciences, Haikou 571100, China
  • Received:2012-06-11 Revised:2012-08-28 Online:2013-01-01 Published:2012-11-01
  • Contact: Bingshan Zeng

摘要: 以巨桉(Eucalyptus grandis)无性系Eg5叶片为外植体, 探讨了农杆菌(Agrobacterium tumefaciens)侵染时间、共培养pH值和共培养时间对瞬时转化效率的影响, 分析了不同筛选策略对遗传转化植株筛选效果的影响。结果表明, 外植体侵染45分钟, 共培养pH值为5.8, 共培养3天所得到的瞬时转化效率最高; 逐步提高卡那霉素(Km)浓度筛选转基因植株有效, 筛选率达到15%, 转化率达到0.26%。经过GUS染色分析和PCR检测, 证实为转基因植株。

Abstract: In this study, we used Eucalyptus grandis clone Eg5 leaves as explants to study the influence of infection time, co-culture pH values and co-culture time on transient expression efficiency. We analyzed the effects of different selection strategies on transgenic plants. Infection time of 45 min, co-culture pH of 5.8, and co-culture time of 3 days achieved the best transient expression efficiency. Screening transgenic plantlets by gradually improving kanamycin concentration increased the selection efficiency to 15% and transformation efficiency was 0.26%. The plantlets were confirmed by GUS staining and PCR analysis.

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