Journal of Integrative Agriculture ›› 2015, Vol. 14 ›› Issue (2): 305-313.DOI: 10.1016/S2095-3119(14)60855-8

• 论文 • 上一篇    下一篇

Developing transgenic maize (Zea mays L.) with insect resistance and glyphosate tolerance by fusion gene transformation

 SUN He, LANG Zhi-hong, LU Wei, ZHANG Jie, HE Kang-lai , ZHU Li, LIN Min, HUANG Da-fang   

  1. 1、Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
    2、State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of
    Agricultural Sciences, Beijing 100193, P.R.China
  • 收稿日期:2014-02-17 出版日期:2015-02-01 发布日期:2015-02-11
  • 通讯作者: LANG Zhi-hong, Tel/Fax: +86-10-82109857,E-mail: langzhihong@caas.cn; HUANG Da-fang, Tel/Fax: +86-10-82109857, E-mail: huangdafang@caas.cn
  • 作者简介:SUN He, Mobile: 15010110522, E-mail: ndsh@163.com;
  • 基金资助:

    The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (30771383), the Genetically Modified Organisms Breeding Major Projects, China (2013ZX08003-001) and the National Basic Research Program of China (2009CB118902).

Developing transgenic maize (Zea mays L.) with insect resistance and glyphosate tolerance by fusion gene transformation

 SUN He, LANG Zhi-hong, LU Wei, ZHANG Jie, HE Kang-lai , ZHU Li, LIN Min, HUANG Da-fang   

  1. 1、Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
    2、State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of
    Agricultural Sciences, Beijing 100193, P.R.China
  • Received:2014-02-17 Online:2015-02-01 Published:2015-02-11
  • Contact: LANG Zhi-hong, Tel/Fax: +86-10-82109857,E-mail: langzhihong@caas.cn; HUANG Da-fang, Tel/Fax: +86-10-82109857, E-mail: huangdafang@caas.cn
  • About author:SUN He, Mobile: 15010110522, E-mail: ndsh@163.com;
  • Supported by:

    The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (30771383), the Genetically Modified Organisms Breeding Major Projects, China (2013ZX08003-001) and the National Basic Research Program of China (2009CB118902).

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摘要： Using linker peptide LP4/2A for multiple gene transformation is considered to be an effective method to stack or pyramid several traits in plants. Bacillus thuringiensis (Bt) cry gene and epsps (5-enolpyruvylshikimate-3-phosphate synthase) gene are two important genes for culturing pest-resistant and glyphosate-tolerant crops. We used linker peptide LP4/2A to connect the Bt cry1Ah gene with the 2mG2-epsps gene and combined the wide-used manA gene as a selective marker to construct one coordinated expression vector called p2EPUHLAGN. The expression vector was transferred into maize by Agrobacterium tumefaciens-mediated transformation, and 60 plants were obtained, 40% of which were positive transformants. Molecular detection demonstrated that the two genes in the fusion vector were expressed simultaneously and spliced correctly in translation processing; meanwhile bioassay detection proved the transgenic maize had preferable pest resistance and glyphosate tolerance. Therefore, linker peptide LP4/2A provided a simple and reliable strategy for producing gene stacking in maize and the result showed that the fusion gene transformation system of LP4/2A was feasible in monocot plants.

关键词: LP4/2A , gene stacking , transgenic maize , insect resistance , glyphosate tolerance

Abstract: Using linker peptide LP4/2A for multiple gene transformation is considered to be an effective method to stack or pyramid several traits in plants. Bacillus thuringiensis (Bt) cry gene and epsps (5-enolpyruvylshikimate-3-phosphate synthase) gene are two important genes for culturing pest-resistant and glyphosate-tolerant crops. We used linker peptide LP4/2A to connect the Bt cry1Ah gene with the 2mG2-epsps gene and combined the wide-used manA gene as a selective marker to construct one coordinated expression vector called p2EPUHLAGN. The expression vector was transferred into maize by Agrobacterium tumefaciens-mediated transformation, and 60 plants were obtained, 40% of which were positive transformants. Molecular detection demonstrated that the two genes in the fusion vector were expressed simultaneously and spliced correctly in translation processing; meanwhile bioassay detection proved the transgenic maize had preferable pest resistance and glyphosate tolerance. Therefore, linker peptide LP4/2A provided a simple and reliable strategy for producing gene stacking in maize and the result showed that the fusion gene transformation system of LP4/2A was feasible in monocot plants.

Key words: LP4/2A , gene stacking , transgenic maize , insect resistance , glyphosate tolerance