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Agrobacterium tumefaciens-Mediated Genetic Transformation of Narrowleaf Plantain
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Higher plant transformation: principles and molecular tools.

Sylvester Anami1, Elizabeth Njuguna, Griet Coussens

  • 1Laboratory of Plant Genetics and Systems Biology, Department of Pure and Applied Sciences, Technical University of Mombasa, Mombasa, Kenya.

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Genetic transformation in plants, a key tool in plant biotechnology, enables the creation of improved crops. This review covers principles and molecular tools for producing transgenic plants.

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Area of Science:

  • Plant Biology
  • Biotechnology
  • Genetics

Background:

  • Genetic transformation in higher plants, established 30 years ago, has significantly advanced plant biology research and crop improvement.
  • It has spurred the development of the new field of plant biotechnology.
  • This technology is crucial for understanding plant genetics and developing novel agricultural applications.

Purpose of the Study:

  • To review the principles and molecular tools of genetic transformation in higher plants.
  • To discuss prerequisite methods for producing transgenic plants.
  • To examine key molecular components and future developments in transgene technology.

Main Methods:

  • In vitro regeneration techniques, including somatic embryogenesis and organogenesis.
  • Agrobacterium tumefaciens-mediated transferred (T)-DNA transfer and direct DNA transfer methods.
  • Assembly of genes of interest with promoters and termination signals using GATEWAY-derived binary vectors in Escherichia coli.

Main Results:

  • Selectable marker genes facilitate the selection of transformed plant cells and tracking of genes across generations.
  • Reporter genes enable visualization of promoter activities, protein localization, and protein-protein interactions.
  • GATEWAY-derived binary vectors serve as versatile cloning tools for gene assembly.

Conclusions:

  • Genetic transformation is a fundamental technique in modern plant science and biotechnology.
  • Understanding the molecular tools and principles is essential for advancing plant research and crop development.
  • Future developments in transgene technology hold significant promise for further innovation in plant biotechnology.