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    • Keywords


      Agrobacterium; regeneration; tomato; transformation

    • Abstract


      We describe a highly efficient and reproducible Agrobacterium-mediated transformation protocol applicable to several varieties of tomato (Solanum lycopersicum, earlier known as Lycopersicum esculentum). Conditions such as co-cultivation period, bacterial concentration, concentration of benzyl amino purine (BAP), zeatin and indole acetic acid (IAA) were optimized. Co-cultivation of explants with a bacterial concentration of 108 cells/ml for three days on 2 mg/l BAP, followed by regeneration on a medium containing 1 mg/ml zeatin resulted in a transformation frequency of 41.4%. Transformation of tomato plants was confirmed by Southern blot analysis and 𝛽-glucuronidase (GUS) assay. The protocol developed showed very high efficiency of transformation for tomato varieties Pusa Ruby, Arka Vikas and Sioux. The optimized transformation procedure is simple, efficient and does not require tobacco, Petunia, tomato suspension feeder layer or acetosyringone.

    • Author Affiliations


      Manoj K Sharma1 Amolkumar U Solanke1 Dewal Jani1 Yogendra Singh2 Arun K Sharma1

      1. Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi 110 021, India
      2. Institute of Genomics and Integrative Biology, Delhi 110 007, India
    • Dates

  • Journal of Biosciences | News

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      Posted on July 25, 2019

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