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Plant Mol Biol. 1989 Mar;12(3):329-37. doi: 10.1007/BF00043210.

Transformation of homozygous diploid potato with an Agrobacterium tumefaciens binary vector system by adventitious shoot regeneration on leaf and stem segments.

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Department of Genetics, University of Groningen, Kerklaan 30, 9751 NN, Haren, Netherlands.


Transformed potato (Solanum tuberosum) plants were obtained from homozygous diploid potato by using a transformation procedure in combination with an adventitious shoot regeneration method. Leaf and stem explants were inoculated with an Agrobacterium tumefaciens strain which contained a binary vector (pVU 1011) carrying the neomycin phosphotransferase gene. Shoot regeneration most effectively on stem explants, occurred within six weeks directly from the explants without introducing a callus phase. A strong seasonal influence on transformation efficiencies was observed. Analysis of a number of randomly selected regenerated shoots for their ability to root and form shoots on kanamycin-containing medium shows that over 90% of the regenerated shoots obtained are transformed. In a number of shoots transformation was confirmed by a test for the presence and expression of the NPT-II gene.


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