Abstract
The successful transformation of callus derived protoplasts of the tomato
genotype MSK93 was recently described. Transformants were obtained with
plasmid DNA containing the kanamycin resistance gene from Tn5 with expression
signals from the nos gene as a selectable marker (plasmid pneoΔ18). In addition a
(0. 8 kb) tomato sequence which promoted autonomous replication in
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