The review considers the basic strategies used to produce biologically safe marker-free transgenic plants and analyzes their advantages and disadvantages. The systems of positive and negative selection as safer approaches for transformant identification are briefly described. The application of co-transformation, transposition, and site-specific recombination for production of marker-free plants is described. Special attention is paid to novel approaches to create marker-free plants initially containing no selective genes in their genomes.
Russian Journal of Plant Physiology – Springer Journals
Published: Dec 28, 2012
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