ABSTRACT Today’s agriculture production relies on the development and deployment of new technologies, including genetic engineering, which essentially relies on transformation techniques to introduce foreign DNA into genomes. Different selectable marker genes are widely used for the efficient transformation of crop plants, and in most cases, selection is based on antibiotic or herbicide resistance. Although genetically engineered traits provide valuable alternatives to those available through conventional breeding, crops genetically modified without the use of antibiotic- or herbicide-resistant genes by inserting native plant DNA into their genomes as selection markers is an alternative approach. Currently, efforts are concentrated on the use of native plant genes as selection markers for routine plant transformation. Transgenic plants produced by the use of these marker genes do not rely on antibiotic or herbicide resistance after transformation. In this review, we reviewed the range of native plant selectable marker genes that have been developed for use in plant transformation to produce transgenic plants.
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