Eichholtz, D A Expression of mouse dihydrofolate reductase gene confers methotrexate resistance in transgenic petunia plants. [electronic resource] - Somatic cell and molecular genetics Jan 1987 - 67-76 p. digital Publication Type: Journal Article ISSN: 0740-7750 Standard No.: 10.1007/BF02422300 doi Subjects--Topical Terms: AnimalsChimeraDNA--geneticsDrug ResistanceGenetic VectorsMethotrexate--pharmacologyMiceMosaic Viruses--geneticsMutationNucleic Acid HybridizationPlants--geneticsPlasmidsTetrahydrofolate Dehydrogenase--geneticsTransformation, Genetic