title: A novel strategy for obtaining kanamycin resistance in Arabidopsis thaliana by silencing an endogenous gene encoding a putative chloroplast transporter.
abstract: The use of bacterial antibiotic resistance markers in transgenic plants raises concerns about horizontal gene transfer to soil bacteria. We report here that kanamycin resistance in Arabidopsis thaliana can be achieved by silencing an endogenous gene encoding a putative chloroplast transporter, which presumably imports kanamycin into chloroplasts to interfere with ribosomal RNA. Homologs of the transporter exist in other plant species, suggesting this strategy may be generally useful for selecting transformed plant cells.
authors.affiliation: Gregor Mendel Institute of Molecular Plant Biology, Austrian Academy of Sciences, Vienna, Austria.
authors.forename: Werner
authors.initials: W
authors.lastname: Aufsatz
authors.forename: Lilian
authors.initials: L
authors.lastname: Nehlin
authors.forename: Viktor
authors.initials: V
authors.lastname: Voronin
authors.forename: Agnes
authors.initials: A
authors.lastname: Schmidt
authors.forename: Antonius J M
authors.initials: AJ
authors.lastname: Matzke
authors.forename: Marjori
authors.initials: M
authors.lastname: Matzke
mesh_terms: D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D017360:Arabidopsis / Q000187:drug effects / Q000235:genetics*; D060365:Chloroplast Proteins; D024881:Drug Resistance, Bacterial / Q000235:genetics*; D020868:Gene Silencing / Q000502:physiology*; D024861:Genetic Enhancement / Q000379:methods*; D007612:Kanamycin / Q000008:administration & dosage*; D026901:Membrane Transport Proteins / Q000235:genetics*; D010940:Plant Proteins / Q000235:genetics*; D030821:Plants, Genetically Modified / Q000187:drug effects / Q000502:physiology*
chemical_list: D000900:Anti-Bacterial Agents; D060365:Chloroplast Proteins; D026901:Membrane Transport Proteins; D010940:Plant Proteins; D007612:Kanamycin