Efficient plastid transformation in tobacco using the aphA-6 gene and kanamycin selection.

Autor: Huang FC; ICON Genetics AG, Research Centre Freising, Blumenstrasse 16, 85354 Freising, Germany., Klaus SM, Herz S, Zou Z, Koop HU, Golds TJ
Jazyk: angličtina
Zdroj: Molecular genetics and genomics : MGG [Mol Genet Genomics] 2002 Sep; Vol. 268 (1), pp. 19-27. Date of Electronic Publication: 2002 Aug 21.
DOI: 10.1007/s00438-002-0738-6
Abstrakt: Here we report on the development of a new dominant selection marker for plastid transformation in higher plants using the aminoglycoside phosphotransferase gene aphA-6 from Acinetobacter baumannii. Vectors containing chimeric aphA-6 gene constructs were introduced into the tobacco chloroplast using particle bombardment of alginate-embedded protoplast-derived micro colonies or polyethylene glycol (PEG)-mediated DNA uptake. Targeted insertion into the plastome was achieved via homologous recombination, and plastid transformants were recovered on the basis of their resistance to kanamycin. Variations in kanamycin resistance in transplastomic lines were observed depending on the 5' and 3' regulatory elements associated with the aphA-6 coding region. Transplastomic plants were fertile and showed maternal inheritance of the transplastome in the progeny.
Databáze: MEDLINE