Broer I, Dröge Laser W, Barker R, Neumann K, Klipp W, Puhler A. Identification of the Agrobacterium tumefaciens C58 T-DNA genes e and f and their impact on crown gall tumour formation. Plant Mol Biol. 1995;27:41-57 pubmed
..DNA homology studies with the f gene region revealed a mosaic-like DNA structure, indicating that this locus might be the result of genetic exchanges between different Agrobacterium strains during evolution. ..