title: Extra DNA in the T region of crown gall Ti-plasmid pTiA66.
abstract: The mutant tumorigenic phenotype of pTiA66, a derivative of the broad host range octopine Ti-plasmid pTiA6, results from a 2.6-Kb insertion into EcoRI fragment 32g of the T region, which has been implicated in the auxin synthesis disruption tumor character. The inserted DNA is closely related to sequences from BamHI fragment 11 of the same or a related plasmid but probably originally derives from a chromosomal sequence.
mesh_terms: D002874:Chromosome Mapping; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000235:genetics; D009154:Mutation; D010941:Plant Tumors / Q000382:microbiology; D010957:Plasmids; D012231:Rhizobium / Q000235:genetics*
chemical_list: D004251:DNA Transposable Elements; D004269:DNA, Bacterial