Abstract
Structures consisting of a genetic marker (erythromycin or kanamycin resistance, thymidylate synthetase) flanked by 3.4-kilobase direct repeats (pBR322 sequences) were inserted in 12 different locations of the Bacillus subtilis chromosome. Recombination between the repeats was followed by the loss of the genetic marker. Recombination frequencies found in different locations varied from 1.2 X 10(-5) to 40 X 10(-5) per cell generation. Such differences were highly significant (P less than 0.001).
MeSH Terms
Bacillus subtilis/genetics
Chromosomes, Bacterial
DNA, Bacterial/genetics
Drug Resistance, Microbial/genetics
Genetic Markers
Nucleic Acid Hybridization
Plasmids
Recombination, Genetic
Repetitive Sequences, Nucleic Acid
Thymidylate Synthase/genetics
Transformation, Bacterial
Chemicals
DNA, Bacterial
Genetic Markers
Thymidylate Synthase
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Vagner V
Institut des Biotechnologies, Centre de Recherche de Jouy en Josas, France.
Ehrlich S D
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