Mechanism of Their Formation
نویسندگان
چکیده
can be made between, on the one hand, the F genes present on the traA F' plasmids and the F genes transferred early by an Hfr donor, and, on the other hand, the F genes deleted from the traA F' plasmids and the F genes transferred late by an Hfr donor. A biased representation of proximally and distally transferred chromosomal markers among the traA F' elements was also demonstrated. Taken together, the asymmetrical representation of Hfr genes and the cis dominance of the Tra phenotype of these mutants can best be explained by the hypothesis that the traA F' plasmids are formed by repliconation of the transferred exogenote in a recA recipient.
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