Increase in conjugational transmission frequency of nonconjugative plasmids

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Science  08 Apr 1977:
Vol. 196, Issue 4286, pp. 186-187
DOI: 10.1126/science.322280


Addition of Eco RI fragment 6 of the Escherichia coli sex factor F to pSC101 increases the frequency of its transmission by RI-19 and ColVB. Transmission frequencies of pSC101 and two pSC101 chimeras are also increased after the putative transposition of drug resistance element Tn3 from RI-19. These increases may result from addition of an origin of conjugatinal transfer to the plasmids.