FREQUENCY-DEPENDENT SELECTION FOR PLASMID-CONTAINING CELLS OF ESCHERICHIA COLI | Zendy

Julian Adams | Zendy; Thomas R. Kinney | Zendy; Susan D. Thompson | Zendy; L. M. Rubin | Zendy; Robert B. Helling | Zendy

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FREQUENCY-DEPENDENT SELECTION FOR PLASMID-CONTAINING CELLS OF ESCHERICHIA COLI

Author(s) -

Julian Adams,

Thomas R. Kinney,

Susan D. Thompson,

L. M. Rubin,

Robert B. Helling

Publication year - 1979

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/91.4.627

Subject(s) - colicin , plasmid , biology , strain (injury) , escherichia coli , genetics , selection (genetic algorithm) , bacteriocin , microbiology and biotechnology , enterobacteriaceae , bacteria , gene , anatomy , artificial intelligence , computer science

Colicin-producing plasmid-containing cells of E. coli exhibit frequency dependent selection when grown in glucose-limited continuous culture with the corresponding plasmid-free strain. The bases of this frequency-dependent effect are shown to be (1) the lower growth rate of the plasmid-containing strain under these conditions, and (2) the production of colicin, which attenuates the growth rate of the plasmid-free strain. These results are discussed in relationship to the maintenance of genetic variation in prokaryotes.

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