PMID:11084622

Citation	Foster, PL (2000) Adaptive mutation: implications for evolution. Bioessays 22:1067-74
Abstract	Adaptive mutation is defined as a process that, during nonlethal selections, produces mutations that relieve the selective pressure whether or not other, nonselected mutations are also produced. Examples of adaptive mutation or related phenomena have been reported in bacteria and yeast but not yet outside of microorganisms. A decade of research on adaptive mutation has revealed mechanisms that may increase mutation rates under adverse conditions. This article focuses on mechanisms that produce adaptive mutations in one strain of Escherichia coli, FC40. These mechanisms include recombination-induced DNA replication, the placement of genes on a conjugal plasmid, and a transient mutator state. The implications of these various phenomena for adaptive evolution in microorganisms are discussed.
Links	PubMed PMC2929355 Online version:<1067::AID-BIES4>3.0.CO;2-Q 10.1002/1521-1878(200012)22:12<1067::AID-BIES4>3.0.CO;2-Q
Keywords	Adaptation, Physiological; Animals; Biological Evolution; Escherichia coli/genetics; Humans; Models, Genetic; Mutation; Selection, Genetic
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