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Adaptive mutations in bacteria: high rate and small effects

dc.contributor.authorPerfeito, Lília
dc.contributor.authorFernandes, Lisete
dc.contributor.authorMota, Catarina
dc.contributor.authorGordo, Isabel
dc.date.accessioned2013-12-31T18:51:21Z
dc.date.available2013-12-31T18:51:21Z
dc.date.issued2007-08
dc.description.abstractEvolution by natural selection is driven by the continuous generation of adaptive mutations. We measured the genomic mutation rate that generates beneficial mutations and their effects on fitness in Escherichia coli under conditions in which the effect of competition between lineages carrying different beneficial mutations is minimized. We found a rate on the order of 10–5 per genome per generation, which is 1000 times as high as previous estimates, and a mean selective advantage of 1%. Such a high rate of adaptive evolution has implications for the evolution of antibiotic resistance and pathogenicity.por
dc.identifier.citationPerfeito L, Fernandes L, Mota C, Gordo I. Adaptive mutations in bacteria: high rate and small effects. Science. 2007;317(5839):813-5.por
dc.identifier.issn1095-9203
dc.identifier.urihttp://hdl.handle.net/10400.21/3037
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSciencepor
dc.relation.publisherversionhttp://www.sciencemag.org/content/317/5839/813.abstractpor
dc.subjectAdaptation, Biologicalpor
dc.subjectBiological evolutionpor
dc.subjectEscherichia coli/geneticspor
dc.subjectEscherichia coli/physiologypor
dc.subjectGenome, Bacterialpor
dc.subjectMicrosatellite repeatspor
dc.subjectMutationpor
dc.subjectSelection, Geneticpor
dc.titleAdaptive mutations in bacteria: high rate and small effectspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage815por
oaire.citation.startPage813por
oaire.citation.titleSciencepor
oaire.citation.volume317por
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

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