Adaptive evolution on neutral networks

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dc.creatorWilke, Claus O.
dc.date2001-01-03
dc.date.accessioned2026-07-07T05:45:14Z
dc.date.available2026-07-07T05:45:14Z
dc.descriptionWe study the evolution of large but finite asexual populations evolving in fitness landscapes in which all mutations are either neutral or strongly deleterious. We demonstrate that despite the absence of higher fitness genotypes, adaptation takes place as regions with more advantageous distributions of neutral genotypes are discovered. Since these discoveries are typically rare events, the population dynamics can be subdivided into separate epochs, with rapid transitions between them. Within one epoch, the average fitness in the population is approximately constant. The transitions between epochs, however, are generally accompanied by a significant increase in the average fitness. We verify our theoretical considerations with two analytically tractable bitstring models.
dc.description16 pages, 4 eps figures, Latex (academic press style file), submitted to the Bulletin of Mathematical Biology
dc.identifierhttps://arxiv.org/abs/physics/0101021
dc.identifierhttp://arxiv.org/abs/physics/0101021
dc.identifierBull. Math. Biol. 63:715-730, 2001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/83927
dc.subjectBiological Physics
dc.subjectStatistical Mechanics
dc.subjectNeural and Evolutionary Computing
dc.subjectAdaptation and Self-Organizing Systems
dc.subjectPopulations and Evolution
dc.titleAdaptive evolution on neutral networks
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