Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.7/92
Registo completo
Campo DCValorIdioma
dc.contributor.authorRosas, A.-
dc.contributor.authorGordo, I.-
dc.contributor.authorCampos, P.R.A.-
dc.identifier.citationRosas, A., I.Gordo and P.R.A. Campos (2005) Scaling, genetic drift and clonal interference in the extinction pattern of asexual populations. Phys.Rev. E 72, 012901pt
dc.description.abstractWe investigate the dynamics of loss of favorable mutations in an asexual haploid population. In the current work, we consider homogeneous as well as spatially structured population models. We focus our analysis on statistical measurements of the probability distribution of the maximum population size N(sb) achieved by those mutations that have not reached fixation. Our results show a crossover behavior which demonstrates the occurrence of two evolutionary regimes. In the first regime, which takes place for small N(sb) , the probability distribution is described by a power law with characteristic exponent theta(d) =1.8 +/- 0.01. This power law is not influenced by the rate of beneficial mutations. The second regime, which occurs for intermediate to large values of N(sb), has a characteristic exponent theta(c) which increases as the rate of beneficial mutations grows. These results establish where genetic drift and clonal interference become the main underlying mechanism in the extinction of advantageous mutations.pt
dc.publisherAmerican Physical Societypt
dc.subjectExtinction, Psychologicalpt
dc.subjectGenetic Driftpt
dc.subjectGenetics, Populationpt
dc.subjectReproduction, Asexualpt
dc.titleScaling, genetic drift and clonal interference in the extinction pattern of asexual populationspt
degois.publication.titlePhysical Reviewpt
Aparece nas colecções:EB - Articles

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
Gordo,I._ Phy.Rev._(2005).pdfmain article69,01 kBAdobe PDFVer/Abrir

FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.