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Adaptive evolution in a spatially structured asexual population
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Autores
Orientador(es)
Resumo(s)
We study the process of adaptation in a spatially structured asexual haploid population. The model assumes a local competition for replication, where each organism interacts only with its nearest neighbors. We observe that the substitution rate of beneficial mutations is smaller for a spatially structured population than that seen for populations without structure. The difference between structured and unstructured populations increases as the adaptive mutation rate increases. Furthermore, the substitution rate decreases as the number of neighbors for local competition is reduced. We have also studied the impact of structure on the distribution of adaptive mutations that fix during adaptation.
Descrição
Palavras-chave
Evolution, Molecular Demography Adaptation, Biological/genetics Amino Acid Substitution/genetics Competitive Behavior Reproduction, Asexual/physiology
Contexto Educativo
Citação
Gordo, I., Campos, P.R.A. (2006). "Adaptive evolution in a spatially structured asexual population". Genetica, 127: 217-229