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Title

Competition-colonization dynamics: an ecology approach to quasispecies dynamics and virulence evolution in RNA viruses.

AuthorsOjosnegros Martos, Samuel ; Beerenwinkel, Niko; Domingo, Esteban
Keywordsfitness, mutant spectrum
Foot-and-mouth disease virus
Attenuation
Space-structured habitat
Density dependent selection
Issue Date25-Feb-2010
PublisherLandes Bioscience
CitationCommunitative and Integrative Biology 3: 333- 336 (2010)
AbstractA single and purified clone of foot-and-mouth disease virus diversified in cell culture into two subpopulations that were genetically distinct. The subpopulation with higher virulence was a minority and was suppressed by the dominant but less virulent one. These two populations follow the competitioncolonization dynamics described in ecology. Virulent viruses can be regarded as colonizers because they killed the cells faster and they spread faster. The attenuated subpopulation resembles competitors because of its higher replication efficiency in coinfected cells. Our results suggest a new model for the evolution of virulence which is based on interactions between components of the quasispecies. Competition between viral mutants takes place at two levels, intracellular competition and competition for new cells. The two strategies are subjected to densitydependent selection
URIhttp://hdl.handle.net/10261/213358
Identifiersissn: 1942-0889
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