Webapparent lag time is caused by the exclusive growth of an initially small phenotypic subpopulation (Fig 1C). The phenotypic subpopulation could be generated in two ways. First, the cells could ‘anticipate’ the environmental change by stochastically switching phenotype at any time. In this case, adapta- WebThe purpose of this communication is to indicate that there is no evidence in the experiments referred to that compels the interpretation that the phenotypic expression of …

Rates of niche and phenotype evolution lag behind

WebPhenotypic lag may be due to any of the following reasons: (1) The mutagen may inactivate the gene at once, but this inactivity may not become apparent until the products previously made by the gene are diluted to a sufficient degree. A number of cell divisions occur … Web7. sep 2011 · Here, we introduce a simple model to study the evolution of phenotype switching in a finite population subject to random environmental shocks. We compare the successes of competing genotypes with different switching rates, and analyze how the optimal switching rates depend on the frequency of environmental changes. does it snow in camp pendleton

Digital Gene Expression Analysis Provides Insight into the ... - PubMed

WebContinuous environmental change-such as slowly rising temperatures-may create permanent maladaptation of natural populations: Even if a population adapts evolutionarily, its mean phenotype will usually lag behind the phenotype favored in the current environment, and if the resulting phenotypic lag b … WebHowever, the model fails to predict the direction and intensity of selection in environments that fluctuate at moderate frequencies. This suggests that phenotypic lag, wherein … WebWe have recently shown that, in the limit of infinitely small mutations and high mutation rate, the evolution of the phenotypic lag converges to an Ornstein-Uhlenbeck process … fabric for cubicle walls