Sentence examples for under a constant selection from inspiring English sources

The rapid rise of resistance suggests that alleles conferring a better fitness in presence of insecticides are already present in susceptible populations and can be promptly selected under a constant selection pressure.

We next considered a growing bacterial population that adapts to a new environment under a constant selection regime where allele 1 has a constant selective advantage s over allele 0. The population starts from a bacterium of genotype 0, which gives rise to an expanding population.

The two populations grow across space under a constant selection regime.

This population is allowed to evolve under a constant selection pressure for mediating two separate responses.

The basic idea was to neutrally evolve P450s under a constant selection pressure in populations that were either monomorphic or highly polymorphic, and observe whether the proteins evolved to different levels of mutational robustness and stability.

Under a constant selection coefficient, the mean realized selection coefficient tracks the true selection coefficient closely during the selection phase, after which it decreases to zero during the drift phase.

These results suggest a constant selection of this functional group through evolution for optimization of nitrogen fixation in the rhizosphere.

Once the resistant colony was established it was maintained with a constant selection protocol.

Our simulations show that forward simulations of a locus assuming a constant selection coefficient do not fully capture the allele frequency dynamics of a QTL under artificial selection on a quantitative trait.

In particular, under any constant selection the divergence of sequences that accumulated one substitution per neutral site since their origin from the common ancestor must already constitute at least one half of the asymptotic divergence at sites under such selection.

Since the probability of increasing the average fitness by random mutations is lower under frequency-dependent selection (see Figure 1), we must conclude that asexual populations face an even bigger challenge to maintain their average fitnesses under frequency dependent selection than under constant selection in a finite population.