Asynchronous abundance fluctuations can drive giant genotype frequency fluctuations.

ABSTRACT: Large stochastic population abundance fluctuations are ubiquitous across the tree of life^1-7, impacting the predictability of population dynamics and influencing eco-evolutionary outcomes. It has generally been thought that these large abundance fluctuations do not strongly impact evolution, as the relative frequencies of alleles in the population will be unaffected if the abundance of all alleles fluctuate in unison. However, we argue that large abundance fluctuations can lead to significant genotype frequency fluctuations if different genotypes within a population experience these fluctuations asynchronously. By serially diluting mixtures of two closely related E. coli strains, we show that such asynchrony can occur, leading to giant frequency fluctuations that far exce

SUBMITTER: Ascensao JA 

PROVIDER: S-EPMC10983864 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature