Populations adapt to fluctuating selection using derived and ancestral allelic diversity.

Abstract excerpt

Populations can adapt to changing environments by using allelic diversity, yet whether diversity is recently derived or ancestral is often debated. Although evolution could productively use both types of diversity in a changing environment, their relative frequency has not been quantified. We address this question experimentally using budding yeast strains that harbor a tandem repeat containing URA3 gene, which...

Topics

• Adaptation, Physiological
• Alleles
• Biological Evolution
• Environment
• Mutation Rate
• Saccharomycetales
• Selection, Genetic
• Time Factors