Yuseob Kim

Noncovarying storage effect: balancing and positive directional selection on mutant alleles that amplify random fitness and demographic fluctuations

This study identifies a novel evolutionary force, the noncovarying storage effect, that maintains genetic variation and amplifies population size fluctuations through interactions between demography and selection.

Positive feedback between demographic and selective fluctuations can greatly amplify the random fluctuation of population size

This study shows that positive feedback between demographic and selective fluctuations can amplify population size variability by favoring mutations that increase fitness fluctuations.

Reassortment, positive selection, and the inter-segmental patterns of divergence and polymorphism in influenza virus H3N2

The paper quantifies reassortment rates and analyzes inter-segmental divergence patterns in H3N2 influenza virus, finding that positive selection on HA reduces synonymous polymorphism.