Sarah M. Ardell

This study investigates how modular genotype-phenotype-fitness maps constrain trait evolution, showing that modular systems reach a module-selection balance where traits improve at the same rate.

The paper shows that mutational effects on microbial growth rate follow a pattern of global epistasis that is invariant across environments.

This study shows that bacteriophage Φ21 evolves new host receptor usage through destabilizing mutations that create non-genetic phenotypic heterogeneity in viral particles.