M. Hartfield

Polygenic selection to a changing optimum under self-fertilisation

This paper investigates how self-fertilisation affects polygenic adaptation to a new environment, showing that high selfing can enhance long-term fitness despite challenges like linkage disequilibrium.

Approximating the coalescent under facultative sex

The paper investigates whether the standard coalescent can approximate the evolutionary history of facultative sexual species under different sex frequencies and determines when a coalescent effective population size exists.

Using singleton densities to detect recent selection in Bos taurus

This paper uses the Singleton Density Score method to detect recent selection in Holstein cattle, identifying candidate genes but finding no strong evidence for selection on milk traits or stature.

Selective sweeps under dominance and inbreeding

This study examines how dominance and inbreeding via self-fertilization influence hard and soft sweep signatures in evolutionary genetics.

Coalescence and linkage disequilibrium in facultatively sexual diploids

This study models LD decay in facultatively sexual diploids, showing that meiotic recombination scales with sex probability, while mitotic gene conversion is critical under rare sex.