John L. Fitzpatrick

Evolutionarily labile pachytene piRNAs target an altered set of mRNAs in male hybrids of house mouse subspecies

This study examines the evolutionary dynamics of pachytene piRNAs in mouse subspecies hybrids, showing that rapidly evolving piRNA genes can gain or lose mRNA targets in hybrids.

Male social dominance affects access to mates but not female mate choice in a livebearing fish

The paper tests whether male social dominance influences female mate choice and access to mates in pygmy halfbeaks, finding dominance affects access but not female preference.

Habitat complexity alters the strength of sexual selection on brain size in a livebearing fish

The paper investigates how habitat complexity affects sexual selection on brain size and ornamentation in pygmy halfbeaks, finding stronger selection for brain size in open environments.

Inbreeding preference emerges in female guppies in a socially complex setting

This study shows female guppies preferentially mate with related males in complex social settings, challenging previous findings on inbreeding avoidance.