Jeffrey S. Groh

The paper identifies a polymorphic transcription factor, SDMYB, responsible for daily sex alternation in avocado and related species, showing balancing selection over millions of years.

This paper identifies distinct inheritance mechanisms controlling heterodichogamy in two Juglandaceae genera, showing allelic dominance reversal and cis-regulatory divergence at the GFAFL gene.

This paper identifies two ancient structural variants in walnut and hickory species that control heterodichogamy, a mating system with distinct genetic mechanisms in each genus.

The paper shows that local ancestry in hybrid swordtail fish populations is repeatable due to strong early selection, and this repeatability increases with deeper evolutionary divergence.