John J. Schenk

@johnjschenk.bsky.social

Botanist

Officially recruiting postdocs at GW. If you are interested in genetic novelty, structural variation, or evo genetics please get in touch! We have data sets on mulitple organisms with large population sizes (Drosophila, Megalonaias nervosa) and species in decline (fireflies, mussels, elephants).

Avocados come in 2 varieties - A-types start each day female and switch to male midday. B-types do the reverse. In work just published from the last chapter of my PhD, we show this system evolved 40+million yrs ago and is regulated by alleles of 1 transcription factor www.pnas.org/doi/10.1073/...

Balanced polymorphism in a floral transcription factor underlies the ancient rhythm of daily sex alternation in avocado | PNAS

In avocado and certain wild relatives in Lauraceae, a highly synchronized daily rhythm of floral sex timing promotes cross-pollination between two ...

pnas.org

Finally posted an ad for the postdoc position on my new NSF-funded project—come help build a new method to study plants' responses to environmental variation in space and over time, and figure out interesting ways to use it! Apply by 23 August to ensure consideration. Details: buff.ly/qTvaqvD

This July I had the privilege of representing Ohio University at #Botany2025 with the work I’ve done on flowering plants in the Schenk Lab. It was incredible seeing the diversity of research being done across the country and the passion that drives it. Those who made this possible are tagged below!

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