Gavin Rice

@gavinrrice.bsky.social

Postdoc studying evolutionary genetics in @RebeizLab at University of Pittsburgh | K99/R00 NIH scholar | @GeneticsGSA Conferences Committee | #stutter | He/Him

What does it take to evolve a new trait? We have a new paper out that uses the Drosophila sex comb—a male-specific grasping structure found in a subset of drosophilids—as a model to answer this question 1/11

PLOS Biology@plosbiology.org · last mo.

What are the genetic mechanisms for the #evolution of novel traits? This study by @brhopkins92.bsky.social &co links #Drosophila sex comb teeth to expression changes within ancestral cells, leading to diverged metabolic/developmental rates, and a novel structure. 🧪 #AcademicSky plos.io/4gQOnZK

Graphical abstract on the gain of a novel trait in Drosophila. The teeth of the recently evolved, male-specific Drosophila sex comb evolved from a more ancient organ, the mechanosensory bristle. We show that changes in the expression of genes that are shared between mechanosensory bristle and sex comb teeth cells lead to changes in a variety of fundamental cellular processes that together enable the morphological transformation.

The photo, phylogeny, general design are those of the corresponding author(s). They made the bristle schematics in biorender and the fly silhouette is their modified drawing of D. melanogaster from SciDraw (https://doi.org/10.5281/zenodo.3925939).

Looking forward to #Dros26 this week. My lab is recruiting and I would be delighted to chat with anyone interested in grad school/postdoc positions in evolutionary cell biology and developmental genetics. Please reach out if interested!

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new review alert❗️ thought your neighborhood stress response pathway (ISR) only dealt in stress adaptation? well, maybe so. but many cells are apparently quite “stressed out” - even healthy ones. see quoted thread by my phenom co-author @shyama13.bsky.social for a summary! ⬇️

Shyama Nandakumar@shyama13.bsky.social · last yr.

Hello fellow scientists, I'm thrilled to share with you a state of the art review that @lydiagrmai.bsky.social , the bsky-less Deepika Vasudevan and I have been working on for >1 year! Keep reading...! febs.onlinelibrary.wiley.com/doi/full/10....

Closing out the year with a new pre-print! Here, we show that the stress response factor Atf4 is more abundant in female vs male fat (likely directly Doublesex-regulated). This dimorphism renders females more resilient to starvation-induced death. Lots of follow-up work to come!

bioRxiv Cell Biology@biorxiv-cellbio.bsky.social · 2y ago

Sexually dimorphic ATF4 expression in the fat confers female stress tolerance in Drosophila melanogaster https://www.biorxiv.org/content/10.1101/2024.12.27.630478v1

Calling all fly biologists: submit your research for consideration in the “Everything you ever wanted to know about sex” workshop at #Dros25! We hope to highlight diverse science, researchers, and career stages. Email submission to rmgraze@auburn.edu by Wed, Jan 15.

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