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Reposted by Jeff Groh

Graham Coop @gcbias.bsky.social · 5h

We're excited to be recruiting an NIH funded postdoc to work in the Coop lab at UC Davis. We're specifically interested in candidates who are want to work at the intersection of human genetics, GWAS, and population genetics modeling. Please RT

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Jeff Groh @jeffgroh.bsky.social · 1d

Work led by Marius Roesti, "A species interaction kick-starts ecological speciation in allopatry" now published - Varying degrees of divergence associated with presence/absence of a single interacting species predicts strength of prezygotic RI in freshwater stickleback www.pnas.org/doi/10.1073/...

A species interaction kick-starts ecological speciation in allopatry | PNAS

Adaptation to different environments is thought to play a key role in speciation. However, speciation typically begins in allopatry, where reproduc...

www.pnas.org

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Reposted by Jeff Groh

Nature Plants @natplants.nature.com · 8d

New Article: "Ginger genome reveals the SMPED1 gene causing sex-phase synchrony and outcrossing in a flowering plant" rdcu.be/eJPdX

SMPED1, located in a dichogamy-determining region in Alpinia species, controls the timing of sex-organ synchrony.

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Reposted by Jeff Groh

bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 25d

Quantitative system drift https://www.biorxiv.org/content/10.1101/2025.09.17.676933v1

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Reposted by Jeff Groh

Stephen I Wright @stepheniwright.bsky.social · Aug 27

Please share broadly: I am looking for a postdoctoral fellow to work on a collaborative project on the temporal population genomics of invasive Capeweed (using contemporary and herbarium genomics), with ‪‪@shaky-dingo.bsky.social‬ and colleagues

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Reposted by Jeff Groh

James Kitchens @kitchensjn.bsky.social · Aug 19

Excited to share our new preprint for the tskit_arg_visualizer Python package! ARGs can sometimes feel like a black box, so
@yanwong.bsky.social and I have been developing a method to programmatically drawing these graphs.

🔗 arxiv.org/abs/2508.03958

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tskit_arg_visualizer: interactive plotting of ancestral recombination graphs

Summary: Ancestral recombination graphs (ARGs) are a complete representation of the genetic relationships between recombining lineages and are of central importance in population genetics. Recent brea...

arxiv.org

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Reposted by Jeff Groh

Science for Good ☀️ @sciforgood.bsky.social · Jun 26

Fields like Computer Science, Physics/Astronomy, and Chemistry saw the largest increases in NSF GRFP awards in 2025.

Meanwhile, Life Sciences, Social Sciences, Psychology, and Mathematical Sciences experienced the steepest declines—marking a major departure from historical funding patterns.

Shift in NSF GRFP award by field. The color shows the field, and the proportion of grants awarded is shown by the slope and weight of the line.

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Jeff Groh @jeffgroh.bsky.social · Jun 20

Looking forward to #Evol2025! I’ll be presenting on the genetics of a balanced polymorphism for sex timing in hermaphroditic plants in the Reproductive Systems session on June 22 at 11:15 AM

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Reposted by Jeff Groh

Joshua Weitz @joshuasweitz.bsky.social · May 31

How bad will it be? Catastrophic.

Proposed cuts to #NSF, #NIH, and #NASA will set the US R&D landscape back 25 yrs+, cause economic and job loss now, and undermine innovations to come.

But, this is the WH's *proposed* budget.

Speak up now before it is too late.

(inflation adjusted $-s below)

NSF, NASA and NIH budgets per year, inflation adjusted from 2000-2025 along with the proposed cuts. NSF includes research component only. Massive cuts across all sectors, well below support spanning 25 years.

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Jeff Groh @jeffgroh.bsky.social · May 15

Congrats!!

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Reposted by Jeff Groh

Ben Moran @ben-moran.bsky.social · May 1

1/9 Excited to share the preprint for the second half of my PhD with @mollyschumer.bsky.social: Connecting human environmental impacts to hybridization in swordtail fish through genomics, GIS, water chemistry, and histology. Thread below!

#SciSky

www.biorxiv.org/content/10.1...

Increased rates of hybridization in swordtail fish are associated with water pollution

Biodiversity loss can occur when disturbance compromises the reproductive barriers between species, causing them to collapse into a single population through hybridization. Recent research has documen...

www.biorxiv.org

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Jeff Groh @jeffgroh.bsky.social · Apr 24

Congrats to my wonderful PhD advisor @gcbias.bsky.social on being elected to American Academy of Arts & Sciences! www.amacad.org/new-members-...

New Academy Members

Elected in 2025

www.amacad.org

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Reposted by Jeff Groh

Science Homecoming @sciencehomecoming.bsky.social · Apr 10

Biologist Jeff Groh wrote home to Hummelstown PA 🚜 to lay out the many costs of cuts to American science infrastructure. “Let’s not ruin a good thing” 🧪🏠

Jeff Groh @jeffgroh.bsky.social · Apr 10

Inspired by others on here I wrote a short op-ed in support of federal research funding for a local newspaper in small town PA where I grew up

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Jeff Groh @jeffgroh.bsky.social · Apr 10

Inspired by others on here I wrote a short op-ed in support of federal research funding for a local newspaper in small town PA where I grew up

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Reposted by Jeff Groh

The Atlantic @theatlantic.com · Apr 6

More than 1,200 demonstrations were held across the country on Saturday against the policies and actions of President Donald Trump and Elon Musk. See images from some of the protests in California, Florida, Washington, D.C., and more.

Photos: Nationwide Protests Against Trump and Musk

Images from some of the hundreds of anti-Trump demonstrations across the country.

bit.ly

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Jeff Groh @jeffgroh.bsky.social · Mar 12

Thanks! It certainly seems that a common theme is structural DNA variation affecting allele-specific regulation of flowering genes to regulate timing. In this case, we don't find evidence that the mechanism directly involves the 3' UTR

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Reposted by Jeff Groh

micamer.bsky.social @micamer.bsky.social · Mar 11

We would love feedback on a new NCBI-BLAST service we are launching today: sky-blast.com

Under the hood it's the same BLAST executable and databases provided by NCBI, with a replica of the NIH's interface - providing an alternative to the US gov service that's less congested, faster & more reliable

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Jeff Groh @jeffgroh.bsky.social · Mar 12

updated link to their preprint www.biorxiv.org/content/10.1...

www.biorxiv.org

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