Joel Sharbrough
@jsharbro.bsky.social
910 followers 250 following 37 posts
Assistant Professor of evolutionary biology in the Ecology, Evolution, and Marine Biology Department @ucsantabarbara.bsky.social, interested in mito-nuclear and plastid-nuclear interactions. (he/his)
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Reposted by Joel Sharbrough
mixotrophe.bsky.social
🚨GRFP DEADLINE ALERT!🚨 I missed this in my original solicitation read-through, so FYI 📣LETTERS ARE DUE BEFORE PROPOSALS📣 this year!

"Reference letters are due Friday, November 7 at 5:00 p.m. Eastern Time (ET)."

www.nsf.gov/funding/oppo...
NSF Graduate Research Fellowship Program (GRFP)
www.nsf.gov
Reposted by Joel Sharbrough
mixotrophe.bsky.social
📣We're Hiring!📣 Come join us as a marine micro lab tech in sunny Santa Barbara! A great position for a 2-year post-bacc or starting point for a long-term technician position. Apply by 9 October for full consideration, and please share widely! careerspub.universityofcalifornia.edu/psp/ucsb/EMP...
An error has occurred.
careerspub.universityofcalifornia.edu
jsharbro.bsky.social
We do this as well, I co-teach the evolution section. Note that it's quarters, not semesters, so a bit shorter of a syllabus.
jsharbro.bsky.social
Oxidative phosphorylation! Photosynthesis! If you want nuclear-nuclear epistasis, centromeric proteins, the latter has insane rates of evolution, potentially underlying speciation
Reposted by Joel Sharbrough
widehybridization.bsky.social
We’re excited to share our new work on how plants restore cytonuclear balance after whole-genome duplication. Using Arabidopsis auto- and allopolyploids, we uncover distinct, organelle-specific strategies in chloroplasts and mitochondria across generations.
doi.org/10.1111/tpj....
Restoring cytonuclear harmony: Distinct strategies in Arabidopsis auto‐ and allopolyploids
Whole-genome duplication (WGD) disrupts cytonuclear balance by doubling nuclear content, requiring compensatory responses from organelles. In Arabidopsis auto- and allopolyploids, we found dynamic, o...
doi.org
Reposted by Joel Sharbrough
Reposted by Joel Sharbrough
stepheniwright.bsky.social
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
Reposted by Joel Sharbrough
maddyseale.bsky.social
My pick for In Other Journals this week:
MSH1 suppresses organelle mutation - an investigation of how many plants maintain very low mitochondrial mutation rates

My summary here:
www.science.org/doi/10.1126/...

Paper here: doi.org/10.1371/jour...
@sloanevolab.bsky.social
#PlantScience
In Other Journals
Editors’ selections from the current scientific literature
www.science.org
Reposted by Joel Sharbrough
emjo.bsky.social
MSU Plant Bio is hiring a new herbarium director! Our herbarium is a wonderful resource on campus and I'm excited to have the opportunity to make it even better by bringing in a new director. Details here: plantbiology.natsci.msu.edu/job-postings...
plantbiology.natsci.msu.edu
Reposted by Joel Sharbrough
jesusgm.bsky.social
A little belated but I've started a faculty position at Ecology, Evolution and Marine Biology department at @ucsantabarbara.bsky.social. I'm absolutely stoked! I'll be recruiting at all levels and will be at #Botany2025

Reach out!

www.martinezgomezlab.com
Martinez-Gomez Lab
Plant Evo-Devo
www.martinezgomezlab.com
Reposted by Joel Sharbrough
shellygaynor.bsky.social
Almost ready for #Botany2025 - come see the first project of my postdoc with @blackrim.bsky.social on Tuesday at 1:45pm in Mesquite B.
Title slide for Detecting whole genome duplication in the present and the past with Michelle Gaynor, Keyi Feng, Doug Soltis, Pam Soltis, and Stephen Smith.
Reposted by Joel Sharbrough
dangaristo.bsky.social
NSF staff release their appeal—slightly different format than the declarations of dissent from EPA/NIH/NASA; a more formal petition to Congress to redress attacks on the agency and its employees. 149 signatories (48 named)
democrats-science.house.gov/imo/media/do...
Petition for Action
As provided under the Lloyd-La Follette Act (5 U.S.C. 7211), the signatories respectfully petition the
Committee to:
1. Ensure that NSF employees are shielded from politically motivated firings and protected
under merit-based personnel systems.
2. End illegal impoundments of monies appropriated to NSF.
3. Defend the agency from further interference in its peer review process.
4. Demand transparency from OMB, DOGE, and NSF leadership regarding internal employment
policies and future agency relocations.
5. Reaffirm NSF’s scientific independence and support for world-class research that advances
national prosperity and security.
NSF employees are committed to serving the American people through research, education, and
innovation. But they cannot do so under fear, censorship, and institutional sabotage. Without immediate
oversight and corrective action from Congress, one of our nation’s greatest engines for scientific and
technological advancement faces irreversible long-term damage. Put simply, America will forfeit its
scientific leadership position to China and other rival nations.
Reposted by Joel Sharbrough
emjo.bsky.social
Hey #Botany2025 folks -- Asia Hightower @puffballove.bsky.social will be talking about leaf shape G x E x Development in Capsella bursa-pastoris. Tuesday Jul 29 at 9:15 in Mesquite B!!
Reposted by Joel Sharbrough
lauriebelch.bsky.social
OrthoFinder just dropped a major update

It’s faster, more accurate, and ready for thousands of genomes

Let’s break it down (1/10)

github.com/OrthoFinder/...
www.biorxiv.org/content/10.1...
jsharbro.bsky.social
Even just a little bit of outcrossing is capable of resetting the ratchet. Hill-Robertson Effect on the other hand...
Reposted by Joel Sharbrough
sloanevolab.bsky.social
Please share! Our lab is recruiting a PhD student to join us starting fall 2026. Our group is broadly interested in plant molecular evolution and comparative genomics. More info about our lab and grad programs at Colorado St. is available on our lab website.

sites.google.com/site/danielb...
Sloan Lab
Welcome! Our research focuses on the evolutionary process at the molecular level. In particular, we investigate how a mixture of natural selection and non-adaptive forces create and maintain the amazi...
sites.google.com
Reposted by Joel Sharbrough
shellygaynor.bsky.social
Anyone planning to recruit future postdocs at #Botany2025?

I'm on the market for a faculty position, but I know a great future-postdoc who wants to network!
jsharbro.bsky.social
Please RT!

I'm hiring a postdoc to work in my new lab at UCSB (!) on an NSF-funded project investigating the phenotypic consequences of WGD for photosynthesis and respiration.

Check out the full posting here:
recruit.ap.ucsb.edu/JPF02986

And more info about the lab here:
sharbroughlab.com
Reposted by Joel Sharbrough
sauerscientist.bsky.social
I'm recruiting a 2-yr postdoc to start in October or November of 2025! I'm looking for applicants interested in exploring amphibian disease ecology as it relates to climate change. Strong quantitative skills preferred, interviews start late July. More info: erinsauer.com
Reposted by Joel Sharbrough
dorotdesigns.bsky.social
#SciArt #Artshare I’m a scientific illustrator with genetics and evolution background open to commissions of infographics, illustrations, scientific figures, …
A fragment of an infographic about genetic markers, showing a close-up of a plant cell with nucleus, mitochondria and chloroplasts. A DNA strand is unraveling from a chromosome A vector drawing of Siberian larch (Larix archangelica, syn. Larix sibirica) tree silhouette and branch fragment with seed cones A large infographic entitled „Genetic variation in improved forests” with sections about tree breeding in Finland, propagation (seed orchards and vegetative propagation) and forest regeneration. Made in collaboration with the Natural Resources Institute Finland (Luke) and the University of Helsinki
jsharbro.bsky.social
Anyone have the full list of Universities/Colleges?
Reposted by Joel Sharbrough
fcamus.bsky.social
Thrilled to share our latest preprint! 🎉🔥

We analysed >23k mtDNA genomes & found 18 variants shaped by climate—linked to thermogenesis, metabolism & disease.

Led by PhD student Finley Grover-Thomas, and in collab with: @aidaandres.bsky.social @lucyvandorp.bsky.social @proffballoux.bsky.social
biorxiv-evobio.bsky.social
Climate associated natural selection in the human mitochondrial genome https://www.biorxiv.org/content/10.1101/2025.05.23.655374v1