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Joel Sharbrough

@jsharbro.bsky.social
954 followers 262 following 48 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
Dan Sloan @sloanevolab.bsky.social · 15/09/2026
Please share! Our lab at Colorado State University is recruiting a PhD student to join us starting fall 2027. We are broadly interested in plant molecular evolution and comparative genomics. More info about our lab and grad programs is available on our lab website. sites.google.com/site/danielb...
sites.google.com
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...
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Reposted by Joel Sharbrough
Rob Denton @rddenton.bsky.social · 14/09/2026
Boosting this back out there. Just a couple weeks to apply!
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Joel Sharbrough @jsharbro.bsky.social · 09/09/2026
Cool internal #postdoc funding opportunity here at UCSB – UCSB Schmidt Environmental Solutions Fellows Program. 2 years, $200k in funding (salary + benefits + discretionary funds) docs.google.com/document/d/1...
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Reposted by Joel Sharbrough
Maurine Neiman @maurineneiman.bsky.social · 03/09/2026
Terrific article in @quantamagazine.org about polyploidy and featuring our snails, along with some amazing other scientists! ❤️🐌🧬 www.quantamagazine.org/genome-dupli... @johnlogsdon.bsky.social @chelseahiggins.bsky.social @kylemcelroy.bsky.social @peterdfields.bsky.social @jsharbro.bsky.social
quantamagazine.org
Genome Duplication Is a Radical Evolutionary Gamble | Quanta Magazine
By doubling their entire genome, organisms can evolve extremely rapidly — or they can lose it all. New studies reveal how to survive the high-risk, high-reward evolutionary event.
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Dorota Paczesniak @dorotdesigns.bsky.social · 15/08/2026
These t-shirts with my design for @maurineneiman.bsky.social’s lab are about to drop 😁 I can’t wait to try mine on! #SciArt
A black t-shirt with white text “The science of Sex | Neiman Lab”. Around the text there are three snails with rainbow-coloured shells, with pink, blue and purple bodies.
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Reposted by Joel Sharbrough
Todd Oakley @ostratodd.bsky.social · 28/07/2026
Happy to share that this paper led by @caberger.bsky.social with @stoilovamarina.bsky.social @rebeccavarney.bsky.social @pcart.bsky.social Sam Abrams and Maria Pia is published -- Unexpectedly predictable molecular evolution with diverse ecologies 🧪 🧬 🌊 #Molevol #EvoBio www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Tree of Sex @treeofsex.bsky.social · 24/06/2026
Yes of course sorry! univie.questionpro.eu/a/TakeSurvey...
univie.questionpro.eu
ToS.DefinitionSurvey.QuestionPro
ToS.DefinitionSurvey.QuestionPro
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Briante Najev, PhD @briante-najev.bsky.social · 20/06/2026
I'm in Cleveland for the Evolution conference #Evol2026. My talk is about size trait scaling across biological levels between ploidy levels at Sun, June 21, 11:15 AM - 12:30 PM, Room 25C. Hopefully see you there or somewhere in Cleveland!
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Rob Denton @rddenton.bsky.social · 21/06/2026
Bummed to miss #Evol2026. For all those students looking for a position, we're recruiting MS students (polyploid genomics) and a PostDoc (conservation genomics) for next year. Shoot me an email!
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Reposted by Joel Sharbrough
Holly Moeller @mixotrophe.bsky.social · 29/04/2026
What a heartbreaking loss of a brilliant and generous member of the mycology and ecology community. I'm thinking of Adriana's family and extended scientific family at this time.
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Reposted by Joel Sharbrough
Joel Sachs @sachslab.bsky.social · 29/04/2026
Dear Colleagues, It is with immense sadness and shock that I share the passing of Dr. Adriana Romero Olivares, a brand-new Assistant Professor in the Department of Evolution, Ecology, and Organismal Biology at UC Riverside. www.mealtrain.com/trains/l3kg64
mealtrain.com
Meal Train for Jovani Catalan (Spouse of Adriana Romero Olivares)
Hi all, Please help out the family of Adriana Romero Olivares. Her husband, Jovani, and kids can be helped with meals over the next weeks as Adriana recovers.
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Reposted by Joel Sharbrough
Jae Young Choi @jychoi.bsky.social · 30/04/2026
I'm looking to hire a postdoc. Please share if you can!
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Reposted by Joel Sharbrough
Pam Herd @pamherd.bsky.social · 27/03/2026
While the situation is grim at NIH, it's closer to catastrophic at NSF. They're just not able to move any money out the door. It appears OMB has them on lockdown. www.science.org/content/arti....
Figure showing NSF funding curve in 2026 compared to prior years.  The line is nearly at zero as of mid February.  As Science and Nature have reported, NIH and NSF have made only a relative handful of new grants since their 2026 appropriations became law, partly because of the OMB delays. A new rumor among the U.S. academic community is that, even after OMB signs off, it will hold agencies to the levels Trump requested for them in May 2025 rather than the more generous amounts Congress approved. For NSF, which received an appropriation of $8.8 billion, a version of those rumors holds that OMB must approve any spending above the president’s request of $3.9 billion—and that any additional outlays must clearly align with the administration’s priorities.
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Will Booker @wbooker.bsky.social · 23/03/2026
It took forever but my last paper as an academic is finally out. ironically this paper probably has the smallest audience, but I believe is my most impactful work. I think it provides some nice support for theories on polyploid origins, and has practical implications in crops and conservation
academic.oup.com
Recombination and the role of pseudo-overdominance in polyploid evolution
Abstract. Natural selection is an imperfect force that can under some conditions fail to prevent the buildup of deleterious mutations. Small population siz
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Maurine Neiman @maurineneiman.bsky.social · 19/03/2026
I am so honored to partner with this amazing and impactful vaccine advocacy organization to share JJ’s story. 💉💜💉
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Reposted by Joel Sharbrough
Matt Hufford @mbhufford.bsky.social · 03/03/2026
Corrinne Grover and I are hiring a postdoc to work on population and comparative genomics in multiple crop species. Applications will be accepted through March 17th and details can be found here: isu.wd1.myworkdayjobs.com/IowaStateJob...
isu.wd1.myworkdayjobs.com
Postdoctoral Researcher - Evolutionary Genomics and Population Genetics
Position Title: Postdoctoral Researcher - Evolutionary Genomics and Population Genetics Appointment Type: Post Doc/Trainee Job Description: Summary of Duties and Responsibilities: We are seeking a Pos...
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Reposted by Joel Sharbrough
Wide Hybridization Group @widehybridization.bsky.social · 17/02/2026
Latest work from our group together with @jsharbro.bsky.social This review synthesizes insights into cytonuclear incompatibility in plant hybrids and allopolyploids, highlighting maternal bias, evolutionary consequences, and applications such as cytoplasmic male sterility in seed production.
academic.oup.com
Causes and Consequences of Cytonuclear Incompatibility in Hybrids of Flowering Plants
Abstract. Hybridization and polyploidization combine divergent nuclear genomes with maternally inherited organelles, often disrupting cytonuclear coadaptat
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Reposted by Joel Sharbrough
Leslie Rissler @ljrissler.bsky.social · 18/01/2026
The National Science Foundation sign on our Eisenhower Av building is now gone. The NSF mural in the foyer is removed and torn off in sheets. We were supposed to celebrate the 75th anniversary of the agency in May 2025. That never happened.
NSF building on Eisenhower Av. HUD now owns. Destroying the NSF mural in the foyer. Of the Eisenhower building.
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Josh Jahner @jpjahner.bsky.social · 22/12/2025
I am recruiting a MS student in Biology at New Mexico Tech with an anticipated start date of Fall 2026 to work on the applied evolutionary genetics of wild populations with conservation or management concerns (butterflies, bighorn sheep). Please see the attached advertisement for more info.
An image of a recruitment advertisement for a MS position at New Mexico Tech
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PlantEvolution 🌱🌾 @plantevolution.bsky.social · 24/11/2025
We (Nordborg & Weigel labs) need input on the next generation of genome browsers & data download modes for the #Arabidopsis #1001GenomesPlus project. We have now a curated collection of over 500 long read genomes. Please help us by filling out this questionnaire: docs.google.com/forms/d/e/1F...
docs.google.com
Next generation of 1001 Genomes Plus browser and data download
Please indicate all features you would like to see in a browser that displays features of completely sequenced Arabidopsis thaliana genomes
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Hypothesis Fund @hypothesisfund.bsky.social · 11/12/2025
3/ Awardee @mixotrophe.bsky.social aims to uncover how mixotrophs (marine microbes that harness energy from the 🌞 & organic matter) strategize their metabolisms. Her project may be key to understanding our changing ocean. 🎉 Congrats Dr. Moeller! @ucsantabarbara.bsky.social 🙏 #HFScout Ginger Armbrust
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Leslie Rissler @ljrissler.bsky.social · 11/12/2025
NSF - Forced reorg - POs down ~ 40% (DRP, most rotators not renewed, retirements) - Forced move (and we have to pack and clean) to a building with no furniture, little to no conference space for panels, inadequate 🛜, …) I personally love the boxes they gave us for packing. “Details matter” 🙃
Boxing up the NSF at Eisenhower Av for the forced relocation. Boxes have “Details Matter” signage.
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Reposted by Joel Sharbrough
Julian Catchen @jcatchen.bsky.social · 18/11/2025
I am recruiting graduate students to my genomics-focused lab in EEB at Illinois Urbana-Champaign. Please spread the word if you know any students with an interest in a computational focus to genomics research! evol.mcmaster.ca/brian/evoldi...
evol.mcmaster.ca
https://evol.mcmaster.ca/brian/evoldir/GradStudentPositions//UIllinois.EEB.Genomics
The Catchen Lab (https://catchenlab.life.illinois.edu/), in the Department of Evolution, Ecology, and Behavior at the University of Illinois at Urbana-Champaign is recruiting graduate students to join...
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Reposted by Joel Sharbrough
Genome Biology and Evolution @genomebiolevol.bsky.social · 06/11/2025
Jalinsky et al. present a high-quality genome assembly for the New Zealand snail Potamopyrgus antipodarum, revealing a whole-genome duplication and evidence for rediploidization. 🔗 doi.org/10.1093/gbe/evaf192 #genome #evolution #WGD
GBE | Whole-Genome Sequence of Potamopyrgus antipodarum—A Model System for the Maintenance of Sexual Reproduction—Reveals a Recent Whole-Genome Duplication
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Maurine Neiman @maurineneiman.bsky.social · 05/11/2025
I am so proud & happy to see our Potamo genome assembly finally out there in the world! The process ended up being way more challenging than expected, but for some really cool reasons. ❤️🐌🧬 TLDR: Surprise! A VERY recent WGD. academic.oup.com/gbe/article/... Photo: C. Böck, ILIM, Mondsee, Austria)
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Reposted by Joel Sharbrough
Rob Denton @rddenton.bsky.social · 04/11/2025
Now in Evolution: academic.oup.com/evolut/artic... This paper started when @3rdreviewer.bsky.social, Mike, and I had a lunch at which there was a lot of, "What do you mean when you say X?" Fun to spend time thinking about when terms get too muddy, and great work by Drew to pull it all together!
academic.oup.com
Reconsidering cytonuclear discordance in the genomic age
Abstract. Historically, phylogenetic datasets had relatively few loci but were overrepresented for cytoplasmic sequences (mitochondria and chloroplast) bec
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Joel Sharbrough @jsharbro.bsky.social · 03/11/2025
I am looking for a PhD student to start in my lab at UCSB in Fall 2026, studying evolutionary biology. See attached flyer for more information. Please also share with potentially interested students. Thanks!
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Reposted by Joel Sharbrough
Mike Barker @barkerms.bsky.social · 24/10/2025
The CAMBIUM NSF NRT is recruiting PhD students @uarizona.bsky.social! Fellowships for interdisciplinary training in biodiversity big data to adapt to & mitigate climate change impacts. Great fit for evolutionary genomics, bioinformatics, plant adaptation, ecology & more. cambium.arizona.edu 🧬🌐🌎
A logo for the CAMBIUM NRT featuring stylized rings.An organ pipe cactus in the moonlight with a starry sky above.
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Emily Josephs @emjo.bsky.social · 24/10/2025
Hey Yaniv Brandvain is not on Bluesky but his most recent biostats ebook is live ybrandvain.github.io/biostats/. His stats resources have been so helpful to me as I develop my own stats course, so check it out. Github repo here: github.com/ybrandvain/b...
ybrandvain.github.io
Applied Biostatistics
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Martin Turcotte @exp-evoeco.bsky.social · 20/10/2025
#PhD Position: Interested in the evolutionary and ecological impacts of whole genome duplication? Join Dr. Tia-Lynn Ashman @drtialynn.bsky.social and I at the U. of Pittsburgh, to test what drives the competitive outcomes between diploids and #polyploids Details: shorturl.at/nQ8UW
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Mike Grillo @mikegrillo.bsky.social · 10/10/2025
I am hiring a postdoc to examine the genomic and evolutionary basis of plant microbiome variation in legumes. There are opportunities to gain teaching experience. Chicago is a great city to live in! Please help spread the word. share.google/gukbzS1zdIx6...
share.google
Postdoctoral Researcher in Plant Evolutionary Genomics
The postdoctoral researcher will work in Dr. Michael Grillo’s plant evolutionary genetics lab. The goal of this research project is to understand the genomic basis of plant-microbiome variation in leg...
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 09/10/2025
PEQG website live! genetics-gsa.org/peqg-2026/
genetics-gsa.org
Homepage - 2026 Population, Evolutionary, and Quantitative Genetics Conference
Visit our website to learn more.
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Holly Moeller @mixotrophe.bsky.social · 03/10/2025
🚨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.gov
NSF Graduate Research Fellowship Program (GRFP)
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Holly Moeller @mixotrophe.bsky.social · 01/10/2025
📣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...
careerspub.universityofcalifornia.edu
An error has occurred.
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Dan Sloan @sloanevolab.bsky.social · 08/09/2025
The Department of Biology at Colorado State University is hiring an Assistant Professor in the area of plant-microbe interactions! Please spread the word! jobs.colostate.edu/postings/165...
jobs.colostate.edu
Assistant Professor Plant-Microbe Interactions
We seek a creative, collaborative, and visionary plant biologist to establish an internationally recognized research program at the forefront of plant-microbe interactions aimed at understanding how t...
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Wide Hybridization Group @widehybridization.bsky.social · 02/09/2025
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....
doi.org
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...
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Justin Conover @conjustover.bsky.social · 02/09/2025
New Preprint! This one led by Sam Gibbon, an outstanding undergrad I've worked with for the past year. We take a look at whether segregation patterns in tetraploids (disomic v polysomic) affects mut-sel dynamics. We found some surprising results, and some subtleties: www.biorxiv.org/content/10.1...
biorxiv.org
Bistable Mutation-Selection Equilibria and Violations of Fisher's Theorem in Tetraploids: Insights from Nonlinear Dynamics
Polyploidy and whole genome duplication (WGD) are widespread biological phenomena with substantial cellular, meiotic, and genetic effects. Despite their prevalence and significance across the tree of ...
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Stephen I Wright @stepheniwright.bsky.social · 27/08/2025
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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Maddy Seale @maddyseale.bsky.social · 22/08/2025
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
science.org
In Other Journals
Editors’ selections from the current scientific literature
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Emily Josephs @emjo.bsky.social · 21/08/2025
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
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Jesús Martínez-Gómez @jesusgm.bsky.social · 25/07/2025
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
martinezgomezlab.com
Martinez-Gomez Lab
Plant Evo-Devo
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Shelly Gaynor @shellygaynor.bsky.social · 23/07/2025
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.
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Dan Garisto @dangaristo.bsky.social · 22/07/2025
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.
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Emily Josephs @emjo.bsky.social · 22/07/2025
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!!
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Jonathan Wendel @jonathanfwendel.bsky.social · 16/07/2025
youtu.be/Vkv0vI6jCnM?...
youtu.be
Letter from NAS Members to the Honorable Senators and Representatives of the United States
YouTube video by Biochemistry Channel
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Laurie Belcher @lauriebelch.bsky.social · 16/07/2025
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...
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Dan Sloan @sloanevolab.bsky.social · 14/07/2025
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...
sites.google.com
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...
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Shelly Gaynor @shellygaynor.bsky.social · 14/07/2025
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!
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Dan Sloan @sloanevolab.bsky.social · 11/07/2025
Keep contacting your congressional representatives and senators! Let them know this is the right decision. nature.com/articles/d41...
nature.com
US senators poised to reject Trump’s proposed massive science cuts
Committee gives first hint that policymakers might preserve, rather than slash, funding for US National Science Foundation and other agencies.
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Joel Sharbrough @jsharbro.bsky.social · 08/07/2025
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
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