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Joel Sharbrough

@jsharbro.bsky.social
958 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
I'd be very excited to host someone working on polyploid evolutionary ecology (e.g., eco-physiological factors/constraints that might contribute to diploidization). Please reach out if this would be of interest!
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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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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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Reposted by Joel Sharbrough
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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Reposted by Joel Sharbrough
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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Reposted by Joel Sharbrough
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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Reposted by Joel Sharbrough
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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Joel Sharbrough @jsharbro.bsky.social · 08/06/2026
Love the last two!
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Joel Sharbrough @jsharbro.bsky.social · 04/06/2026
Jesus has good advice too!
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Joel Sharbrough @jsharbro.bsky.social · 28/05/2026
Yay! Congrats Shelly! FSU is very lucky to have you!
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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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Reposted by Joel Sharbrough
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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Reposted by Joel Sharbrough
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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Joel Sharbrough @jsharbro.bsky.social · 19/01/2026
Science – the incremental and constructive pursuit of truth – is fundamentally a rebellion against those who would use ignorance to enslave, dominate, and control. Though it may seem an ineffectual form of combat, pursuing truth is anathema to authoritarianism, and is thus virtuous and worthwhile.
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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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Joel Sharbrough @jsharbro.bsky.social · 19/01/2026
We must not give up in the face of this disgraceful waste. Thank you NSF program officers, for all you do!
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Joel Sharbrough @jsharbro.bsky.social · 14/01/2026
Well that sent me into a rabbit hole of misery
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Reposted by Joel Sharbrough
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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Joel Sharbrough @jsharbro.bsky.social · 16/12/2025
Very cool! Thank you and all the people involved for producing this!
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Reposted by Joel Sharbrough
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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Reposted by Joel Sharbrough
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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Joel Sharbrough @jsharbro.bsky.social · 09/12/2025
Congrats Raymond! No surprise, of course, but a great accomplishment nonetheless!
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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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Reposted by Joel Sharbrough
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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Joel Sharbrough @jsharbro.bsky.social · 23/09/2025
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.
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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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Joel Sharbrough @jsharbro.bsky.social · 04/09/2025
Oxidative phosphorylation! Photosynthesis! If you want nuclear-nuclear epistasis, centromeric proteins, the latter has insane rates of evolution, potentially underlying speciation
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Reposted by Joel Sharbrough
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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