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Jim Leebens-Mack

@jleebensmack.bsky.social
597 followers 632 following 29 posts

Botanist. University of Georgia. Plant evolutionary biology, phylogenomics, comparative genomics.

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Reposted by Jim Leebens-Mack
Casey Dunn @caseywdunn.bsky.social · 25/08/2026
My new book, Phylogenetic Biology, is now published. Available online for free at dunnlab.org/phylogenetic... . Physical copies can be purchased at shop.lightningsource.com/b/085?params... or your favorite bookstore.
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Neil Tsutsui @neiltsutsui.bsky.social · 25/08/2026
We're hiring! Our search for an Assistant Professor in Arthropod Biodiversity just opened. Come join us at UC Berkeley in the amazing Department of Environmental Science, Policy, & Management! Feel free to contact me if you have questions. aprecruit.berkeley.edu/JPF05523
aprecruit.berkeley.edu
Assistant Professor - Arthropod Biodiversity - Department of Environmental Science, Policy, and Management
University of California, Berkeley is hiring. Apply now!
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Jim Leebens-Mack @jleebensmack.bsky.social · 26/08/2026
www.nsf.gov/funding/oppo...
nsf.gov
NSF Graduate Research Fellowship Program (GRFP)
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Andy Murdock @andymurdock.bsky.social · 09/07/2026
Botany friends: cool job alert. We're searching for a new Director for the UC & Jepson Herbaria here at UC Berkeley. Share with nice people. aprecruit.berkeley.edu/JPF05405 🌿🌺🌵
aprecruit.berkeley.edu
Associate/Full Professor- Plant Ecology, Evolution and Systematics- Integrative Biology, and Director- University of California Berkeley Herbaria
University of California, Berkeley is hiring. Apply now!
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Gina Baucom @gbaucom.bsky.social · 15/05/2026
Head's up SSE members: Virtual Evolution is next week! Join us for the SSE Presidential Symposium on May 21 for talks from SSE leaders and past presidents on sustaining research, supporting trainees, navigating funding uncertainty, and strengthening evolutionary biology. Pls RT!
SSE Presidential Symposium –  Navigating Uncertainty: Individual Resilience and Collective Action in Evolutionary Biology
May 21, 9:15 AM - 12:30 PM
This year’s SSE Presidential Symposium will consist of two linked sessions designed to address the current climate of uncertainty surrounding federal funding and its implications for evolutionary biology. Together, these sessions are designed to move from personal grounding to community-level strategy, offering both immediate support and longer-term vision.

Part 1: Recommendations for the Community
Lightning Talks from Past SSE Presidents and Leaders in the Field
May 21, 9:15 AM - 10:30 AM EDT

This session will feature past SSE Presidents and leaders in the field, each giving a 5-minute lightning talk offering concrete, actionable ideas for maintaining research programs, supporting trainees, and strengthening the field during periods of funding constraint. The emphasis will be on practical recommendations at multiple scales—individual researchers, departments, universities, the society, and the field as a whole. There will be a 30-minute Q&A following the talks.

Prothama Manna
Postdoctoral Fellow at Clemson University, SSE GSAC Chair
“What Trainees Need in Uncertain Times: Paths to Resilient Science”

Mohamed Noor
Executive Vice Provost and Professor of Biology at Duke University, 2014 SSE President and former Evolution Editor-in-Chief
“How to ask for help in uncertain times”

Ruth Shaw
Professor of Ecology, Evolution, and Behavior at the University of Minnesota, 2020 SSE President and former Evolution Editor-in-Chief
“Realigning scholarly evaluation to support scientists' agency”

Joseph Graves
MacKenzie Scott Endowed Professor of Biology at NC Agricultural and Technical State University
“What Departments Can/Must Do to Support Junior Faculty in an Anti-Science Climate”

Scott Edwards
Professor of Organismic and Evolutionary Biology and Curator of Ornithology in the Museum of Comparative Zoology at Harvard Universit…
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Andrew Hipp @andrewlhipp.bsky.social · 05/05/2026
Join @amsocplanttaxon.bsky.social for Dr. Lauren Eserman-Campbell (Atlanta Botanical Garden)'s webinar, “How Taxonomists Can Shape Conservation Outcomes” on Friday, June 5 at 12pm ET. Register today, and please share! us06web.zoom.us/webinar/regi...
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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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Jim Leebens-Mack @jleebensmack.bsky.social · 29/04/2026
Thank you, Vanessa, Mike and all involved! So many cool findings described in this work, including parallel evolution of leaf shape and the rapid radiation of Scalesia after genome doubling and Galápagos arrival.
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Anurag Agrawal @anurag-asclepias.bsky.social · 26/03/2026
Open postdoc position in my lab at Cornell, conducting comparative and experimental studies on transcriptomic responses to diet and toxins, utilizing the milkweed-insect community. Background in molecular bio & herbivory desired. academicjobsonline.org/ajo/jobs/31867
academicjobsonline.org
Cornell University, CALS Ecology and Evolutionary Biology
Job #AJO31867, WDR-00057721 Postdoctoral Associate, CALS Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, US
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Jim Leebens-Mack @jleebensmack.bsky.social · 24/03/2026
California poppy genome and gene expression analysis just published in time for the booming season - doi.org/10.1093/plce...! Wonderful collaboration with Annette Becker's lab at Justus Liebig University Giessen (JLU), @jgi.doe.gov and others.
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New Phytologist @newphyt.bsky.social · 16/02/2026
We're pleased to welcome @camilledelavaux.bsky.social to the New Phytologist Board of Advisors! Camille is the winner of the 2025 New Phytologist Tansley Medal for excellence in plant science. www.newphytologist.org/news/new-phy...
newphytologist.org
New Phytologist Tansley Medal 2025 winner: Camille S. Delavaux
We are delighted to announce that the 2025 New Phytologist Tansley Medal for excellence in plant science has been awarded to Camille S. Delavaux.
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Jim Leebens-Mack @jleebensmack.bsky.social · 16/02/2026
Work led by @pbentz.bsky.social shows that two of eight dispersals of Asparagus out of Southern Africa were associated with shifts to dioecy and independently evolved XY sex determination systems.
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Seth Bordenstein @symbionticism.bsky.social · 17/01/2026
📢 JOB OPPORTUNITY We are hiring a Research Technologist (Advanced Professional) to design, implement, support, analyze, and report on rigorous research in genetics, entomology, and host-microbe interactions. Please consider and share with others in need. psu.wd1.myworkdayjobs.com/PSU_Staff/jo...
psu.wd1.myworkdayjobs.com
Research Technologist - Life Sciences Advance Professional - Bordenstein Lab
APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, a...
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John Lovell @jotlovell.bsky.social · 20/12/2025
The January issue of New Phytologist is online now, featuring on the cover @roseamarks.bsky.social’s article on the physiology and genomics of the resurrection plant, Myrothanus flabellifolia. doi.org/10.1111/nph.... (I’m posting here for Dr. Marks, who is currently doing field work off the grid)
doi.org
The architecture of resilience: a genome assembly of Myrothamnus flabellifolia sheds light on desiccation tolerance and sex determination
Myrothamnus flabellifolia is a dioecious resurrection plant endemic to southern Africa that has become an important model for understanding desiccation tolerance. Despite its ecological and medicina...
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Jeremy Yoder says no war @jbyoder.org · 04/12/2025
My department at California State University Northridge is hiring! We're looking for a new colleague studying microbiology or molecular/cellular biology. I'm not on the search committee, but happy to answer questions about the department and campus, and life in LA buff.ly/Pc1KOaC
careers.pageuppeople.com
Career Opportunities
Applicant Log-In
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🧬Jacob L Steenwyk @jlsteenwyk.bsky.social · 15/11/2025
Today is the last day to register! Please consider doing so - it is going to be a fun one! Register here: evomics.org/apply-worksh... bsky.app/profile/jlst...
evomics.org
Apply: Workshop on Phylogenomics and Genome Evolution 2026 - Evolution and Genomics
Application for the 2026 Workshop on Phylogenomics and Genome Evolution Use this form to apply for the 2026 Workshop on Phylogenomics being held in Cesky Krumlov, Czechia from 25th January ...
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Mariana Silva Artur @marianasartur.bsky.social · 15/11/2025
Absolutely happy to share our latest publication!🥳🎉 The first manuscript of the first PhD candidate of my team! 🥹🤩 Huge congratulations to our brilliant Asif Ahmed Sami for his excellent work! ✨️ academic.oup.com/plcell/artic...
academic.oup.com
The phylotranscriptomic profile of angiosperm seed development follows a reverse hourglass pattern
Angiosperm seed development exhibits a reverse phylotranscriptomic pattern, with early and late stages showing greater conservation and mid-phase showing h
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Jim Leebens-Mack @jleebensmack.bsky.social · 11/09/2025
Chazz Jordan's phylogenomic analysis of cone flowers (Echinacea) just published! - doi.org/10.3389/fpls.... Chazz's findings suggests rapid diversification in the genus as ancestral populations dispersed from southeastern North America into the midwest.
doi.org
Frontiers | Utilizing target capture sequencing to resolve the speciation history of Echinacea (Asteraceae)
It has been difficult to resolve relationships among many important lineages within the Asteraceae family due to interspecific hybridization and rapid specie...
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Jim Leebens-Mack @jleebensmack.bsky.social · 11/09/2025
Analyses of a new genomes for garden asparagus and a Mediterranean basin congener reveal independent origins of dioecy and XY sex chromosomes. The work led by Phil Bentz @pbentz.bsky.social finds no overlap in the two Y-linked sex-determination genes - www.biorxiv.org/content/10.1... .
biorxiv.org
Two independent origins of XY sex chromosomes in Asparagus
The relatively young and repeated evolutionary origins of dioecy (separate sexes) in flowering plants enable investigation of molecular dynamics occurring at the earliest stages of sex chromosome evol...
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Julian Catchen @jcatchen.bsky.social · 26/08/2025
Our EEB department at the University of Illinois at Urbana-Champaign is hiring an assistant professor in evo-devo. See go.illinois.edu/EEBAsstProf for details. Please share!
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Journal of Ecology @journalofecology.bsky.social · 21/08/2025
🌾The Functional traits in primary producers: recent advances and future directions special feature is open for proposals!🍄 🌲Proposal submissions close 15 September, more details here: buff.ly/e8PTkMM
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Chris Martine | Plant People FTW @martinebotany.bsky.social · 20/08/2025
#iamabotanist #herbarium #botany2025
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Chris Martine | Plant People FTW @martinebotany.bsky.social · 20/08/2025
#iamabotanist #herbarium #botany2025
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Axel Visel @axelvisel.bsky.social · 20/08/2025
On the cover of @natplants.nature.com this month: @leobaumgart.bsky.social @greensi.bsky.social @abmora.bsky.social @omalley-regulome.bsky.social et al. map binding sites for 360 TFs across 10 🌿plant🌿 species using a new multiDAP approach Here is Sharon's explainer 🧵: bsky.app/profile/gree...
Nature Plants August 2025 cover. Abstract artwork of overlapping colorful waveforms in red, orange, yellow, and purple on a black background, resembling mountain ridges or transcription factor binding profiles. The caption reads “Cistromes uncovered.”
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Jim Leebens-Mack @jleebensmack.bsky.social · 19/08/2025
Awesome research with implications for understanding of transitions between CAM and C3 modes of photosynthesis in yaccas agaves and their relatives!
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Lauren Frankel @laufran.bsky.social · 18/08/2025
hi friends, let me know if you'd like a zoom link for my defense next week!
Lauren's defense poster with an ABBA-BABA site pattern diagram in the background, and photos of Neotropical bellflowers in the foreground. There's a picture of her to the left along with text: "Inferring hybridization at shallow and deep timescales. Lauren Frankel PhD dissertation defense. Monday, August 25 10:00am CDT"
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Brittany Sutherland @sutherlandbl.bsky.social · 13/08/2025
I love this trend in polyploid research: “With new data and techniques, we can finally tackle this horribly complicated group!” “And guess what? It’s even worse than we imagined!” But seriously, excellent work!
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 10/08/2025
Day 3 of popgen we talked about effective population size. No, I don't really understand it. You probably don't either. But I highly recommend this fantastic guide about how to think about Ne onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Idiot's Guide to Effective Population Size
This is a reference manual for the elegant, yet hideously complex concept of effective population size (Ne), inspired by a classic, self-published manual of automotive repair ‘for the compleat idiot’...
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Oregon State University Botany and Plant Pathology @osubpp.bsky.social · 06/08/2025
The Department of Botany and Plant Pathology at Oregon State University is Hiring! We are searching for a Director of the Oregon State University Herbarium and applications are welcomed at the ranks of assistant, associate, or full professor.
Department of Botany and Plant Pathology at Oregon State University is hiring a Directory of the Herbarium
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Jacquelyn Gill @jacquelyngill.bsky.social · 30/07/2025
Are you an early-career biologist or ecologist who would benefit from an invited seminar? Would you like to come to UMaine next fall or spring to give a talk? Leave a brief comment with some info about what you do. I'm co-hosting our seminar series again, and am filling out our rosters.
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Christopher Dick @chrisdick.bsky.social · 09/07/2025
Herbarium director position opening at Oregon State University ‪@osu-herbarium.bsky.social‬ Great opportunity for herbarium- and field-trained botanists at any rank. bpp.oregonstate.edu/bpp/about/op...
bpp.oregonstate.edu
Open Positions
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Karen James @kejames.bsky.social · 08/07/2025
Come be my colleague (& @jacquelyngill.bsky.social's and other great folks)! UMaine is hiring a Genetics Facilities Manager to lead the CORE eDNA and DNA Sequencing Labs. Hiring range is $75-85k (up $20k from previous round) fa-ewca-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
fa-ewca-saasfaprod1.fa.ocs.oraclecloud.com
Genetics Facilities Manager
The University of Maine is a community of more than 11,900 undergraduate and graduate students, and 2,500 employees located on the Orono campus, the regional campus in Machias, and throughout the stat...
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Dario Cantù @cantulab.bsky.social · 05/07/2025
Some months later, work is now published @natcomms.nature.com www.nature.com/articles/s41...
nature.com
Evolutionary conservation of the grape sex-determining region in angiosperms and emergence of dioecy in Vitaceae - Nature Communications
Domesticated grapevine produces hermaphroditic flowers, while other Vitis species are dioecious. The authors report that the Vitis sex-determining region contains flowering-related genes conserved acr...
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Barbara Thiers @barbarathiers.bsky.social · 01/07/2025
The Biodiversity Collections Task Force is a nascent effort to help collections through anticipated difficult times in the near future. We are planning a webinar series, beginning in September 2025. Let us know which topics would be most useful to you: lnkd.in/gQmyMKmN
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Jim Leebens-Mack @jleebensmack.bsky.social · 30/06/2025
Let congress know that pro-growth = pro-science!
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Leslie Rissler @ljrissler.bsky.social · 26/06/2025
Another day testing the limits of resilience. The Alexandria NSF building was designed for the NSF merit review process (gold standard), complete with a floor devoted to panels. Now we aren’t allowed to have in person panels. The loss of US science leadership will haunt this country for decades.
nbcwashington.com
‘This is bull——”: National Science Foundation employees protest HUD's takeover
Dozens of National Science Foundation employees crowded the agency’s headquarters in Alexandria, Virginia, Wednesday to protest the news that the Department of Housing and Urban Development, or HUD, w...
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Botanical Society of America @botsocamerica.bsky.social · 20/06/2025
Check out this interview with BSA member and BSA Director at Large for Diversity, Equity, and Inclusion, Karolina Heyduk! botany.one/2025/06/karo...
botany.one
Karolina Heyduk: A Career Shaped by Desert Plants and Midnight Photosynthesis
Botany One interviews Dr Karolina Heyduk, a plant evolutionary biologist interested in the origins a unique type of photosynthesis.
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Joint Genome Institute @jgi.doe.gov · 09/06/2025
The #OpenGreenGenomes Project, supported through our #CommunityScience Program, represents 35 major evolutionary plant lineages — including M. polymorpha, or liverwort. For decades it has been used as a model for evolutionary studies. 🖥️🧬🌱 @jleebensmack.bsky.social @maximebonhomme.bsky.social
jgi.doe.gov
Marchantia Pangenome Highlights Adaptive Nature of Plant Lineages | Joint Genome Institute
Understanding the shared genetic toolkit of ancestral and present-day plants
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Charlotte Gommers @charlottegommers.bsky.social · 08/06/2025
Very happy to see this review by @elizavveen.bsky.social, Jesse Küpers and myself now out in Plant Cell & Environment! About how stresses impact chloroplasts, and how this can steer plant development via retrograde signaling 🌱 @pph-wur.bsky.social onlinelibrary.wiley.com/doi/10.1111/pce.15664
onlinelibrary.wiley.com
Plastids in a Pinch: Coordinating Stress and Developmental Responses Through Retrograde Signalling
Plastids can sense environmental stress and improve whole plant adaptation through retrograde communication to the nucleus. Recent studies have advanced our understanding of integrated canonical and ...
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Jim Leebens-Mack @jleebensmack.bsky.social · 31/05/2025
Call your congressional representatives and Senators!
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Joshua Weitz @joshuasweitz.bsky.social · 31/05/2025
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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Dr. David Miller 🏳️‍🌈 @davidimiller.bsky.social · 31/05/2025
9/ 🚨🚨🚨 CALL TO ACTION Call your elective representatives to tell them how these draconian cuts will directly harm (as applicable): your state your local communities your trainees yourself See the #SaveNSF website for some inspiration: www.savensf.com/take-action
Tools to Take Action
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Dr. David Miller 🏳️‍🌈 @davidimiller.bsky.social · 31/05/2025
🚨🚨 Friday night news drop from National Science Foundation!! 🧪 NSF just released its detailed budget request for next year: nsf-gov-resources.nsf.gov/files/00-NSF... We knew it was going to be bad...and it lives up. Guts direct NSF support for a **quarter million people** 🧵 on some highlights...
Senior Researchers 60,400 --> 16,900
Other Professionals 14,400  --> 4,100
Postdoctoral Associates 5,500  --> 1,000
Graduate Students 41,500  --> 12,400
Undergraduate Students 37,300  --> 8,000
PreK-12 Teachers 42,900  --> 8,200
PreK-12 Students 128,100  --> 39,400
Total Number of People 330,100  --> 90,000
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Prosanta Chakrabarty @prosanta.bsky.social · 24/05/2025
More details coming soon, but mark your calendars ... Breakout meeting for @systbiol.bsky.social‬ The Society of Systematic Biologists - will be Jan 9-11 in Baton Rouge! Topic is 'The Importance of Natural History Collections' @jembrown.bsky.social is primary host/organizer ssb2026.github.io
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American Society of Plant Biologists @aspbofficial.bsky.social · 23/05/2025
⏰ASPB Member Opportunity: Early Career Representative Application closing soon!🌱 Learn more and apply by June 1!👉https://ecr.secure-platform.com/a #PlantScience
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jessamine finch @seedystudies.bsky.social · 22/05/2025
🚨 Lady Bird Johnson Wildflower Center (Austin, TX) is looking for a Director of Gardens and Collections 🏵️ 👩‍🌾 Required 5+ years of garden leadership & team mgmt, 👩‍🎓 Bachelor’s in horticulture, ecology, landscape architecture or related 💸 $85k+ #horticulturejobs #publicgardenjobs #nativeplantjobs
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Jim Leebens-Mack @jleebensmack.bsky.social · 23/05/2025
Summer fun!
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Jim Leebens-Mack @jleebensmack.bsky.social · 21/05/2025
Come join the vibrant plant biology research community at @universityofga.bsky.social #UGAPlantCenter - plantcenter.uga.edu
plantcenter.uga.edu
Home - Plant Center
Welcome to The Plant Center at The University of Georgia
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