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Charlie Hale

@charleshale.bsky.social
260 followers 803 following 22 posts

PhD student in the Buckler Lab at Cornell. Genomics, evolution, agriculture.

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Charlie Hale @charleshale.bsky.social · 18/07/2026
Anyone at #PlantBio2026 want to get out for a run during the conference?
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Charlie Hale @charleshale.bsky.social · 16/06/2026
We used genomic LLMs to find 330 genes with repeated functional shifts as grasses adapted and diversified. Great work by Sheng-Kai Hsu to make cross-species trait mapping tractable across 700+ complex genomes. www.biorxiv.org/content/10.6...
biorxiv.org
Convergent genome- and gene-level constraints shape repeated environmental adaptation in grasses
Grasses (Poaceae) dominate terrestrial ecosystems and sustain global food security, yet the genomic principles enabling their repeated adaptation to extreme environments remain unresolved. Combining d...
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Reposted by Charlie Hale
Jacquelyn Gill @jacquelyngill.bsky.social · 12/05/2026
I'm hiring a postdoc to lead sedimentary aDNA reconstructions of alpine plant biodiversity as part of a broader project exploring the mechanisms of alpine plant resilience. Come join a collaborative team working in beautiful places! Bonus: postdocs at UMaine are unionized!
fa-ewca-saasfaprod1.fa.ocs.oraclecloud.com
Postdoctoral Research Associate
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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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 03/03/2026
Postdoc in evolutionary genetics with @mbhufford.bsky.social 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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Charlie Hale @charleshale.bsky.social · 16/02/2026
www.biorxiv.org/content/10.6... "TSS-proximal TFBSs are implicated in rapid, tissue-wide transcriptional stress responses....distal upstream regions contain conserved TF clusters that overlap rare cell type-specific accessible chromatin"
biorxiv.org
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Project Drawdown @projectdrawdown.bsky.social · 12/02/2026
American climate science is losing federal support right when we need it most. Project Drawdown is stepping up: launching the Climate Science Serving America Fellowship for early/mid-career PhD scientists to do good science that does good. 🗓️ Apply by April 17 👉 bit.ly/4kx2J1Q
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Molecular Biology and Evolution @molbioevol.bsky.social · 23/01/2026
Hale et al. analysed >500 grass genomes to support a “stable motifs, variable binding sites” model of cis-regulatory evolution that involves turnover of thousands of individual binding sites while preserving TF binding preferences. 🔗 doi.org/10.1093/molbev/msaf324 #evobio #molbio #PlantSky
doi.org
Widespread turnover of a conserved cis-regulatory code across 589 grass species
Abstract. The growing availability of genomes from non-model organisms offers new opportunities to identify functional loci underlying trait variation thro
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Patrick McKenzie @patrickmckenzie.bsky.social · 09/01/2026
I wrote in the most recent issue of Arnoldia about using @inaturalist.bsky.social and, more generally, about the continuing role of natural history in motivating questions in evo bio + my excitement about community science for unlocking new scales of analysis: arboretum.harvard.edu/arnoldia-sto...
“Natural History, Crowdsourced,” an article in Arnoldia by Patrick McKenzie. The article begins with an image of a ruby-throated hummingbird visiting Lobelia cardinalis. Quiet hours in the sun, meditating with the bugs, plants, and birds, are my inspiration as an evolutionary biologist.
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Mark D. Levine @marklevinenyc.bsky.social · 23/12/2025
Year 1 data on congestion pricing in Manhattan… * Vehicle traffic: -11% * Foot traffic: +3.4% * Storefront vacancy: -0.9% * Pollution: -22% * Revenue for mass transit: $548M So YES this has been a huge success.
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Charlie Hale @charleshale.bsky.social · 16/12/2025
Our paper is out in MBE! doi.org/10.1093/molb... We tracked TF binding site evolution across 589 grass species, and found that while binding preferences are pretty stable over 80 million years of evolution, individual binding sites have turned over a lot. Thread here: bsky.app/profile/char...
Grasses share a conserved set of cis-regulatory motifs, but individual motif instances have turned over repeatedly across 80 million years of evolution.
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Chenxin Li, PhD @chenxinli2.bsky.social · 16/12/2025
"cis-regulatory evolution involves turnover of thousands of individual binding site instances while largely preserving transcription factors’ binding preferences." From: academic.oup.com/mbe/advance-...
academic.oup.com
Widespread turnover of a conserved cis-regulatory code across 589 grass species
Abstract. The growing availability of genomes from non-model organisms offers new opportunities to identify functional loci underlying trait variation thro
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 13/12/2025
Identification of Freezing Tolerance QTLs in Tripsacum dactyloides Using Open-Pollinated Bulk Segregant Analysis www.biorxiv.org/content/10.64898/20…
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Neal Agarwal @neal.fun · 10/12/2025
Made a site comparing the sizes of living things :) The great Julius Csotonyi spent 5 months painting over 60 illustrations for the site, no ai used > neal.fun/size-of-life/
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Josh Felton @botanyballer.bsky.social · 08/01/2025
Are you planning to attend Botany 2025? Consider applying to be a PLANTS mentor! You'll be paired with another mentor to help your mentee network, comprehend talks, and discuss grad school and careers, all while making them feel welcome in the botany community. (1/2)
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 05/12/2025
Lineage-specific evolution of regulatory landscapes in polyploid plant and its diploid progenitors www.biorxiv.org/content/10.64898/20…
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 26/11/2025
Super proud of @alyssa-phillips.bsky.social 's paper, now out on biorxiv! She resolves the origin(s) of polyploid big blue-stem, a dominant species in the midwest tall-grass prairie. Her common garden analysis also informs on environmental adaptation and hints at the impacts of polyploidy.
biorxiv.org
The origins and adaptive consequences of polyploidy in a dominant prairie grass
Polyploidy is ubiquitous across North American prairies, which provide essential ecosystem services and rich soil for agriculture. Yet the mechanism driving polyploid abundance is unclear. Multiple hy...
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Patrick McKenzie @patrickmckenzie.bsky.social · 14/11/2025
Available now in @asn-amnat.bsky.social ! Taking on some big-scale natural history: processed >40k @inaturalist.bsky.social images of Monarda fistulosa using computer vision to query for flower presence and phenotype flower color: doi.org/10.1086/739413
doi.org
High-throughput iNaturalist image analysis reveals flower color divergence in Monarda fistulosa | The American Naturalist: Vol 0, No ja
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Zeke Hausfather @zekehausfather.com · 28/10/2025
To quote my friend @drkatemarvel.bsky.social, climate change won't make humanity extinct but we can do better than "not extinct". Raise your standards people!
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Jill Wegrzyn @jillwegrzyn.bsky.social · 16/10/2025
We are seeking speakers for #pag33 hosted in San Diego: Jan 9th at 10:30am. Talk to us about your current/planned efforts to develop genomic resources for threatened/endangered species! @ebpgenome.bsky.social - hosted by @uconneeb.bsky.social @nanoporetech.com Abstracts by Oct 27th! 🧬 🦜 🌱 🐛 🐢
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Emily Pontecorvo @emilypont.bsky.social · 20/10/2025
Most public transit systems depend largely on fare revenue to fund basic operations, but ridership never recovered after the pandemic. I wrote about 3 major transit systems that are facing a fiscal cliff, and the somewhat lackadaisical political response to the crisis. heatmap.news/politics/chi...
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Molecular Biology and Evolution @molbioevol.bsky.social · 21/10/2025
Yun et al. leveraged RNA-seq data to model gene expression variation in the grass Brachypodium distachyon and its response to soil drying, identifying genotypic, environmental, and G×E effects on physiological, metabolic, and gene expression traits. 🔗 doi.org/10.1093/molbev/msaf218 #evobio #molbio
MBE | Genotype by Environment Interactions in Gene Regulation Underlie the Response to Soil Drying in the Model Grass Brachypodium distachyon
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Charlie Hale @charleshale.bsky.social · 18/09/2025
@prereview.bsky.social is a great model for broadening participation in the review process!
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Jeffrey Ross-Ibarra @jrossibarra.bsky.social · 11/08/2025
Our paper showing that variation in transcription factor binding sites underlies the majority of additive genetic variance for phenotypic variation in maize is finally out! Sadly they didn't use our suggested cover image below (made by the inimitable Andi Kur). www.nature.com/articles/s41...
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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 31/07/2025
SPEECHLESS duplication in grasses expands potential for environmentalregulation of stomatal development www.biorxiv.org/content/10.1101/202…
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Chenxin Li, PhD @chenxinli2.bsky.social · 21/07/2025
"We found that TF orthologues from distant species retain nearly identical binding preferences, while on the same timescales the gain and loss of TFBSs are widespread." From: www.nature.com/articles/s41...
nature.com
Recruitment, rewiring and deep conservation in flowering plant gene regulation - Nature Plants
A highly scalable approach is used to generate 3,000 genome-wide maps of transcription factor binding in ten flowering plants, along with multi-species single-nucleus RNA-seq atlases. Together, the re...
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bioRxivpreprint @biorxivpreprint.bsky.social · 18/07/2025
Conservation of chromatin states and their association with transcription factors in land plants www.biorxiv.org/content/10.1101/202…
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Erin Morrow @erinmorrow.bsky.social · 16/06/2025
So grateful to be one of the 500+ early-career scientists returning to their roots this month. The SNAP team behind this campaign has been such a blast to work with! @snapcoalition.bsky.social Check out my piece in the Marietta Daily Journal, as well as other national coverage: bit.ly/3HXlfB4
bit.ly
Graduate Students Push Back Against Science Funding Cuts
Hundreds of graduate students are writing to their hometown newspapers to defend their research, as the Trump administration drastically reduces science funding.
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Deva Woodly @devawo.bsky.social · 14/06/2025
I just like to post these data from time to time to puncture the mythological aura of mid 20th c protests. They were less popular than pretty much any 21st c mass action & people criticizing them used the same lines. Protest is about people coming together, shaping narratives, & building power.
Polling data from Harris & Associates 1966. 
Q: Do you approve of what Freedom Riders are Doing? 22% approve 61%disapprove18%no opinion.
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MaizeGDB @maizegdb.bsky.social · 06/06/2025
We're excited to share PlantCAD browser tracks: a new, unpublished dataset integrating AI techniques for plant genome analysis. Explore it here: github.com/andorfc/Plan... We welcome the community's feedback and innovative use cases for this data!
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Mark A. Hanson @hansonmark.bsky.social · 03/06/2025
URGENT: FlyBase has lost practically all its funding overnight; even user fees are tied up in denied grant funding. 🤬🤯 Any lab using @flybase.bsky.social please donate using the link in post below. This incredible community, on whose backs our #Drosophila labs depend, can't be left out to dry.
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Carl Zimmer @carlzimmer.com · 04/06/2025
“I would like to cure brain cancer. I think that's not particularly controversial.” Be that as it may, the NIH terminated that scientist's grant. Here's a huge survey of the 2,500 grants that NIH has killed or delayed...so far. Gift link: nyti.ms/43Jz1yJ
A chart showing cancelled NIH grants
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Charlie Hale @charleshale.bsky.social · 26/05/2025
New comparative proteomics study from our lab, led by Elad Oren! Contrasting summer and winter protein expression in five perennial grass species, we identified three proteins consistently linked to freezing tolerance across independent adaptations. www.biorxiv.org/content/10.1...
biorxiv.org
Grass Rhizome Proteomics Reveals Convergent Freezing-Tolerance Strategies
Early maize planting requires cold tolerance in temperate regions, which elite maize lacks. Extending the growing season could boost productivity along with more efficient nutrient use. Wild PACMAD gr...
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Isako Di Tomassi @isakoditomassi.bsky.social · 15/05/2025
Holy shit. We have to move the needle on public perception of science. Scientists, share your story in a LOCAL HOMETOWN PAPER op-ed, published June 16! #McClintockLetters #SciComm Share how we serve the public with fed dollars, & insights into fed funded research. tinyurl.com/McClintockLetters
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Daniel Bolnick @danielbolnick.bsky.social · 05/05/2025
Thread with an email being sent to @asn-amnat.bsky.social @sse-evolution.bsky.social @systbiol.bsky.social members today calling for a Tri-society week of action for NSF: Dear members: The tri-societies (ASN, SSE,SSB) are running a ‘Week of Action for NSF’. Your engagement is crucial.
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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 29/04/2025
Replicated repurposing of an ancestral transcriptional complex in land plants www.biorxiv.org/content/10.1101/202…
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Dr. Lucky Tran @luckytran.com · 28/04/2025
Deaths from heart disease down 75%, that’s NIH. Deaths from stroke down 75%, that’s NIH. HIV/AIDS no longer a death sentence, that’s NIH. 99% of FDA approved drugs in the last decade, that’s NIH. Please show this video to anyone who doesn’t understand why the NIH is so important.
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Charlie Hale @charleshale.bsky.social · 27/04/2025
New preprint from my PhD! How cis-regulatory evolution shaped grass diversification worldwide www.biorxiv.org/content/10.1... We looked across 589 (!) grass species to ask: — What regulatory changes enabled grasses to adapt? — How can this inform crop breeding for resilience? Here’s what we found:
biorxiv.org
Extensive modulation of a conserved cis-regulatory code across 589 grass species
The growing availability of genomes from non-model organisms offers new opportunities to identify functional loci underlying trait variation through comparative genomics. While cis-regulatory regions ...
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Julian Sanchez @normative.bsky.social · 09/04/2025
The lesson for universities is you may as well fight back. You'll lose the money either way. The only question is whether you keep your dignity.
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Cedric Feschotte @cedricfeschotte.bsky.social · 09/04/2025
Predictably, it’s our turn to be viciously targeted by this ruthless, short-sighted and spiteful administration. We will RESIST and I have trust in Cornell leadership to mount a potent defense to protect our community and values and ultimately prevail over this evil. www.reuters.com/world/us/us-...
reuters.com
US freezes funding for Cornell, Northwestern University in latest crackdown
The Trump administration has frozen over $1 billion in funding for Cornell University and $790 million for Northwestern University while it investigates both schools over civil rights violations, a U.S. official said on Tuesday.
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Andrew Mercer @awmercer.bsky.social · 03/04/2025
This morning, my @pewresearch.org colleagues published a fantastic report comparing the U.S. general public's attitudes about AI with those of AI experts. Perhaps not surprisingly, there are big differences in positivity towards AI, but there are also fascinating points of agreement. /1
pewresearch.org
How the U.S. Public and AI Experts View Artificial Intelligence
These groups are far apart in their enthusiasm and predictions for AI, but both want more personal control and worry about too little regulation.
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Zeke Hausfather @zekehausfather.com · 24/03/2025
Whenever I post about climate, skeptical folks inevitable respond with this graph. So I decided to do something radical: actually read the underling scientific paper and ask the authors. As it turns out, it actually says the opposite of what skeptics claim: www.theclimatebrink....
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maura quint @mauraquint.bsky.social · 20/02/2025
I keep seeing people just do something they think maybe would be helpful and watching that snowball and it's just amazing. Don't wait for permission, don't wait to be invited. Pick something you think needs to happen and that you can do, and do that thing.
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Rebecca Solnit @rebeccasolnit.bsky.social · 20/02/2025
THE RESIST LIST IS HERE. Proud my team just started this @resistlist.bsky.social, which will list actions that happened and that are slated to happen.
Resist List

They want us to think we’re alone. We are not.
The Resistance is Everywhere.
Hopescroll through stories of people’s noncooperation against Trump’s coup.
Jump to databases of noncooperation or trackers of ligitation and impact.
Follow our social media accounts to stay updated.
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Liz Haswell @ehaswell.bsky.social · 16/02/2025
US plant science peeps: this is a *very* informative summary of the current state of plant science funding, and a call for your stories to help @aspbofficial.bsky.social make their case with public officials. Please re-skeet! 🧪 #PlantScience blog.aspb.org/research-imp...
blog.aspb.org
Research Impacts of Recent Executive Orders and Memos – and a Call to Action to the ASPB Community | Plant Science Today
Since President Donald Trump took office on January 20,4a series of executive actions have shaken the research community. Several executive orders were released that targeted diversity, equity, and in...
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PlantEvolution 🌱🌾 @plantevolution.bsky.social · 15/02/2025
To US colleagues who have lost or are in imminent danger of losing their jobs: please DM whether we can accommodate your research.
German and US flags
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Katie Mack @astrokatie.com · 28/01/2025
If you’re in the US and you’d like to know what projects and vital services federal grants currently fund in your state, you can search here: www.usaspending.gov And you can find the contact information for your elected representatives here: www.usa.gov/elected-offi... They need to hear from you.
usaspending.gov
USAspending.gov
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Robert Yaman @robertyaman.bsky.social · 07/01/2025
New post responding to @mikegrunwald.bsky.social's oped in @nytimes.com Grunwald may be right that industrial farming is necessary. But his clear-eyed realism about environmental challenges should extend to animal welfare too - both need pragmatic solutions consistent with food abundance.
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Matt Hufford @mbhufford.bsky.social · 26/12/2024
New preprint from @sjsnodgrass.bsky.social and our colleagues showing variable fractionation in Zea and Tripsacum post-polyploidy. We welcome your thoughts as we work toward submission to a journal. www.biorxiv.org/content/10.1...
biorxiv.org
Maize and wild relatives show distinct patterns of genome downsizing following polyploidy
Plant genomes are smaller than expected despite the ubiquity of polyploidy due to the process of genome downsizing called fractionation. This process causes loss of DNA sequences, including genes, unt...
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Charlie Hale @charleshale.bsky.social · 21/12/2024
If you're a graduate student working on crop wild relatives, consider applying to give a talk at our grad student-led symposium at Cornell April 11, 2025! More info and application form here: lnkd.in/gZuwbq4s
Call for PhD Student Speakers: Symposium on Maintaining Genetic Diversity: Conserving and Utilizing Wild Relatives of Common Crops

Hosted by Synapsis Plant Breeding Graduate Student Organization at Cornell University
Sponsored by Corteva
Applications accepted through Feb 4, 2025

Link to application: https://tinyurl.com/mkne6ffe
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Dan Gibbs 🌱🧬 @djgibbs.bsky.social · 19/12/2024
The New Phytologist “next generation scientists 2025” meeting will be held at the University of Birmingham, 4th-7th August 🌱🌳 This is a free event aimed at early career plant scientists. For details of the meeting, eligibility, and how to apply, click here : www.newphytologist.org/nextgenevent...
newphytologist.org
Next generation scientists 2025
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