Axel Visel
@axelvisel.bsky.social
3.5K followers 600 following 260 posts
Genome Scientist. Studies how DNA makes humans, mice, plants, microbes. At Lawrence Berkeley National Lab and Joint Genome Institute. Views are my own.
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axelvisel.bsky.social
Starting in 15 minutes!
stefanschoenfelder.bsky.social
Very much looking forward to @axelvisel.bsky.social's talk "From Nucleotide to Megabase Scale: Enhancer Function in Development and Disease" in our @enhancedgenomics.bsky.social seminar series "The 3D Regulatory Genome"

📅 02 October 2025 (today!)
⏰ 4 pm GMT

Join:
us02web.zoom.us/webinar/regi...
Reposted by Axel Visel
enhancedgenomics.bsky.social
TOMORROW!
Register👉https://us02web.zoom.us/webinar/register/WN_do2hl_GoS8-_PkyHgANPPA
enhancedgenomics.bsky.social
🧬Next speaker: @axelvisel.bsky.social (@berkeleylab.lbl.gov/@jgi.doe.gov) presents 'From Nucleotide
to Megabase Scale: Enhancer Function in Development and Disease'

👨‍🔬Moderated by @stefanschoenfelder.bsky.social
📅 Thu Oct 2, 4pm UK time
👉Register: us02web.zoom.us/webinar/regi...

#VirtualSeminar
axelvisel.bsky.social
Looking forward to my @enhancedgenomics.bsky.social seminar next week

Register now to join us!
enhancedgenomics.bsky.social
🧬Next speaker: @axelvisel.bsky.social (@berkeleylab.lbl.gov/@jgi.doe.gov) presents 'From Nucleotide
to Megabase Scale: Enhancer Function in Development and Disease'

👨‍🔬Moderated by @stefanschoenfelder.bsky.social
📅 Thu Oct 2, 4pm UK time
👉Register: us02web.zoom.us/webinar/regi...

#VirtualSeminar
axelvisel.bsky.social
To find the right email address, go to PubMed and expand the "Affiliations". It's usually the last author (for biology articles).
axelvisel.bsky.social
I often share links to paywalled research articles.

Quick reminder: NEVER pay those outrageous journal access fees. If you don’t have access, just email the corresponding author. They’re usually glad to share a PDF for free, whether or not you’re a “professional scientist.”
axelvisel.bsky.social
Congratulations to Allegra Aron, Jana Pilatova, @ryanziels.bsky.social, Andrew Vander Yacht, Itamar Shabtai, and Victoria Orphan!

@jgi.doe.gov @biosci.lbl.gov @berkeleylab.lbl.gov
axelvisel.bsky.social
Looks like I made the puzzle too difficult. It's been a month and still no reports of anyone having found all 10.

Which confirms: Enhancer discovery is hard!
Reposted by Axel Visel
jgi.doe.gov
Don't miss the JGI's own Heejung Cho at this year's @berkeleylab.lbl.gov Research SLAM. The event will take place Sept. 18 at 3 p.m. PT. You can stream the event here: streaming.lbl.gov

Or attend in person at the Building 50 Auditorium!

@biosci.lbl.gov @axelvisel.bsky.social
Promotional graphic for Berkeley Lab Research SLAM featuring Heejung Cho from the Joint Genome Institute, with a logo incorporating a magnifying glass, and a decorative green pawn shape.
Reposted by Axel Visel
jgi.doe.gov
🚨NOTICE TO OUR USERS🚨

The Genome Portal will be replaced with the Data Portal application sometime next month.

Portal users can book a session with our team for technical help, feedback or a guided walk-through of the new Data Portal. 🖥️🧬

More information: jgi.doe.gov/analyze-data...
JGI Portals | Joint Genome Institute
Our data platforms are a key resource for the broader scientific community and require constant developments to meet the ever-changing demands of our users.NOTICEThe JGI Genome Portal is reaching its ...
jgi.doe.gov
Reposted by Axel Visel
jgi.doe.gov
Abstracts are due Oct. 19 for the 2025 New Lineages of Life Symposium — 80 slots available!

See speakers below.

More info: jgi.doe.gov/work-with-us...

Full Agenda: jgi.doe.gov/work-with-us...

@axelvisel.bsky.social 🖥️🧬
axelvisel.bsky.social
The JGI starter pack: Members, users, collaborators, and friends of the Joint Genome Institute @jgi.doe.gov

Still many open slots, if you are working with the JGI and want to be added, DM me.

go.bsky.app/7jENfK9
axelvisel.bsky.social
Ready to explore New Lineages of Life with @jgi.doe.gov ? 🧬🦠

Registration for our 2025 NeLLi Symposium is now open. For the first time in collaboration with @unlv.edu

Mark the date: November 6-7 in Las Vegas, NV
jgi.doe.gov
You can now register for the November NeLLi Symposium!

Join us in November for talks focused on the most recent expansions of the Tree of Life, and the latest discoveries toward the evolution of cellular complexity and microbial symbiosis. 

Learn more: jointgeno.me/NeLLi

@nigelmouncey.bsky.social
2025 NeLLi Symposium | Joint Genome Institute
Las Vegas, NV Immediately followed by 1.5-day jamboree on November 6-7
jointgeno.me
axelvisel.bsky.social
Postdoc opportunity with @tomasbruna.bsky.social here at @jgi.doe.gov @berkeleylab.lbl.gov:

Develop, benchmark, and apply Plant Genomic Language Models (gLMs) 🌿🧬💻

jobs.lbl.gov/jobs/computa...

#AI #PlantGenomics #gLMs #Postdoc
Graphic announcing a Computational Postdoctoral Fellow position.  Text: Computational Postdoctoral Fellow – Plant Genomic Language Models (gLMs). JGI is seeking a Computational Postdoctoral Fellow to join a funded project at Berkeley Lab’s Joint Genome Institute applying genomic language models (gLMs) to unlock new biological insights in plants. Join one of the world’s leading genomics facilities to pioneer AI applications in plant biology, with access to cutting-edge computational resources and diverse genomic datasets. This project will focus on developing and exploring applications of gLMs to plant genomes, from identifying novel regulatory elements to revealing evolutionary patterns across species, with particular interest in cross-species and data-limited scenarios. In this role, you will design tasks and datasets to test and extend gLM capabilities, apply models to generate new biological hypotheses, and share findings through high-impact publications and presentations.
axelvisel.bsky.social
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.”
axelvisel.bsky.social
In 2026, @jgi.doe.gov and EMSL will (for the first time!) hold a joint user meeting in Seattle from March 3-5

Program details to be announced, but our registration site just launched - so you can already secure your spot:

jgi.doe.gov/work-with-us...
Promotional banner for the 2026 EMSL-JGI User Meeting. Theme: “Empowering Automated Laboratories – Integrating Experimentation with Data.” Event dates: March 3-5, 2026. Location: Seattle Marriott Waterfront, 2100 Alaskan Way, Seattle. The banner features a skyline of Seattle with Mount Rainier in the background, surrounded by colorful hexagonal graphics showing scientific imagery such as DNA, lab automation, microbial structures, and plants. EMSL and JGI logos are shown at the top.
axelvisel.bsky.social
Yes, absolutely! They are clearly not all artifacts. But some of them are and the problem is more pronounced in plants than in animals. Fortunately, the preprint also highlights how a unified re-annotation strategy can reduce these artifacts, making whatever PAV remains even more interesting!
Screenshot of text from the preprint: "Unsurprisingly, within both flowering plants and amniotes, gene PAV becomes increasingly common with increasing divergence time—more diverged genomes share fewer orthologs, likely due to sequence deletions, pseudogenization and other forms of large-scale mutation followed by selection or drift. However, the absolute amount of gene PAV and the degree that PAV is affected by divergence time was remarkably different between plants and animals." https://www.biorxiv.org/content/10.1101/2025.08.14.670405v1.full
axelvisel.bsky.social
For details, see @jotlovell.bsky.social's excellent explainer thread 🧵

bsky.app/profile/jotl...
jotlovell.bsky.social
Determining presence-absence variation (PAV) across reference genomes is a major goal of pangenome analysis. It turns out that A LOT of gene PAV is due to methodological artifacts.

We explore the causes of this in soybean and cotton datasets in our recent preprint: www.biorxiv.org/content/10.1...
pangenome 'expansion' curves for cotton and soybean
axelvisel.bsky.social
🌿Plant pangenomes🌿 have a LOT of genomic presence-absence-variation.

Or do they???

A new @jgi.doe.gov preprint by @tomasbruna.bsky.social @jotlovell.bsky.social @avril-m-harder.bsky.social Avinash Sreedasyam takes a closer look

www.biorxiv.org/content/10.1...
A two-panel Scooby-Doo meme. In the top panel, Fred pulls the mask off a villain labeled “Presence-absence-variation in plant genomes.” In the bottom panel, the unmasked villain is revealed to be “Annotation artifacts.”