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Michelle Leger

@freejakoba.bsky.social
474 followers 210 following 20 posts

Eukaryotic evolution, protist diversity, mitochondrial evolution At OIST, Japan with @filiphusnik.bsky.social; formerly at IBE, Barcelona with @multicellgenome.bsky.social and Dalhousie University with @andrewjroger.bsky.social 🏳️‍🌈She/her. Views my own

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Reposted by Michelle Leger
Andrew Roger @andrewjroger.bsky.social · 18/03/2026
So you are using IQ-TREE to estimate a tree for "deep time" phylogenetics using amino acid alignments. There is a lot of confusion about how to test model fit. Here are some suggestions.
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Jürgen Strassert @strassert.bsky.social · 13/06/2025
Happy to have contributed to this great article: #Protist genomics: key to understanding eukaryotic evolution. Congrats Alexandra Schoenle et al. #ProtistsOnSky authors.elsevier.com/sd/article/S...
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Manon Demulder @manondemulder.bsky.social · 04/06/2025
We’re kicking off the DinoSphere Online Seminar Series! Join us for our first session with Karel Mockaer (Heidelberg) & Yong Heng Phua (OIST) 📅 1 July 9AM CEST 🔗 tinyurl.com/4mjaverj Spread the word! @protistwtmostest.bsky.social @ehehenberger.bsky.social @chandnibhickta.bsky.social&Norico Yamada
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Michelle Leger @freejakoba.bsky.social · 03/06/2025
The deadline for abstract submission has been extended to July 1st! #multicellularity #animalorigins #EMBO @multicellgenome.bsky.social
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Nicole Coots @nicolecoots.bsky.social · 12/05/2025
My friends in the Life of Retaria group decided to make a podcast! In the first episode, they interview @fabnot.bsky.social about his journey as a scientist. I loved the first episode, hope you do too! @juliemeilland.bsky.social @sandinmm.bsky.social et al. thelifeofretaria.github.io/podcast.html
thelifeofretaria.github.io
The Life of Retaria Experience
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Michelle Leger @freejakoba.bsky.social · 19/04/2025
The page for the EMBO multicellularity meeting organized by @multicellgenome.bsky.social , @martaalvarez.bsky.social and colleagues is online! #multicellularity #protists meetings.embo.org/event/25-mul...
meetings.embo.org
Evolution and origins of multicellularity across the tree of life
The study of the origins and evolution of multicellularity in different lineages has recently captured the attention of many research groups and is fueling the generation of numerous innovative resea…
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Reposted by Michelle Leger
EMBO @embo.org · 16/04/2025
Deadlines still open until 25 April! Learn principles of image processing to determine macromolecular structures by #cryoEM at EMBO Practical Course "Image processing for cryo-electron microscopy" in London, UK, 9–16 September meetings.embo.org/event/25-cry... #EMBOcryoEM #imaging #EMBOevents 🧪
meetings.embo.org
Image processing for cryo-electron microscopy
Cryo electron microscopy (cryo EM) is a major structural biology method for studying macromolecular complexes and cellular structures in their native states. Stable high resolution cryo microscopes, …
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Reposted by Michelle Leger
Cadena SER @cadenaser.com · 08/04/2025
Boris Johnson, atacado por un avestruz en un safari en EEUU
dozz.es
Boris Johnson, atacado por un avestruz en un safari en EEUU
El exprimer ministro británico llevaba a su hijo de 4 años en su regazo cuando el animal metió la cabeza por la ventanilla del coche
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Reposted by Michelle Leger
Vasily Zlatogursky @zlatogursky.bsky.social · 28/03/2025
@amoebadiscovery.bsky.social made an iteresting interview with me about #heliozoa and #centrohelids - I think these organisms are really important, understudied and gorgeous 😍 Also lots other intresting reading and beatiful pictures! #protistsonsky link: tinyurl.com/adiscovery1
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Clint Oakley @clintoak.bsky.social · 04/04/2025
Corals maintain stable populations of essential photosynthetic symbionts by controlling their cell cycle, not by eating them! Our new #PNAS paper monitored and modelled #aiptasia cell cycle, autophagy, and expulsion for over a year. #symbiosis #microbiology www.pnas.org/doi/10.1073/...
Cell cycle arrest in the cnidarian-dinoflagellate symbiosis.
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Reposted by Michelle Leger
Matthias Eberl @eberlmat.bsky.social · 16/03/2025
This. A thousand times this. "If the UK genuinely seeks to position itself as a global leader in academia and innovation, it must foster an environment that is welcoming to top talent."
theguardian.com
Oxford historian faces deportation from UK after doing research on India … in India
Home Office told Manikarnika Dutta to quit Britain for spending too many days abroad for study
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Michelle Leger @freejakoba.bsky.social · 17/03/2025
Really interesting look at the makeup of the peritrich stalk: onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Decoding the Nature of the Peritrich Stalk: A Distinctive Organelle in a Large Group of Ciliated Unicellular Eukaryotes
Ciliates represent a diverse assemblage of ancient single-celled eukaryotes characterized by diverse morphological features. Among certain sessilid peritrich ciliates, an exceptional morphological st...
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Dacks Lab (Evolutionary Cell Biology) @dackslabecb.bsky.social · 16/03/2025
We got to tackle three major questions in biology. So if you are interested in... A) The nature of LECA B) The relevance of patchy proteins for cellular models C) The trafficking machinery present in diplonemids have we got a paper for you! authors.elsevier.com/a/1km493QW8S... #protistsonsky
authors.elsevier.com
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Reposted by Michelle Leger
Saeed Jones @theferocity.bsky.social · 15/03/2025
AND! All the brands have “newsletters” now. Leave me alone! I just wanted a cardigan.
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Kenneth Dumack @dumack.bsky.social · 13/03/2025
#NEWS: Thrilled to announce my #professorship in Aquatic Ecosystem Analyses at Koblenz University! Grateful to past colleagues and excited to collaborate with new ones at Uni Koblenz and the Federal Institute of Hydrology. Hiring soon! Reach out if you're into #protistsonsky, #rivers, and #algae!
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Michelle Leger @freejakoba.bsky.social · 13/03/2025
So nice to see this out! Congratulations Kelsey, @lauraeme.bsky.social , @andrewjroger.bsky.social and colleagues! www.nature.com/articles/s41...
nature.com
A robustly rooted tree of eukaryotes reveals their excavate ancestry - Nature
The root of the eukaryote Tree of Life is estimated from a new, larger dataset of mitochondrial proteins including all known eukaryotic supergroups, showing it lies between two multi-supergroup assemb...
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ehehenberger.bsky.social @ehehenberger.bsky.social · 12/03/2025
PhD position available in Ceske Budejovice (Czechia), funded by ERC KLEPTOS, to study plastid endosymbiosis in kleptoplastidic protists. Are you curious about this process and do you like sampling/cultivation of protists? Join our team by applying here: jobs.bc.cas.cz/en/detail/243 #protistsonsky
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Xavier Grau-Bové 🌾 @xgrau.bsky.social · 06/03/2025
The Biodiversity Cell Atlas team is growing! Open positions: 1. Looking for a developer for the BCA database, with @ebi.embl.org 2. A senior research technician to develop single-cell methods 3. A bioinformatician to analyse new atlases, with @sangerinstitute.bsky.social Info in next post.
Logo of the Biodiversity Cell Atlas initiative
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Kirsty Wan @micromotility.bsky.social · 09/03/2025
Hello origins of eukaryotes enthusiasts! @jekely.biologists.social.ap.brid.gy and I are excited to announce an interdisciplinary discussion meeting in Heidelberg May 19-20! #protistsonsky Places are strictly limited. Register here to avoid disappointment! www.cos.uni-heidelberg.de/en/research-...
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Micah Dunthorn @micahdunthorn.bsky.social · 07/03/2025
Registration is now open for the Protistology Nordics meeting 12–13 May in Jyväskylä #protistsonsky www.jyu.fi/en/events/pr...
jyu.fi
Protistology in the Nordics 2025
Come share your exciting new research in all areas of Protistology.
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Reposted by Michelle Leger
Distribute Aid @distributeaid.org · 04/03/2025
We’re on a mission to bring at-risk trans people 1 year of free medical equipment for hormone therapy—and we’re already at 86% of our goal!  Every $10 donated = 1 kit. Every $100 = 12 kits.  buff.ly/0kcNSjm
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Johan Decelle @johandecelle.bsky.social · 27/02/2025
Postdoc available in Grenoble (France), funded by the ERC SymbiOCEAN, to work on the metabolic connectivity in planktonic photosymbiosis. 👉Passionate by symbiosis & marine protists? skills in bioinfo and molecular biology? Join us! Info: emploi.cnrs.fr/Offres/CDD/U... #protistsonsky #SymbioSky
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Aaron Vogan @fungage-lab.bsky.social · 07/03/2025
We did it! We caught Starship #transposons moving between #fungal species in the lab, including between species separated by ~100my. We think Starships are a mediator of HGT in fungi, akin to conjugative elements in bacteria. Check out the preprint. www.biorxiv.org/content/10.1...
Illustration depicting the ways in which fungi can exchange genetic material with each other. Starship mediated HGT is confirmed experimentally in this preprint.
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Andrew Roger @andrewjroger.bsky.social · 07/03/2025
Nova Scotian friends and colleagues. Consider filling out this automated letter to Premier Houston protesting Bill 12 that gives unprecedented power to the political party in power to dictate that universities become enslaved to their political agenda: win.newmode.net/canadianasso...
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Reposted by Michelle Leger
Arnau Sebé-Pedrós @arnausebe.bsky.social · 03/03/2025
We offer three new positions to join BCA Phase 0: 1. A full-stack developer to work on the BCA database with @ebi.embl.org 2. A senior research technician to develop sc methods 3. A bioinformatician to analyze new atlases with @sangerinstitute.bsky.social Details below. Please, share and repost.
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Michelle Leger @freejakoba.bsky.social · 04/03/2025
FYI @scienceforukraine.bsky.social is still collecting information on support offers for scientists affected by the war in Ukraine (including remote work opportunities), and donations for travel grants scienceforukraine.eu/help
scienceforukraine.eu
scienceforukraine
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Reposted by Michelle Leger
Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 26/02/2025
🌱🧬 Exciting Update for #Multicellularity Fans! 📅 Preliminary program now available for the EMBO Workshop (Oct 9-11, 2025, Barcelona). Sign up for the latest updates & secure your spot! 🔗 multicellgenome.com
multicellgenome.com
Multicellgenome | Multicellgenome
En Multicellgenome, investigamos la evolución de organismos unicelulares a multicelulares. Nuestro laboratorio, parte del Instituto de Biología Evolutiva, se dedica a desentrañar los secretos de esta ...
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Reposted by Michelle Leger
Jeremy Berg @jeremymberg.bsky.social · 15/02/2025
ATTENTION (PLEASE SHARE) If anyone has or knows of any positions that might be appropriate for the NIH staff members who were terminated, please post the information in this thread. There are lots of talented and accomplished people who may be looking for new opportunities.
media.tenor.com
a poster that says if life gives you lemon make lemonade on it
ALT: a poster that says if life gives you lemon make lemonade on it
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Reposted by Michelle Leger
Carolyn Bertozzi @carolynbertozzi.bskyverified.social · 06/02/2025
Check it out! Another novel RNA modification - ADP-ribosylation - that was previously only known on proteins. A cousin to #glycoRNA 👏 www.nature.com/articles/s41...
Graphic showing modification of mRNA with ADP-ribose mediated by bacterial enzyme cmdTAC
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Library Innovation Lab @harvardlil.bsky.social · 06/02/2025
We just launched a 16TB archive of every dataset that has been available on data.gov since November. This will be updated day by day as new datasets appear. It can be freely copied, and we're sharing the code behind it to help others make their own archives of data they depend on.
lil.law.harvard.edu
Announcing the Data.gov Archive | Library Innovation Lab
Today we released our archive of data.gov on Source Cooperative. The 16TB collection includes over 311,000 datasets harvested during 2024 and 2025, a complet...
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Reposted by Michelle Leger
dell cameron @dell.bsky.social · 03/02/2025
WIRED is tracking numerous reports of Musk-related shenanigans across the federal govt. We're looking for fed employees open to discussing the activity they're seeing or to help confirm other reports. Anonymity offered. Please use @signal.org (contact dell.3030). Do not use work networks/devices.
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Guy Verhofstadt @guyverhofstadt.bsky.social · 03/02/2025
We in Europe remember that Canadians died to liberate our continent. In the face of Trump's madness, EU stands with Canada now! There is no reason why EU membership should be off the table. 🇪🇺🇨🇦
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PLOS Biology @plosbiology.org · 04/02/2025
How is transport directionality achieved through the #trypanosome nuclear pore complex? The current model is symmetrical, but this study reveals that the trypanosome #NuclearPore has an asymmetrical architecture, with conserved hubs that direct mRNA transport 🧪 @plosbiology.org plos.io/3Q36QV2
Expansion microscopy identifies novel asymmetric pore proteins. The images show proExM of cell lines co-expressing epitope-tagged versions of NUP76 (top; magenta), NUP149 (middle; magenta), or NUP140 (bottom; magenta) in combination with NUP110 (green). Images were deconvolved (20 iterations for NUP149 and NUP76; 60 iterations for NUP140) and single planes of the nuclei are shown.
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Michael Bok @mikebok.bsky.social · 03/02/2025
Did you know some single-cell dinoflagellates have a lens eye? Anders Garm at the University of Copenhagen is recruiting a postdoc to help find out why. Check out the advertisement, below 🧪 candidate.hr-manager.net/ApplicationI... photo: Franz Neidl
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Dr. Kat Napaaqtuk❄️ @napaaqtuk.bsky.social · 04/02/2025
These ASM DEI pages are still down: asm.org/Articles/202... Both of these: bsky.app/profile/napa... ABRCMS leadership training asm.org/Press-Releas... Pride month: asm.org/IDEAA/Resour... Native focus: asm.org/IDEAA/Resour... 🧪🦠
asm.org
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Sonja-Verena Albers @archaellum.bsky.social · 03/02/2025
Would you expect that Bacteria use an archaellum for swimming? We didn't, but we found that some Chloroflexota do! Find the story here: www.biorxiv.org/content/10.1... A little thread below 1/n
biorxiv.org
Horizontal gene transfer of the functional archaellum machinery to Bacteria
Motility in Archaea is driven by a nanomachinery called the archaellum. So far, archaella have been exclusively described for the archaeal domain; however, a recent study reported the presence of arch...
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Andrew Roger @andrewjroger.bsky.social · 03/02/2025
What happened to the Republicans trying to stand up for free-speech and viewpoint diversity? www.reuters.com/world/us/us-...
reuters.com
US CDC orders pullback of new scientific papers involving its researchers, source says
The U.S. Centers for Disease Control and Prevention is seeking to withdraw all papers involving its researchers that are being considered for publication by external scientific journals to allow for a review by the Trump administration, a federal official told Reuters.
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Isaac Bogoch @isaacbogoch.bsky.social · 01/02/2025
To our American friends who may now be struggling to find health information on US websites: Please check out the Public Health Agency of Canada's website for helpful resources, updated dashboards & practical health tips. 🇨🇦🇨🇦🇨🇦 canada.ca/en/public-he...
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Carl Zimmer @carlzimmer.com · 01/02/2025
"In Uganda, the National Malaria Control Program has suspended spraying insecticide into village homes and ceased shipments of bed nets for distribution to pregnant women and young children." Story on the deadly US aid pause, by @stephanienolen.bsky.social Gift link: www.nytimes.com/2025/02/01/h...
nytimes.com
Health Programs Shutter Around the World After Trump Pauses Foreign Aid (Gift Article)
Lifesaving treatment and prevention programs for tuberculosis, malaria, H.I.V. and other diseases cannot access funds to continue work.
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Bungo Akiyoshi @bungoakiyoshi.bsky.social · 01/02/2025
Asked similar question before but I try again. Anyone knows proteins that localize like this? This protein is present in diplonemids/bodonids/euglenids/Naegleria, which have two flagella, but not in trypanosomatids that have just one flagellum. Potentially interesting for flagella/cilia community?
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Bungo Akiyoshi @bungoakiyoshi.bsky.social · 01/02/2025
The world is full of crazy and sad news, but here is a protein that localizes to only one of the two flagella
Fluorescence microscope image showing a protein that goes to only one flagellum
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Iñaki Ruiz-Trillo @multicellgenome.bsky.social · 01/02/2025
And, it never fails: when you treat colleagues with kindness and respect, you’re welcomed back with open arms—like Alicia, whose warmth, affability and dedication everyone remembers fondly, from our lab to the rest of the Institute. How we treat each other leaves a lasting impression.
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Anne Hanna (she/they) @annehanna.bsky.social · 01/02/2025
FWIW
old.reddit.com
All U.S. federal government websites are already archived by the End of Term Web Archive
Here's all the information you might need. Official website: https://eotarchive.org/ Wikipedia:...
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Parc de Recerca Biomèdica de Barcelona @prbb.org · 31/01/2025
Dive into the fascinating world of field work and its critical role in scientific research. 🎙️ Listen to the 2nd episode of our podcast #ScienceWithAView with evolutionary biologist @martaalvarez.bsky.social (IBE) and nutritionist Sarah Warkentin (@isglobal.org). More info👇
tuit.cat
Beyond the lab: how field work shapes biomedical research - El·lipse
Marta Álvarez-Presas (IBE) and Sarah Warkentin (ISGlobal) dive into the importance and challenges of field work in the second episode of our podcast 'Science With a View', hosted by Chris George.
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Andrew Roger @andrewjroger.bsky.social · 27/01/2025
In case some people have missed it, I'm re-posting a link to our paper on the Anaeramoeba-Desulfobacter symbiotic system. This is one of the papers from my lab that I'm most proud of...and a huge amount of the credit goes to @jonhultqvist.bsky.social !!! www.nature.com/articles/s41...
nature.com
A unique symbiosome in an anaerobic single-celled eukaryote - Nature Communications
Symbiont-housing structures are well-studied in multicellular eukaryotes but rarely in unicellular protists. This study shows that low-oxygen-adapted Anaeramoebae have symbiosomes positioning sul...
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Harmit Singh Malik @harmitmalik.bsky.social · 28/01/2025
If you have been affected by the fires in LA, or are concerned about your ability to keep precious Drosophila strains going during the latest funding crisis, we will host your strains as a backup. Please email me. Please amplify. If you are also able to host fly strains, add your name as well.
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ecSeq Bioinformatics @ecseq.bsky.social · 23/01/2025
🚀 Streamline your bioinformatics workflows! 🧬 Join our Nextflow workshop, May 19-21, 2025—perfect for beginners. 💻 Sign up: www.ecseq.com/workshops/wor... #Nextflow #Bioinformatics #Genomics
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Dacks Lab (Evolutionary Cell Biology) @dackslabecb.bsky.social · 23/01/2025
The Arf Family GTPases are crucial eukaryotic proteins in organelle dynamics. Our paper shows their Asgard origins and the hallmark Arf mechanism of membrane-localization in these asgard proteins! Led by Cathy Jackson @ijmonod.bsky.social; with Marek Elias and @mikicalab.bsky.social. rdcu.be/d7c0q
rdcu.be
The Asgard archaeal origins of Arf family GTPases involved in eukaryotic organelle dynamics
Nature Microbiology - Eukaryotic Arf family proteins involved in endomembrane organelle dynamics arose from the Asgard archaeal ArfR GTPases, indicating this capability likely originated in the...
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Javier del Campo @fonamental.bsky.social · 24/01/2025
#Microbiome science needs more microbiologists www.nature.com/articles/s41...
nature.com
Microbiome science needs more microbiologists - Nature Microbiology
Microbiome science is a multi-disciplinary field, but classical microbiologists are needed to ensure advances are grounded in our understanding of basic microbiological concepts.
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Chris Rinke @chrisrinke.bsky.social · 15/12/2023
Currently, we have the following open positions in the Rinke Group for Microbial MultiOmics and Biorecycling (MMOB) @ the University of Innsbruck, Austria: 1x postdoc 3x PhD 1x RA More info @ rinkelab.org/index.php/op...
Innsbruck, Austria
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