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Jolien van Hooff

@jvhooff.bsky.social
440 followers 316 following 28 posts

Assistant Professor | Laboratory of Microbiology | Wageningen University & Research Evolution of genomes & protein complexes | eukaryotic origins & diversity.

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Reposted by Jolien van Hooff
Levayer Lab @levayerr.bsky.social · 20/08/2026
This 👇, and Europe should also have more scheme to finance those essential "infrastructures" (rathen than implementing 10 millions single person grant...) www.nature.com/articles/d41...
nature.com
Treat biological databases as infrastructure, not projects
Letter to the Editor
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Travis Wheeler @wheelerlab.org · 07/08/2026
Orthology is central to comparative genomics. Join us at the tail end of eccb2026.org in Geneva (3 Sep) for a full day of orthology: bit.ly/ECCB_ortho Intro to major tools, hands-on tutorials, and an "orthology clinic" for your own data. Extend your ECCB trip, or come just for the tutorial.
bit.ly
Tutorials and workshops
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Ursula Oggenfuss @oggenfussursula.bsky.social · 20/07/2026
I am happy to share that my NWO Veni project was awarded 🍄🧬🔻! In this project, I will study how transposons shape genome folding, evolution, and adaptation in a fungal salamander pathogen. I am incredibly thankful for all the support and look forward to this next chapter #fungi #transposons #TEsky
A sketch of two salamander species, with a zoomed in picture of a fungal fruit body releasing spores, leading to a small stretch of DNA which ends in a folded chromosome with many green triangles indicating transposon insertions
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Chung Hyun Cho @chc-evobio.bsky.social · 04/07/2026
Excited to share our new preprint led by Fred and me in collaboration with the archaeal community! We found that the molecular foundation of histone-based chromatin has pre-eukaryotic roots in Asgard archaea. (1/4) #ArchaeaSky www.biorxiv.org/content/10.6...
biorxiv.org
Emergence of histone-based chromatin complexity in Asgard archaea
The emergence of the eukaryotes coincided with the diversification of histone proteins and their post-translational modifications by enzymes that constitute the core of eukaryotic chromatin. Yet the e...
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Philip Ball @philipcball.bsky.social · 19/06/2026
If the genome is not a blueprint, what is it? My attempt to unravel this particularly knotty question, in @quantamagazine.bsky.social www.quantamagazine.org/why-the-huma...
quantamagazine.org
Why the Human Genome’s Tangled Physicality May Confound AI | Quanta Magazine
Our genetic heritage is not a blueprint or an algorithm, as many biologists have imagined, but something else entirely.
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Svetlana Dodonova @dodonova-sveta.bsky.social · 19/06/2026
Excited to share our new preprint! 🧬❄️ by brilliant @mdreimann.bsky.social and great collaborators! Using cryo-ET&EM, we reveal archaeal chromatin in a near-native state: variable-beads-on-a-string fibers shaped by growth phase and histone composition #ArchaeaSky www.biorxiv.org/content/10.6...
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Cees Dekker @ceesdekker.bsky.social · 16/06/2026
WORK: our Bionanoscience department at TU Delft is looking to hire an Assistant Professor in Biophysics of Living Systems. Apply! Deadline 30 July careers.tudelft.nl/job/Delft-As... RT=nice
careers.tudelft.nl
Assistant Professor in Biophysics of Living Systems
Assistant Professor in Biophysics of Living Systems
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Daniel Tamarit @danieltamarit.bsky.social · 22/05/2026
I'm looking for an enthusiastic student to join my team as a PhD candidate on archaeal genome evolution 🦠💻 Work in beautiful Utrecht, at @binfutrecht.bsky.social, an international group full of caring, amazing scientists, and with frequent cake breaks! www.uu.nl/en/organisat... Please share! 🙏
uu.nl
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Laura Eme @lauraeme.bsky.social · 24/04/2026
Check out the draft program for the Comparative Genomics of Unicellular Eukaryotes meeting! Want to attend? Are you a speaker? Don't wait! Registration is closes on May 4. comparativegenomics2026.com/program/ w/ @cstairs.bsky.social
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Trends in Genetics @cp-trendsgenetics.bsky.social · 27/03/2026
"Chromatin organization in Asgard archaea: Histones, SMC complexes, and the archaeal roots of eukaryotic chromatin" by Remus Dame & colleagues (@damelab.bsky.social) "Understanding chromatin organization in Asgard archaea is key to understanding how eukaryotic chromatin evolved." shorturl.at/6bLvx
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Jolien van Hooff @jvhooff.bsky.social · 27/03/2026
How would chromatin look and work in Asgard archaea? @damelab.bsky.social and I share our ideas in our Trends in Genetics review, out now at doi.org/10.1016/j.ti...
doi.org
Redirecting
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DEEMteam_Orsay @deemteam.bsky.social · 23/03/2026
We have just published a short note on archaeal phylogeny: complex mixture models support a deep placement of Methanonatronarchaeia within Euryarchaea and indicate that three recently described groups (Halorutilales, Afararchaeaceae, and Ordosarchaeia) are actually the same. shorturl.at/5GMpU
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Bram van Dijk 🏳️‍🌈 @bramvandijk.bsky.social · 23/03/2026
Phd Position alert 🚨 Join our project ASTRAfun (Adaptation and Starship Traffic in Root-Associated fungi), in which we will use computational models to unveil the hidden dynamics of fungal evolution. It’s not going to be just regular fun. It’s going to ASTRAfun. 🤓 www.uu.nl/en/organisat...
uu.nl
PhD Position in Computational Modelling of Fungal Evolution
How do giant mobile elements called ‘Starships’ reshape fungal plant pathogens? Help us computationally model their spread and impact in nature and agriculture!
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Floor Vermeulen @floorvermeulen.bsky.social · 17/03/2026
🌞 Alles staat klaar voor de verkiezingen morgen. Woensdag is de keuze aan de kiesgerechtigde inwoners van Wageningen. Stemmen kan vanaf 7.30 tot 21:00 uur bij 21 stembureaus met stempas en identiteitsbewijs ⬇️ www.wageningen.nl/verkiezingen...
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Kassiani Panagiotou @kassipan.bsky.social · 05/03/2026
Just over ten years after the discovery of the first Asgard archaeal genomes, we revisit the rapid expansion of this remarkable archaeal lineage. From diverse genomes and metabolisms to eukaryotic signature proteins and the first cultured representatives. www.nature.com/articles/s41...
nature.com
Diversity, ecology, cell biology and evolution of the Asgard archaea - Nature Reviews Microbiology
The Asgard archaea have become a cornerstone of archaeal research, particularly for studies aiming to unravel the origin and early evolution of eukaryotes. This Review outlines the current state of th...
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Stephan Köstlbacher @stephkoe.bsky.social · 05/03/2026
🧵 1/10 New paper out in @natmicrobiol.nature.com from my postdoc at @mib-wur.bsky.social! 🎉 How eukaryote-like was the archaeal ancestor of eukaryotes? Sequence searches alone can't tell us — so we used protein structure prediction to look deeper. 🧬 www.nature.com/articles/s41...
nature.com
Prediction of eukaryotic cellular complexity in Asgard archaea using structural modelling - Nature Microbiology
A structural catalogue of the Asgard archaeal pangenome reveals hundreds of eukaryotic-like proteins that suggest a higher degree of cellular complexity in the archaeal ancestor of eukaryotes.
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Marike Stellinga @marikestellinga.bsky.social · 04/03/2026
We krijgen opvallend veel reacties op deze podcast. We zijn daar blij mee want we vinden het een belangrijk probleem. Dank aan iedereen die reageert en de podcast deelt! Het zijn er te veel om allemaal te kunnen beantwoorden. @maartenschinkel.bsky.social
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Carl Zimmer @carlzimmer.com · 18/02/2026
One of the biggest questions in biology is how complex cells evolved about 2 billion years ago. Here's my new story on how scientists are solving the mystery of eukaryotes like us. Gift link: nyti.ms/4qMbo22
nyti.ms
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Max Raas @maxraas.bsky.social · 13/02/2026
Recently, a Hypothesis was posed in @jcellsci.bsky.social in which the root of eukaryotes was placed between kinetoplastids and all other eukaryotes. From this, it was implied that LECA did not have a kinetochore. We argue this is highly unlikely. A 🧵(1/12) Read our reply here: tinyurl.com/n87myhpr
tinyurl.com
The LECA had a conventional kinetochore and the kinetoplastid kinetochore is a derived feature – a critical evaluation of Akiyoshi, 2025
Summary:Akiyoshi, 2025 presented a hypothesis with implications for the early evolution of eukaryotes and eukaryotic cell division machinery. In this Correspondence, the authors conclude that this hyp...
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Laura Eme @lauraeme.bsky.social · 02/02/2026
Comparative Genomics of Unicellular Eukaryotes (San Feliu, Spain): Abstract submission is open, with a short deadline! comparativegenomics2026.com Join us as we explore the most diverse, surprising, and still largely uncharted branches of the eukaryotic tree.
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Dame lab at Leiden University @damelab.bsky.social · 16/01/2026
I am very pleased to share that our database of prokaryotic and viral histones, ProHistoneDB, is now available online at prohistonedb.org. Please also see the accompanying article in J Mol Biol: doi.org/10.1016/j.jm...
prohistonedb.org
ProHistoneDB
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 05/01/2026
I have a postdoc position in metagenomic exploration available in my group. Candidates with documented experience in phylo & metagenomics and preferably with petabase-scale data mining and GLM workflows are encouraged to apply. Come join us! 🧬🦠💻 Please repost Apply here: www.wur.nl/en/vacancy/p...
wur.nl
Postdoctoral researcher Phylogenomics and metagenomics
Are you just as excited as we are about the fascinating world of microorganisms? Do you want to contribute to exploring and genomically characterize novel prokaryotic lineages? Do you have a PhD degre...
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Laura Eme @lauraeme.bsky.social · 13/12/2025
Microbial eukaryotes keep challenging assumptions about eukaryotic cell and genome biology. Our upcoming workshop explores the frontier of protist genomics and how it shapes cell biology, ecology and evolution. Please save the date! Talks, posters and ECR events Websites and details coming soon
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Henry Gee 亨利·纪 @endofthepier.bsky.social · 03/12/2025
Eukaryogenesis was a billion year spree, but the acquisition of mitochondria happened when the party was winding down www.nature.com/articles/s41...
nature.com
Dated gene duplications elucidate the evolutionary assembly of eukaryotes - Nature
Analysis of eukaryotic gene sequences using a relaxed molecular clock methodology indicate that eukaryotes emerged 3.0–2.25 billion years ago as a result of mitochondrial endosymbiosis with complex ar...
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Jolien van Hooff @jvhooff.bsky.social · 09/10/2025
Very nice documentary about the origins of complex life with my PhD advisor Berend Snel @binfutrecht.bsky.social!
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 06/10/2025
OK, somebody should say it: the term 'one-stop-shop' has no place in academic research. Due to their diverse and exploratory nature, there is no single solution for scientific projects - else this would be routine research. RT if you agree, or feel free to argue otherwise below.
media.tenor.com
michael scott from the office is wearing a suit and tie and making a funny face .
ALT: michael scott from the office is wearing a suit and tie and making a funny face .
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Jolien van Hooff @jvhooff.bsky.social · 02/10/2025
Newbies in the lab! Very happy to announce @jongpad.bsky.social starting a PhD and @oggenfussursula.bsky.social starting a postdoc position with us @mib-wur.bsky.social. Excited to have you around!
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Tobias Warnecke @tobiaswarnecke.bsky.social · 29/09/2025
Become my colleague @oxfordbiochemistry.bsky.social ! 2 Associate Professorships in the areas of - prokaryotic/eukaryotic microbiology - metabolism my.corehr.com/pls/uoxrecru...
my.corehr.com
Job Details
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Marnix Medema @marnixmedema.bsky.social · 08/09/2025
We are looking for a 3-year postdoc to work with Daniel Probst, Justin van der Hooft and myself on an exciting project involving federated learning and integrative omics for discovery of new antibiotics from natural products. Apply here: www.wur.nl/en/vacancy/p... Please share!
wur.nl
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Arnau Sebé-Pedrós @arnausebe.bsky.social · 15/07/2025
We are looking for a student to continue our work on chromatin evolution: www.nature.com/articles/s41... www.biorxiv.org/content/10.1... The project with @seanamontgomery.bsky.social will focus on chromatin state readers across eukaryotes. More info: recruitment.crg.eu/content/jobs...
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Tobias Warnecke @tobiaswarnecke.bsky.social · 01/09/2025
Please re-post: If you know (or are!) somebody who might fancy doing a PhD (Oct 2026 start) in my group @oxfordbiochemistry.bsky.social, working on chromatin evolution in prokaryotes (or other things we're interested in), please have a look at www.bioch.ox.ac.uk/supervisors-...
bioch.ox.ac.uk
Supervisors and Projects
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Jolien van Hooff @jvhooff.bsky.social · 21/07/2025
Congrats to the team for releasing this preprint and tool! @stephkoe.bsky.social @kassipan.bsky.social @danieltamarit.bsky.social @ettema.bsky.social
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Francesca Mattiroli @fmattiroli.bsky.social · 10/07/2025
Apply to our PhD program!!
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Eelco Tromer @eelcotromer.bsky.social · 23/06/2025
Happy to see our work published and glad to have contributed together with @maxraas.bsky.social ! Looking forward to all the projects that will come out of this work!
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Laura Eme @lauraeme.bsky.social · 22/06/2025
Excited to share our new paper in @cellreports.bsky.social that reshapes our understanding of chromosome organization's deep evolutionary roots! Our work dives into the origins of the machinery that structures our very genomes. 🔗: doi.org/10.1016/j.ce... #Genomics #Evolution #CellBiology #LECA
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Svetlana Dodonova @dodonova-sveta.bsky.social · 26/05/2025
We’ve uncovered Asgard chromatin structures formed by a Hodarchaeal histone : closed hypernucleosome conserved in archaea and an open form resembling the H3-H4 eukaryotic octasome. Fantastic work by @harshranawat.bsky.social! www.biorxiv.org/content/10.1... #Chromatin #Asgard #Archaea #cryoEM
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EvolDir @evoldir.bsky.social · 20/05/2025
Wageningen University seeks a postdoc for a 2-year project on phage-host-superhost evolution using spatially explicit modeling. PhD required. Apply: www.wur.nl/en/vacancy/postdoctoral-… #postdoc
wur.nl
Postdoctoral researcher - Interacting scales in host-pathogen-superhost coevolution
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 14/05/2025
On this day, 10 years ago, my lab published the @nature.com paper reporting the discovery of the Asgard archaea (Lokiarchaeota at the time), revealing the archaeal nature of eukaryotic cells, and reshaping the Tree of Life. What a ride it has been since then... www.nature.com/articles/nat...
nature.com
Complex archaea that bridge the gap between prokaryotes and eukaryotes - Nature
This study identifies a clade of archaea that is the immediate sister group of eukaryotes in phylogenetic analyses, and that also has a repertoire of proteins otherwise characteristic of eukaryotes—pr...
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Jolien van Hooff @jvhooff.bsky.social · 15/05/2025
This promises to be a cool PhD project with a very inspiring and nice PI!
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Arnau Sebé-Pedrós @arnausebe.bsky.social · 07/05/2025
Check out our latest work on the evolution of animal genome regulation out today in @nature.com. Nicely summarized below by @ianakim.bsky.social. www.nature.com/articles/s41... This is a major output from our ERC-StG project Evocellmap @erc.europa.eu at @crg.eu
nature.com
Chromatin loops are an ancestral hallmark of the animal regulatory genome - Nature
The physical organization of the genome in non-bilaterian animals and their closest unicellular relatives is characterized; comparative analysis shows chromatin looping is a conserved feature of ...
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Julian Vosseberg @julianvosseberg.bsky.social · 17/04/2025
One week left to submit your abstract! @eseb2025.bsky.social
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Arthur Charles-Orszag @acharlesorszag.bsky.social · 16/04/2025
Preprint alert! I’m publishing my last paper from my postdoc work on archaeal cell biology, with @mullinslab.bsky.social, @archaellum.bsky.social, @samjlord.bsky.social, @marleenvw.bsky.social, @arghya93.bsky.social, and more great folks (thread below with more details)
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Eduardo Rocha @epcrocha.bsky.social · 16/04/2025
New postdoc position in our lab (2 y+): evolutionary genomics of integrons and MGEs with focus on vibrio-phage interactions. Great environment @pasteur.fr for science, career building. Super collaborators @celineloot.bsky.social @amazeld.bsky.social @fredoleroux.bsky.social 3 weeks to apply!
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Katie Mack @astrokatie.com · 09/04/2025
The problem with most machine-based random number generators is that they’re not TRULY random, so if you need genuine randomness it is sometimes necessary to link your code to an external random process like a physical noise source or the current rate of US tariffs on a given country.
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James Gahan @jgahan.bsky.social · 08/04/2025
My group is hiring a new Postdoc to work on gene regulation and chromatin in Nematostella. Please RT! For more information see here: gahanlab.com tinyurl.com/34xke35d
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Jolien van Hooff @jvhooff.bsky.social · 31/03/2025
Only a few more days to apply for this exciting postdoc position (deadline: 6th of April)!
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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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Laura Eme @lauraeme.bsky.social · 12/03/2025
🚨 New paper alert! 🚨 A robustly rooted tree of eukaryotes sheds light on their deep evolutionary ancestry—suggesting that the Last Eukaryotic Common Ancestor (LECA) may have had an excavate-like cell architecture. 🧵🔬 (1/) 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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Fabian van Beveren @fabianvanbeveren.bsky.social · 12/03/2025
Excited to share our recent work on the evolution of ectomycorrhizal plants! 🌳 🧬 🖥️ doi.org/10.1111/nph.70054 With: Yvet Boele, @puginiercamille.bsky.social, @mbianc.bsky.social, Cyril Libourel, @maximebonhomme.bsky.social, @kellerjeanphd.bsky.social, @pierremarcdelaux.bsky.social A thread: (1/5)
doi.org
Ectomycorrhizal symbiosis evolved independently and by convergent gene duplication in rosid lineages
Click on the article title to read more.
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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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