Anouk Willemsen
Scientist working on genome evolution, viruses, computational molecular evolution, and experimental evolution. 👩🏼🔬 🇪🇺🇳🇱🇪🇸🇫🇷🇦🇹
veelab.univie.ac.at
- For some reason, this didn't show up automatically in #giantVirus Single-cell genomics reveals complex microbial and viral associations in ciliates and testate amoebae "The frequent co-occurrence of giant viruses and microbial symbionts, especially in amoebae, suggests multipartite interactions"
- On our way to the 6th Ringberg Symposium on Giant Virus Biology #ringbergGV2025
- Last week we wrapped up the first edition of the Virus evolution and ecology course under the umbrella of the brand new Master in Microbiome Science offered @univie.ac.at. We learned about viruses, their evolution, and their ecological impact across different ecosystems. 1/2 #VirEvol
- We also had bioinformatic exercises going from sequence download to tree building, inference of spillover events and recombination. Shout-out to @amanzanom.bsky.social , @dominikluecking.bsky.social & Büşra for leading this hands-on part. Definitely looking forward to the next edition! 2/2
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- Strain-level diversity of #giantViruses infecting #chlorarachniophyte #algae in the subtropical North Pacific by @fischerlab.bsky.social doi.org/10.1101/2025...
- Reposted by Anouk WillemsenIs it a flagellate? A tiny ball with tentacles? Contamination in my ciliate culture? NEW SUPERGROUP OF EUKARYOTES? Yes to all 4! Meet Solarion - just out in #Nature doi.org/10.1038/s415... Huge congrats to Marek Valt, Cepicka Lab & the star team! Very happy to be part of this project. #ProtistsOnSky
- Reposting for #VirEvol
- Proud moment to see the first Master student of the team (Lotte Mayer) successfully defend her Master's thesis work digging into viral factories of #giantViruses. A link to part of her work: doi.org/10.1101/2025... @erc.europa.eu @univie.ac.at @cemess.bsky.social @dome-vienna.bsky.social
- Last week #ESEB2025 wrapped up. It was a great opportunity to chat with colleagues, hear about great evolutionary research, present the group's work, and be a proud PI of Laura, who did a great job presenting her PhD work! Two years to go until next ESEB! @eseb2025.bsky.social
- Reposted by Anouk Willemsenour paper is online! rdcu.be/exXBX . Who would have thought that some #giantviruses not only have #histones, but even histone variants that make weird #nucleosomes (pdb 9CVT). Fantastic work from Ale Villalta and Chelsea Toner, with Hugo Bisio @molbiolgv.bsky.social and Chantal Abergel
- Heat Shock Protein 70 (AKA HSP70) in Mimiviridae and Phycodnaviridae likely originated from horizontal transfer from their protist hosts. By @sfelena.bsky.social & @amaachi.bsky.social doi.org/10.1101/2025... #giantVirus #VirEvol
- Out now in its final peer-reviewed form @asm.org's Journal of Virology! doi.org/10.1128/jvi.... @dome-vienna.bsky.social @erc.europa.eu @amersocvirology.bsky.social
- New work out! Spearheaded by Lotte, we have developed a single-molecule messenger RNA fluorescence in situ hybridisation (smFISH) protocol for #giantViruses in an #Acanthamoeba host. doi.org/10.1101/2025... 1/4 #ProtistsOnSky #MicroSky @dome-vienna.bsky.social @cemess.bsky.social @erc.europa.eu
- New work out! Spearheaded by Lotte, we have developed a single-molecule messenger RNA fluorescence in situ hybridisation (smFISH) protocol for #giantViruses in an #Acanthamoeba host. doi.org/10.1101/2025... 1/4 #ProtistsOnSky #MicroSky @dome-vienna.bsky.social @cemess.bsky.social @erc.europa.eu
- Combined with other labelling techniques, we show the #Mimivirus transcription and translation sites during an infection cycle in the amoeba host cell. 2/4
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- Reposting for #VirEvol and #giantViruses
- Couldn’t find a virology starter pack so here’s one to get the ball rolling. Repost/reply if you are a virologist so I can find and add you to the list! go.bsky.app/SinqoJUat://did:plc:7fwzucrzygtrp3fj2n4m6kag/app.bsky.graph.starterpack/3lalz5ul6mm2j
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- We sequenced some new #genomes! Novel high-quality #amoeba genomes reveal widespread #codonUsage mismatch between #giantViruses and their hosts. doi.org/10.1101/2024... #ProtistsOnSky #MicroSky 🖥️🧬 1/4
- Back to the lab after a week of really great research on #virus #evolution in Roscoff! The VEE team was represented by Laura, @danischwarz.bsky.social, @dominikluecking.bsky.social, and myself. (Im)patiently waiting for the next edition of this great meeting! #VirEvol #CJM2024_virEvol
- #Txonomy update for the family #Circoviridae, by @viralnomad.bsky.social, @mkrupovic.bsky.social & co. doi.org/10.1007/s007... #VirEvol
- The polinton-like supergroup of #viruses: #evolution, molecular biology, and #taxonomy Review by Koonin, Fischer, Kuhn,and @mkrupovic.bsky.social #VirEvol and related to #giantVirus doi.org/10.1128/mmbr...
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- Great event last week strengthening research partnerships with colleagues from Kyoto University, particularly with the Ogata lab focusing on giant viruses @cemess.bsky.social @univie.ac.at
- New #giantVirus on the block alert! Along with a great team of people lead by @patrickarthofer.bsky.social, Florian Panhölzl, and Matthias Horn, we describe a novel Catovirus infecting the amoeboflagellate #Naegleria @dome-vienna.bsky.social doi.org/10.1038/s414...
- Reposting for #VirEvol
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- Today we farewelled Ruixuan (Ogata lab, Kyoto Univ.) after a month and a half of intense microcopy work! here in the picture featured with the talented Lotte Mayer who supervised and taught him some of our lab techniques!
- Experimental evolution work on the tripartite symbiotic system made up of the marine bacterivore Cafeteria burkhardae, the #giantVirus Cafeteria roenbergensis virus, and the virophage mavirus. #VirEvol #ProtistsOnSky doi.org/10.1093/ve/v...
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- On the evolution of aminoacyl-tRNA synthetases in #Nucleocytoviricota genomes: a likely ancient origin of complex genomes in this viral phylum #VirEvol #EvolSky doi.org/10.1101/2023...
- #horizontalGeneTransfer in #giantViruses likely plays a large role in gene gain/loss events, up to 28-42%! #VirEvol #EvolSky doi.org/10.1101/2023...
- Reposting for new #VirEvol
- Reposting for new #VirEvol
- Reposting for new #VirEvol
- Reposting for new #giantViruses
- Reposting for new #giantViruses
- Reposting for new #giantViruses
- Reposting for new #VirEvol and #giantViruses
- Reposting for new #VirEvol and #giantViruses
- Welcome to the new Giant Viruses feed. This is a custom feed for all posts related to giant viruses/Nucleocytoviricota at large. For now, no signup needed. Tag your post with #giantVirus or any of the classes, orders, families, etc. of Nucleocytoviricota (w/wo #, e.g. #Megaviricetes)! Like and pin!
- Reposting for new #VirEvol
