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Kassiani Panagiotou

@kassipan.bsky.social
119 followers 130 following 9 posts

PhD candidate @Ettema lab | Laboratory of Microbiology (WUR)

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Reposted by Kassiani Panagiotou
Wen-Cong Huang @wentsunghwang.bsky.social · 14/08/2026
Our paper is out in Nature Communications! 🌳🧬 We investigate the position of the archaeal root, the nature of the last archaeal common ancestor, and the evolution of DPANN archaea using state-of-the-art phylogenetic and gene-tree–species-tree reconciliation approaches. doi.org/10.1038/s414...
nature.com
Phylogenetic reconciliation supports a methanogenic ancestor of the Archaea and a derived origin for host-associated lineages - Nature Communications
Key questions about the early evolution of archaea remain unanswered. Here, Huang et al. use improved methods of genome evolution to propose a euryarchaeal root for archaea, a methanogenic ancestor, a...
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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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Andrew Roger @andrewjroger.bsky.social · 28/05/2026
1/ Our new paper in Systematic Biology "Modeling Site-and-Branch-Heterogeneity with GFmix" led by @cgpmcc.bsky.social describes improved ways to model compositional heterogeneity across both sites and branches—an important source of error in deep phylogenomics. doi.org/10.1093/sysb...
doi.org
Modeling Site-and-Branch-Heterogeneity with GFmix
Abstract. Phylogenetic trees are often inferred from protein sequences sampled from diverse taxa across the tree of life. The compositions of these amino a
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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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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 05/03/2026
Finally out in @natmicrobiol.nature.com: Prediction of eukaryotic cellular complexity in Asgard archaea using structural modelling. Great work by @stephkoe.bsky.social @kassipan.bsky.social @jvhooff.bsky.social www.nature.com/articles/s41...
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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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Kathryn (Katy) Appler @katyappler.bsky.social · 18/02/2026
Beyond thrilled to share that our study has been published! This project encompasses years of work, including my thesis research on Asgard archaea in the @archaeal.bsky.social lab at @utmsi.bsky.social and @texasscience.bsky.social!!! #MicroSky #ArchaeaSky 1/12
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Brett Baker @archaeal.bsky.social · 18/02/2026
New paper from my team detailing a greatly expanded genomic database of Asgard archaea revealing of high energy metabolism those related to eukaryotes! Led by @katyappler.bsky.social lots of help from @jameslingford.bsky.social @valdeanda.bsky.social @kassipan.bsky.social doi.org/10.1038/s415...
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 18/02/2026
Finally out in @nature.com: a new piece of the puzzle of how complex life evolved. Lead by @archaeal.bsky.social & @katyappler.bsky.social. Great collab with @greening.bsky.social and @kassipan.bsky.social. More pieces to follow soon! www.nature.com/articles/s41...
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 11/02/2026
Today we published a Correction on our 2023 @nature.com paper reporting the heimdallarchaeial ancestry of eukaryotes: www.nature.com/articles/s41... Corrected paper: www.nature.com/articles/s41... Importantly, the re-analyses of the corrected dataset are consistent with the original findings.
nature.com
Author Correction: Inference and reconstruction of the heimdallarchaeial ancestry of eukaryotes - Nature
Nature - Author Correction: Inference and reconstruction of the heimdallarchaeial ancestry of eukaryotes
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 26/11/2025
Come join us! Soon I will be advertising a postdoc vacancy in my group as part of my @erc.europa.eu AdG project 'DARK ROOTS'. Focus of the project will be on phylo- and metagenomic mining of novel prokaryotic lineages. I will soon post a link here - stay tuned, and please repost! #asgardarchaea
media.tenor.com
a man walking in a field with an umbrella
ALT: a man walking in a field with an umbrella
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Daniel Tamarit @danieltamarit.bsky.social · 23/10/2025
Exultant to have been awarded a Vidi grant by the Dutch Research Council (NWO)! Can't wait to get started! Stay tuned for two upcoming (PhD student & postdoc) positions to study archaeal genome evolution. Also huge congrats to my colleague @dorotakawa.bsky.social! www.uu.nl/en/news/21-v...
uu.nl
21 Vidi grants awarded to Utrecht-based researchers
21 researchers from Utrecht University, University Medical Center Utrecht, and Princess Máxima Center have each been awarded a Vidi grant worth up to €850,000.
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Wen-Cong Huang @wentsunghwang.bsky.social · 14/08/2025
academic.oup.com/mbe/advance-... Happy to share this one. We investigated the #phylogenetic placement and #genome_evolution of Pangui/Njordarchaea-unique #Asgardarchaea that might have undergone genome reduction...
academic.oup.com
Phylogenomic analyses reveal that Panguiarchaeum is a clade of genome-reduced Asgard archaea within the Njordarchaeia
Abstract. The Asgard archaea are a diverse archaeal phylum important for our understanding of cellular evolution because they include the lineage that gave
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Kassiani Panagiotou @kassipan.bsky.social · 20/07/2025
Excited to share our work on WitChi! 🛠️🖥️ We tested it on the GTDB r220 archaeal supermatrix (5,869 taxa & 10,101 cols) removing 55% of sites in <2h. The phylogeny showed several interesting groupings with overall improved branch support: #phylogenetics #ArchaeaSky #MSA #opensource #MEvoSky #MicroSky
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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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Detmer Sipkema @detmersipkema.bsky.social · 27/05/2025
Our review on how thermophilic carbon monoxide(!)-eating microbes can aid the transition to renewable carbon-based products.
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Wen-Cong Huang @wentsunghwang.bsky.social · 23/05/2025
#Asgard,#phylogeny 1/ 🧵 Does MAGs contamination affect the placement of Njord as suggested by Zhang et al, 2025? www.nature.com/articles/s41... Our updated analysis suggests instead... www.biorxiv.org/content/10.1...
biorxiv.org
Phylogenomic analyses reveal that Panguiarchaeum is a clade of genome-reduced Asgard archaea within the Njordarchaeia
The Asgard archaea are a diverse archaeal phylum important for our understanding of cellular evolution because they include the lineage that gave rise to eukaryotes. Recent phylogenomic work has focus...
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Reposted by Kassiani Panagiotou
Daniel Tamarit @danieltamarit.bsky.social · 14/05/2025
New vacancy in my team! PhD student position on microbial genome evolution, focusing on the evolutionary principles underlying bacterial genome architecture. Please repost and share with talented MSc students in #evobio, bioinformatics or related :) www.uu.nl/en/organisat... #MEvoSky #MicroSky
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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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Jolien van Hooff @jvhooff.bsky.social · 05/03/2025
Exciting news! I'm looking for a computational biologist to join my lab at Wageningen University & Research! It's a 3-year postdoc position on Holomycota genome architecture and evolution. Spread the word! www.wur.nl/en/vacancy/p...
wur.nl
Postdoc Comparative genomics and genome architecture in early-diverging fungi and their protist relatives (3-year position)
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Thijs J. G. Ettema 🦠🔬🇳🇱🇸🇪🇪🇺 @ettema.bsky.social · 04/12/2024
Not new here but will become more active at @bsky.app (I am no longer active on X) Follow me to hear more about the wonderful world of microbes (evolution, archaea, symbiosis, new microbes, ...). Expect occasional rants about academia, 🇳🇱 politics, life, etc. My research group: go.bsky.app/MzZPftE
go.bsky.app
Ettema Lab Wageningen
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