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Tom Williams

@tweethinking.bsky.social
244 followers 98 following 16 posts

Computational evolutionary biologist - phylogenetics, molecular and microbial evolution. Lab website: tancata.github.io

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Reposted by Tom Williams
Maria Hondele @mariahondele.bsky.social · 18/09/2026
The heatwave is finally over - just in time for our “Frosty Foci” to finally come online! ❄️🦠 We found that E. coli builds a transient nucleolus-like ribosome biogenesis compartment during cold adaptation, when RNA (mis)folding makes ribosome biogenesis challenging.
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Maria Hondele @mariahondele.bsky.social · 18/09/2026
Big shoutout and thank you to our wonderful collaborators Nussi, @olivierduss.bsky.social, @kausthubh.bsky.social and @tweethinking.bsky.social. Thanks a lot also to @basler-lab.bsky.social, @ujenal.bsky.social & labs, who taught us how to get bacteria to behave for some beautiful cell biology!
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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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ssolo.bsky.social @ssolo.bsky.social · 04/07/2026
Ancestral genome reconstructions get noisier the deeper in time you go. The usual response: distrust them and joke about reading entrails. Ours is to train on the noise! The result is calibrated phenotype prediction back to the LBCA deep in the Archaean. New preprint www.biorxiv.org/content/10.6...
biorxiv.org
Models trained with noisy genomes extend bacterial phenotype prediction into deep time
Predicting phenotype from genotype in extant organisms is increasingly tractable through the accumulation of genome sequences and the development of machine-learning algorithms. Here we show that mach...
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ERR_Moody @emoody.bsky.social · 30/05/2026
Very exciting to see this out at last, we use both sequence-based and structural phylogenetics to try and understand the pre-eukaryotic origins of the commander complex! Also some serious protein crystallography and cryo-EM, (five new pdb entries!) www.nature.com/articles/s41...
nature.com
The prokaryotic origins of the COMMD protein family involved in eukaryotic membrane trafficking - Nature Communications
COMMD proteins assemble into a heterodecameric ring in the Commander complex, which plays a role in endosomal membrane trafficking and signalling in eukaryotes. Here, Liu et al. identify COMMD-like pr...
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Joshua Hamm @joshnhamm.bsky.social · 19/05/2026
Our paper examining the evolution of halophily in DPANN is out now in MBE! academic.oup.com/mbe/advance-...
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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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Siobhán O'Brien @siderophile.bsky.social · 18/02/2026
MENI is back! Join us in Dublin this August 2026 for our 3rd Meeting for Microbial Evolution in Ireland. We are delighted to have @rachelmwheatley.bsky.social @drrebeccajhall.bsky.social @jpjhall.bsky.social and @tweethinking.bsky.social join us as keynote speakers this year. miniurl.com/MENI
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Tom Williams @tweethinking.bsky.social · 06/02/2026
meetings.embo.org/event/26-mic... Announcing the 2026 EMBO course in Computational and Experimental Microbiomics, to be held at Bath. The course brings together experiments and bioinformatics to study host-microbe interactions and co-evolution. Register now, or at least by 11 May, if interested :)
meetings.embo.org
Computational and experimental microbiomics
The critical contribution of microbiota to animal, plant and environmental health is now widely accepted. Progress has been driven by two parallel approaches: in silico analyses of large -omics data …
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Wen-Cong Huang @wentsunghwang.bsky.social · 13/11/2025
Our analyses converge on a narrow archaeal root region at/near the base of the Euryarchaeota, supporting hypotheses in which the Last Archaeal Common Ancestor was a complex, free-living (hyper-)thermophilic methanogen.
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Wen-Cong Huang @wentsunghwang.bsky.social · 13/11/2025
#Archaea, #DPANN, #phylogenetic_reconciliation New preprint online! www.biorxiv.org/content/10.1...
biorxiv.org
Phylogenetic reconciliation supports a methanogenic ancestor of the Archaea and a derived origin for host-associated lineages
The phylogeny of the Archaea continues to be revisited and revised as new groups are discovered and phylogenetic methods improve, but key questions about their early evolution remain. It has been sugg...
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Guillaume Méric @gmeric.bsky.social · 12/11/2025
New PhD position in my lab at @uniofbath.bsky.social (with both @tweethinking.bsky.social & Dr Bethan Littleford-Colquhoun)! We're looking for someone keen on bioinformatics and microbiome evolution. Important info below on eligibility & URSA competition funding👇 www.findaphd.com/phds/project...
findaphd.com
The overlapping microbiome: ecology, function and resilience beyond species boundaries at University of Bath on FindAPhD.com
PhD Project - The overlapping microbiome: ecology, function and resilience beyond species boundaries at University of Bath, listed on FindAPhD.com
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Corey Holt @coreyholt.bsky.social · 09/10/2025
I'm looking for a PhD student to dive into some protist genomes and maybe find some cool parasites like this (very flexible) apicomplexan. www.findaphd.com/phds/project... Please do reach out if you're interested. And APPLY EARLY! The advert will be taken down when a suitable candidate is found.🪱🦀🐟
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Tom Williams @tweethinking.bsky.social · 09/10/2025
There's a PhD position now available with me in Bath, on the evolution of symbiosis. www.findaphd.com/phds/project.... The supervisory team also includes @anja1.bsky.social @phil-donoghue.bsky.social and others. NB, this is open both to UK-based students *and* to international students :)
findaphd.com
The genomic basis of symbiotic integration at University of Bath on FindAPhD.com
PhD Project - The genomic basis of symbiotic integration at University of Bath, listed on FindAPhD.com
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Harry Low’s Lab @lowlab.bsky.social · 14/07/2025
❗️ Exciting review alert❗️focussing on the evolution and mechanism of prokaryotic ESCRT-III-like systems.. fun collaboration with Tom Williams @tweethinking.bsky.social! doi.org/10.1016/j.sb...
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Sishuo Wang @sishuowang.bsky.social · 11/07/2025
some thoughts on new methods to root a phylogenomic tree: the smart, the symbiotic, the violent sishuowang2022.wordpress.com/2025/06/19/n... #phylo @tweethinking.bsky.social @andrewjroger.bsky.social
sishuowang2022.wordpress.com
New Ways to Root Phylogenomic trees: the Smart, the symbiotic, the violent
To root a phylogenomic tree is very important to study the evolutionary relationship between species. However, typically the substitution models (say GTR, LG, etc.) people use are time-reversible m…
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Tom Williams @tweethinking.bsky.social · 17/06/2025
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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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ssolo.bsky.social @ssolo.bsky.social · 04/04/2025
Dating Bacteria is hard due to the lack of maxima. Assuming aerobes likely postdated the GOE gave us better resolved ages, but also surprised us, but not Dr Dayhoff, showing O2 use predated its atmospheric rise by 900 Mys and helped oxygenic photosynthesis to evolve. www.science.org/doi/10.1126/...
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Pilhofer Lab 🦠❄️🔬 @pilhoferlab.bsky.social · 21/03/2025
Asgard archaea have actin - but what about microtubules? Where do they come from? 🧐 Our new paper www.cell.com/cell/fulltex... by @xujwet.bsky.social & @florianwollweber.bsky.social, in collaboration with the Schleper & Wieczorek labs, describes tiny Asgard microtubules! #TeamTomo #ArchaeaSky 1/6
Credit: Margot Riggi (@margotriggi.bsky.social), Max-Planck Institute of Biochemistry (@mpibiochem.bsky.social)
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Tom Williams @tweethinking.bsky.social · 20/03/2025
Very interesting indeed for enthusiasts of symbiotic integration...
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Reposted by Tom Williams
Alexis Stamatakis @stamatak.bsky.social · 19/03/2025
Check out raxtax, our new open-source tool for taxonomic classification of barcoding sequences, it's 2.7-1000 times faster than competing tools and also implements fancy uncertainty scores: www.biorxiv.org/content/10.1...
biorxiv.org
raxtax: A k-mer-based non-Bayesian Taxonomic Classifier
Taxonomic classification in biodiversity studies is the process of assigning the anonymous sequences of a marker gene (barcode) to a specific lineage using a reference database that contains named seq...
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Tom Williams @tweethinking.bsky.social · 19/03/2025
www.pnas.org/doi/10.1073/... It's nice to see this study come out - genomic and evolutionary characterisation of deep soil-dwelling bacteria and their relatives, led by Xun Qian and colleagues.
pnas.org
Diversification, niche adaptation, and evolution of a candidate phylum thriving in the deep Critical Zone | PNAS
The deep subsurface soil microbiome encompasses a vast amount of understudied phylogenetic diversity and metabolic novelty, and the metabolic capab...
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Tom Williams @tweethinking.bsky.social · 12/03/2025
www.nature.com/articles/s41... Exploring the root of the eukaryotic tree with new phylogenetic models (including extending branch-heterogeneous models to bigger datasets that previously). Very interesting stuff, nice to see the preprint published!
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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Carlos Santana Molina @santanamolina.bsky.social · 03/03/2025
Asgardarchaea & Alphaproteobacteria: key players for the assembly eukaryotic central carbon metabolism! Our new study reveals their gene contributions to glycolysis & TCA cycle, supporting synthrophic scenarios of eukaryogenesis. rdcu.be/eb0aK
rdcu.be
Chimeric origins and dynamic evolution of central carbon metabolism in eukaryotes
Nature Ecology & Evolution - Analysis of the eukaryotic gene repertoires mediating central carbon metabolism identifies ancestral contributions from Alphaproteobacteria, Asgardarchaeota and...
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Tom Williams @tweethinking.bsky.social · 18/02/2025
Job announcement: a four-year postdoc position in phylogenomics at the Milner Centre for Evolution, Bath, with James Clark and me (I'm moving to Bath later in the year...). www.bath.ac.uk/jobs/Vacancy...
bath.ac.uk
ED12442 Research Associate in Phylogenomics (fixed-term) - Jobs at Bath
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Tom Williams @tweethinking.bsky.social · 17/02/2025
www.biorxiv.org/content/10.1... A new collaborative paper with Anja Spang, Wen-Cong Huang, @chrisrinke.bsky.social @ettema.bsky.social @ssolo.bsky.social Zheng-Shuang Hua Maraike Probst and Lenard Szantho. We investigated the phylogenetic position and metabolic evolution of Panguiarchaeum.
biorxiv.org
Phylogenomic analyses reveal that Panguiarchaeum is a clade of genome-reduced Asgard archaea
The Asgard archaea are a diverse archaeal phylum that includes the host lineage from which eukaryotes evolved. Due to the importance of the Asgard archaea for our understanding of cellular evolution a...
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MRC Laboratory of Molecular Biology @mrclmb.ac.uk · 11/02/2025
New research on ancient Asgard archaeal ESCRT-III proteins reveals evolutionary secrets of membrane remodelling. Diorge Souza, Javier Espadas and Sami Chaaban, investigated the ESCRT-III proteins with Buzz Baum and Aurelien Roux. Read more: www2.mrc-lmb.cam.ac.uk/asgard-archa... #LMBResearch (1/2)
Evolution, structure and membrane remodelling function of the ESCRT-III superfamily in eukaryotes and their closest relatives Asgard archaea. The two subfamilies, B-type and A-type, have distinct structural properties to perform sequential steps of the membrane remodelling pathway.
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Tom Williams @tweethinking.bsky.social · 08/02/2025
Nice to see this out :)
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Philip Donoghue @phil-donoghue.bsky.social · 17/01/2025
Our LUCA study, led by @emoody.bsky.social has made it to #shortwave @NPR! Thanks to @jonlambert.bsky.social for indulging us @bristolpalaeo.bsky.social www.npr.org/2025/01/17/1...
npr.org
Life as we know it descended from a single cell. What do we know about LUCA? : Short Wave
Imagine the tree of life. The tip of every branch represents one species, and if you follow any two branches back through time, you'll hit an intersection. If you keep going back in time, you'll event...
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Tom Williams @tweethinking.bsky.social · 06/01/2025
Very interesting paper on the conservation of genes involved in fungal symbiosis in land plants! www.pnas.org/doi/full/10....
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Philip Donoghue @phil-donoghue.bsky.social · 19/12/2024
Yay! Our LUCA study shorturl.at/09YR8 made into @quantamagazine.bsky.social list of 2024's biggest breakthroughs! Thanks to @emoody.bsky.social @tweethinking.bsky.social Davide Pisani @bristolpalaeo.bsky.social and the rest of our amazing team!
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Tom Williams @tweethinking.bsky.social · 04/12/2024
New short paper in GBE on the evolution of Pseudotrichomonas track.smtpsendmail.com/9032119/c?p=...
track.smtpsendmail.com
Transcriptome and evolutionary analysis of Pseudotrichomonas keilini, a free-living anaerobic eukaryote
Abstract. The early evolution of eukaryotes and their adaptations to low-oxygen environments are fascinating open questions in biology. Genome-scale data f
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