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Rosi Fregel

@rfregel.bsky.social
485 followers 556 following 53 posts

Professor of Genetics and PI of the Paleogenomics Group at ULL (Canary Islands, Spain) working on ancient DNA of the Canarian human populations and more :)

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Reposted by Rosi Fregel
Kevin Daly @gingerhowley.bsky.social · 02/09/2026
Our paper on ancient sheeppox virus genomes, including many found from parchment samples, is now published af Science Advances. Congrats to all our co-authors and particularly first author Louis. #aDNA share.google/JqVOTB2lvxcO...
share.google
Three thousand five hundred years of sheeppox virus evolution inferred from archaeological and codicological genomes
Sheeppox virus (SPPV) is a major livestock pathogen causing economic hardship through reduced production and death of vulnerable sheep, with written descriptions of sheeppox-like disease recorded sinc...
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Louis L'Hôte @louis-lhote.bsky.social · 03/09/2026
Extremely happy to share our new study on Sheeppox virus (SPPV) ! We notably found many genomes in Medieval parchments🦠📖 A short thread about it : share.google/JqVOTB2lvxcO...
share.google
Three thousand five hundred years of sheeppox virus evolution inferred from archaeological and codicological genomes
Sheeppox virus (SPPV) is a major livestock pathogen causing economic hardship through reduced production and death of vulnerable sheep, with written descriptions of sheeppox-like disease recorded sinc...
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Reposted by Rosi Fregel
Torsten Günther @trstngnthr.bsky.social · 26/08/2026
Diachronic reuse of Neolithic burial monuments by Bronze Age newcomers in Southwestern Britain by @nikolavukovic.bsky.social et al. www.nature.com/articles/s41...
nature.com
Diachronic reuse of Neolithic burial monuments by Bronze Age newcomers in Southwestern Britain - Scientific Reports
Scientific Reports - Diachronic reuse of Neolithic burial monuments by Bronze Age newcomers in Southwestern Britain
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Rosi Fregel @rfregel.bsky.social · 27/08/2026
The Paleogenomics Lab at @ull.es is attending #EAA2026 in Athens
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Reposted by Rosi Fregel
Merchant Adventurers’ Hall @merchantshallyork.org · 13/08/2026
“You looked at the sun didn’t you…”
We are looking at a close up of a painting showing St Lucy holding a plate with two eyes on it. The eyes look like they have seen a lot of stuff going down.
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Christina Warinner @christinawarinner.bsky.social · 13/08/2026
Oh boy - our new ancient DNA module is available for nf-core/mag! Robustly and reproducibly reconstruct ancient metagenome-assembled genomes (MAGs) using our new nf-core/mag tooling! doi.org/10.1371/jour...
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Christina Warinner @christinawarinner.bsky.social · 13/08/2026
Check out our new work on the biodiversity of oral Tannerella! Metagenomic assembly reveals at least four new species with different virulence potential. We also reassign the first reconstructed T. forsythia genome from medieval Dalheim G12 to the newly named T. colubrina.
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CesarFortesLima @cesarforteslima.bsky.social · 19/07/2026
"Tracing the origins of St Helena’s liberated Africans" using isotope data, ancient DNA, and historical records. Xueye Wang, Judy Watson, et al, Hannes Schroeder. July 2026, 𝘚𝘤𝘪𝘦𝘯𝘤𝘦 393(6808). doi: 10.1126/science.aeb3661 Link --> www.science.org/doi/10.1126/...
science.org
Tracing the origins of St Helena’s liberated Africans
In the mid-19th century, St Helena became a key receiving point for Africans “liberated” from illegal slave ships by the British Royal Navy. Of the ~27,000 landed, ~8000 died soon after arrival and we...
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Rosi Fregel @rfregel.bsky.social · 02/07/2026
Congrats Anne!! Very much deserved!
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ICP2026 Stockholm @palaeogenomics.bsky.social · 26/06/2026
What a fantastic conference dinner we had yesterday at the Golden Hall 🪙 of Stockholms City Hall! 🏫 Even the full-delegate (>380) conference group picture we thought we couldn't pull out, happened organically 📸🎉
Conference dinner at ICP2026Full delegate group picture at ICP2026
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ICP2026 Stockholm @palaeogenomics.bsky.social · 27/06/2026
♥️ THANK YOU ♥️ We are overwhelmed by the positive comments and are incredibly happy that everyone enjoyed their time in Stockholm! #ICP2026 was only possible with the hard work of the organizing committee and a marvellous team of ECR volunteers 🟠 at @cpgsthlm.bsky.social
Organizing committee and volunteer team for #ICP2026
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
Tack @palaeogenomics.bsky.social!
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
Finally, I presented a poster on the burial practices of the indigenous people of Gran Canaria
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
@sarabarmas.bsky.social presented a poster on her PhD project dealing with a temporal analysis of the genomic composition of the Indigenous people of Gran Canaria
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
@cdiazper.bsky.social gave a talk about the results of her thesis, including the first paleogenomic data generated from indigenous fauna of the Canary Islands
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
@javiergserrano.bsky.social (now a postdoc at the Sikora Group in the Globe Institute) presented his PhD project on the Indigenous people of El Hierro in the Canary Islands
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Rosi Fregel @rfregel.bsky.social · 27/06/2026
The Paleogenomics group at @ull.es had such a blast at the #ICP2026 in Stockholm!
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ICP2026 Stockholm @palaeogenomics.bsky.social · 26/06/2026
#ICP2026 Stockholm is over, but ICP will return... in 2028! #ICP2028 will be hosted by Trinity College Dublin 🎉☘️🇮🇪
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Mateja Hajdinjak @matejahajdi.bsky.social · 24/06/2026
Our late Neandertal paper is officially out! 💀❤️🧬 www.nature.com/articles/s41... It was years in the making, a tremendous feat spearheaded by our PhD student Alba Bossoms Mesa and co-led by @janetk.bsky.social and @benmpeter.bsky.social
nature.com
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ellie_ancient @elenaessel.bsky.social · 23/06/2026
So happy and proud to see this paper out in @natcomms.nature.com today! We show that traces of human DNA can persist on cave walls for thousands of years. Absolutely fantastic work by the wonderful Alba Bossoms Mesa at @mpi-eva-leipzig.bsky.social and a great team! www.nature.com/articles/s41...
nature.com
Investigating ancient human DNA preservation on cave walls and in rock art - Nature Communications
Ancient DNA can be preserved on materials from archaeological floor deposits such as bones, sediments and artifacts. Here, the authors investigate whether Palaeolithic wall art can preserve human DNA ...
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ICP2026 Stockholm @palaeogenomics.bsky.social · 23/06/2026
Full house for the first plenary talk of #ICP2026 by Ian Barnes "From a simple beginning to endless forms" aka "Why are we here?"
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ICP2026 Stockholm @palaeogenomics.bsky.social · 19/06/2026
We are looking forward to welcoming you all to Stockholm next week for #ICP2026! We have updated our webpage with some important practical info, as well as some hints and tips to get the most out of Stockholm 🇸🇪 Check it out: tinyurl.com/yyyfjh7z
icp2026.palaeogenomics.org
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Rosi Fregel @rfregel.bsky.social · 18/06/2026
Lethal plague outbreaks in Lake Baikal hunter-gatherers 5,500 years ago www.nature.com/articles/s41...
nature.com
Lethal plague outbreaks in Lake Baikal hunter-gatherers 5,500 years ago - Nature
Analyses of ancient DNA from hunter-gatherers near Lake Baikal in southeast Siberia around 5,500 years ago indicate that highly virulent Yersinia pestis emerged earlier than previously estimated, far&...
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Miren Iraeta Orbegozo @mireniraorb.bsky.social · 15/06/2026
The stapes are the smallest bone in the human skeleton and seem to be the best to preserve DNA! Very interesting paper by Sağlıcan, Sevkar et al: genome.cshlp.org/content/earl...
genome.cshlp.org
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Rosi Fregel @rfregel.bsky.social · 08/06/2026
Congrats Torsten!! Very much deserved!
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Centre for Palaeogenetics @cpgsthlm.bsky.social · 03/06/2026
🧬 New paper in Cell! Analysis of 12 cave lion genomes shows that cave lions and modern lions may have diverged more than three times earlier than previously thought – as early as 1.7 million years ago! AND…they interbred when temperatures dropped! Paper: www.cell.com/cell/fulltex... 🧵 1/9
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Gen Wojcik @genandgenes.bsky.social · 18/05/2026
Percentage of source gender in science articles

Female sources were quoted less frequently than male sources in science news over the years
2018
2019
2020
2021
2022
Year
Male
Female
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Kevin Daly @gingerhowley.bsky.social · 13/05/2026
The first release of the metAaRCive is out!!! A resource of metadata for published ancient animal genomes, curated by members of @aarc-community.bsky.social - 1518 complete records for its first release! [missing: equids!] github.com/AaRC-Animal-... #adna
github.com
Release v26.05.08 · AaRC-Animal-aDNA-Research-Community/metAaRCive
This is the first release of metAaRCive, containing 1518 complete entries. metAaRCive: Overview metAaRCive is a resource of metadata for published ancient animal genomes, curated by members of AaRC...
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Rosi Fregel @rfregel.bsky.social · 09/05/2026
Congrats Gen!!
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Adam "Ben" Rohrlach @brohrlach.bsky.social · 04/05/2026
Are you screening your ancient DNA study for chromosomal aneuploidies? Or looking for a new way to call genetic sex? Regardless of sequencing data type? Our Bayesian method (implemented in R as RChASM) has now been published in Bioinformatics: doi.org/10.1093/bioi...
Diagnostic plot for aneuploidy assignment in RChASM.
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Marina Silva @marinasdsilva.bsky.social · 30/04/2026
Our preprint is now out, looking at genomic history and selection in Britain, with a focus on the Roman and early medieval periods. Comments welcome! www.biorxiv.org/content/10.6... @boothicus.bsky.social @leospeidel.bsky.social @pontus-skoglund.bsky.social
biorxiv.org
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Centre for Palaeogenetics @cpgsthlm.bsky.social · 21/04/2026
We present DNAharvester 🎉🦴🚜🧬 A pipeline to process highly degraded ancient DNA data that integrates metagenomic filtering, competitive mapping, multiple alignment strategies, reference bias evaluation and much more. GitHub: github.com/NBISweden/DN... Preprint: www.biorxiv.org/content/10.6...
DNAharvester's workflow.
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Centre for Palaeogenetics @cpgsthlm.bsky.social · 22/04/2026
New paper alert 🚨 A study led by #CPGSthlm researchers found DNA from a bear in 9.6k year old lake sediments. This potentially rewrites the history of brown bears in Scandinavia! 🧬🐻🐾🏔️🧊 Check @officialernst.bsky.social thread 👉 bsky.app/profile/offi... OA article 👉 www.pnas.org/doi/10.1073/...
pnas.org
Ancient environmental genome reveals a migratory brown bear individual in Early Holocene Scandinavia | PNAS
After the last ice age, species migrated into a newly deglaciated Scandinavia. Brown bear recolonization is thought to have occurred from two direc...
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Leo Speidel @leospeidel.bsky.social · 20/04/2026
New preprint led by Hrushikesh Loya, me, and Simon Myers where we introduce GhostBuster! www.biorxiv.org/content/10.6... The idea is to find all the different ways a target individual relates to reference groups in genealogies, to "bust the ghosts" in our ancestry.
biorxiv.org
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SPAAM @spaam-community.bsky.social · 20/04/2026
On this week's #MetagenomicsMonday: #aDNA study 🧬traces the roots of French #wine! 🍇 Roman trade, clonal propagation, and even a medieval grape identical to modern #PinotNoir emerge from 4,000 years of #viticulture. www.nature.com/articles/s41... #SPAAM #archaeobotany #domestication #agriculture
nature.com
Ancient DNA reveals 4000 years of grapevine diversity, viticulture and clonal propagation in France - Nature Communications
Here, the authors present aDNA from 49 grape pips spanning the Bronze Age to Medieval period in France and surrounding areas. They find evidence of long-distance exchange of domestic varieties…
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Miguel Angel Contreras Sieck💀🧬🦴🇵🇸 @miguelontlacuatzin.bsky.social · 18/04/2026
Genome-wide genealogies reveal deep admixtures forming modern humans www.biorxiv.org/content/10.6...
biorxiv.org
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Patrícia Pečnerová @patriciachrzan.bsky.social · 16/04/2026
Can you believe that until now there were more genomes sequenced for the woolly mammoth than for living African elephants? Today, we bring you the first genomic, continent-scale analyses of 232 high-quality genomes of both species, the savanna and forest elephant. www.nature.com/articles/s41...
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Rosi Fregel @rfregel.bsky.social · 15/04/2026
Muchísimas felicidades María!! Más que merecido! ❤️
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Rosi Fregel @rfregel.bsky.social · 14/04/2026
Congrats Kevin!!
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Ernst Johnson @officialernst.bsky.social · 14/04/2026
Very excited to share our study of an ancient environmental genome extracted from lake sediment! It originates from a brown bear that lived around 9,600 years ago close to the last ice-sheet remains in northern Sweden, and has an unexpected mitochondrial haplogroup. 1/7 www.pnas.org/doi/10.1073/...
pnas.org
Ancient environmental genome reveals a migratory brown bear individual in Early Holocene Scandinavia | PNAS
After the last ice age, species migrated into a newly deglaciated Scandinavia. Brown bear recolonization is thought to have occurred from two direc...
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Antiquity Journal @antiquity.ac.uk · 10/04/2026
When did people in northern Europe first adopt animal husbandry? #NationalFarmAnimalsDay 🏺 #Archaeology Isotope analysis of animal remains from Swifterbant 🇳🇱 suggests livestock management was practised in the Dutch wetlands over 200 years earlier than expected. 🆓 doi.org/10.15184/aqy...
Summary chart showing mean and standard deviation of carbon and nitrogen isotope values from Swifterbant compared to human and faunal values from the Mesolithic site of Hardinxveld. One group of cows and sheep at Swifterbant displays a diet similar to humans and dogs, suggesting they were being managed by humans.
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Fishbourne Roman Palace @romanpalace.bsky.social · 09/04/2026
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ICP2026 Stockholm @palaeogenomics.bsky.social · 31/03/2026
We are looking forward to welcoming you to Stockholm in only 83 days 😍 Our conference will be packed with exciting oral presentations 💁‍♂️, poster sessions 🧾, coffee breaks ☕, and pre-conference workshops 👷‍♀️ Take a look at the preliminary program ⬇️⬇️⬇️
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Katerina Douka @katerinad.bsky.social · 01/04/2026
A few years ago, using palaeoproteomics, we identified a tiny hominin bone from Denisova Cave and named it Denisova 17 (D17). A rather unremarkable sliver. At the time, I wondered, could it be Denny’s sibling (the Neanderthal/Denisovan hybrid we had just reported)? Well, turns out: no. 🧵1/4
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Centre for Palaeogenetics @cpgsthlm.bsky.social · 27/03/2026
New paper alert 🚨 Researchers at #CPGStlhm have analyzed ancient genomes from an Islamic cemetery in Ibiza (950–1150 CE) 🏖️ They found a highly diverse community with ancestry from Europe and North Africa! The paper was published in @natcomms.nature.com OA link www.nature.com/articles/s41...
Map of the Mediterranean during the Middle Ages, showing the Islamic areas of influence and Ibiza.Ricardo, lead author of the article, processing one of the samples in the lab.
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Anders Bergström @anders-bergstrom.bsky.social · 25/03/2026
Out today is our paper 'Genomic history of early dogs in Europe', in which we uncover the identity of the dogs that lived in Europe before agriculture—during the Paleolithic & Mesolithic periods: doi.org/10.1038/s415.... A thread ⬇️ (10) @biouea.bsky.social @crick.ac.uk @mpi-eva-leipzig.bsky.social
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Carlos Chavez Ramirez @carloschalicothere.bsky.social · 20/03/2026
Giraffes have long necks and a long history of scientists debating their taxonomy! 1 species with 9 subspecies had generally been accepted, but whole genome data from 50 giraffes from all previously recognized subspecies support 4 species and 7 subspecies! #2026MMM doi.org/10.1016/j.cub.2021.04.033
Overview of Admixture results based on genome-wide SNPs supporting four giraffe species (top)—northern giraffe (Giraffa camelopardalis), the reticulated giraffe (G. reticulata), the Masai giraffe (G. tippelskirchi), and the southern giraffe (G. giraffa)—and 7 subspecies (bottom). Colors correspond to (sub)species membership. Map of sub-Saharan Africa shows the geographic ranges of each giraffe (sub)species where colors correspond to (sub)species colors from Admixture results.
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Torsten Günther @trstngnthr.bsky.social · 05/03/2026
The @scilifelab.se Ancient DNA Unit is recruiting a (permanent) Research Engineer for planning user projects and generating #aDNA 🧬 data: Application deadline: March 25th 🧪🏺 www.uu.se/en/about-uu/...
uu.se
Research engineer - Uppsala University
Research engineer, Department of Organismal Biology, Uppsala University
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Biancamaria Bonucci @bbonucci.bsky.social · 26/02/2026
Really happy to share our new preprint on the co-occurrance of Y.pestis and Erysipelothrix spp. during prehistory. 🔥🔥🔥 In the study, we find the earliest evidence to date of Y.pestis in Southern Europe and 60 new Erysipelothrix genomes spanning 20k years 🦠🐄🚶‍♂️⌛ www.biorxiv.org/content/10.6...
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