Bastien Llamas
@dnatimetravel.bsky.social
550 followers 230 following 32 posts
Archaeo/palaeogeneticist, soccer player, kitesurfer, hiker, sweet tooth, world citizen, globe trotter, fascinated by the natural world. My tolerance of haters is limited. He/him
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Reposted by Bastien Llamas
dortizba.bsky.social
Excited to share our new paper in
@GeneticsGSA
! We developed "Retriever," a novel method that enables high-quality genotype imputation in non-model organisms. 🧬 Congratulations to Charles on his first PhD paper!

Paper: doi.org/10.1093/gene...

A thread 🧵👇
Chimeric Reference Panels for Genomic Imputation
Abstract. Despite transformative advances in genomic technologies, missing data remains a fundamental constraint that limits the full potential of genomic
doi.org
Reposted by Bastien Llamas
spoke32.bsky.social
In a hunt more than 200,000 years ago, Neanderthals wielding wooden spears slaughtered horses on the shores of an ancient lake. Geneticists @unituebingen.bsky.social just sequenced DNA from the now-extinct equid species. It's the oldest yet recovered from an open-air site. @science.org
Ancient DNA from horses slaughtered by Neanderthals sheds light on equine evolution
200,000-year-old genes are oldest ever recovered from open-air site
www.science.org
Reposted by Bastien Llamas
Reposted by Bastien Llamas
killgrove.bsky.social
"To be honest, had I been asked in 2003 how long DNA could last, the absolute wisdom of all the people in the know would have been 100,000 years," Gilbert said. "So we're off by a factor of 20 already." 🏺🧪
How long does DNA last?
The world's oldest DNA comes from a 2.4 million-year-old ecosystem in Greenland. Will scientists eventually sequence even older DNA?
www.livescience.com
Reposted by Bastien Llamas
Reposted by Bastien Llamas
markella-morait.bsky.social
New paper out! doi.org/10.1111/1755...
Dental calculus allows us to study the oral microbiome of wild #mammals, but it's still underutilised! 🦷🦠
In this study, we recover oral #microbiome data from the dental calculus of 32 mammal species and share recommendations for future research.
#museomics
Dental calculus deposits on the teeth of a plains zebra (Equus quagga) specimen housed at the Royal Museum for Central Africa, Belgium.
Reposted by Bastien Llamas
reeserichardson.bsky.social
Today, our article "The entities enabling scientific fraud at scale are large, resilient, and growing rapidly" is finally published in PNAS. I hope that it proves to be a wake-up-call for the whole scientific community.

reeserichardson.blog/2025/08/04/a...
A do-or-die moment for the scientific enterprise
Reflecting on our paper “The entities enabling scientific fraud at scale are large, resilient, and growing rapidly”
reeserichardson.blog
Reposted by Bastien Llamas
spaam-community.bsky.social
#MetagenomicsMonday Analysis of aDNA from 1313 ancient human remains spanning 37k years revealed that the rise of infectious diseases coincided with animal domestication around 65k years ago, with disease spread intensifying during pastoralist migrations.
www.nature.com/articles/s41...
The spatiotemporal distribution of human pathogens in ancient Eurasia - Nature
Screening shotgun-sequencing data from ancient humans covering 37,000 years of Eurasian history uncovers the widespread presence of ancient bacterial, viral and parasite DNA and zoonotic pathogens…
www.nature.com
Reposted by Bastien Llamas
the-episiarch.bsky.social
Last week, the UNE Zoology Society organised a discussion panel about de-extinction which (inevitably) turned into a debate where I asked Andrew Pask about his attempt to "de-extinct" the Thylacine.
Here is the recording of it if you want to watch the drama 🧪
echo360.net.au/media/8ccd63...
Promotional image for the "De-Extinction Discussion" event organised by the UNE Zoology Society and the UNE Geoscience Society. The backdrop is a black-and-white photo of a thylacine, the text reads: "Welcome to the De-Extinction Discussion. Ecological and ehtical concerns around bring species back from extinction"
Reposted by Bastien Llamas
Reposted by Bastien Llamas
nancybird1.bsky.social
Check out our recent review 'Power and Limitations of Inferring Genetic Ancestry'- what do we even mean by the term 'genetic ancestry' and what do commonly-used methods actually tell us?
ahgeditor.bsky.social
An Early View: Dr @nancybird1.bsky.social , Prof @turiking.bsky.social, & Prof Hellenthal examine the methodological advances and interpretive limits of genetic ancestry inference. The authors emphasize the need for a stronger focus on conveying uncertainty to mitigate risks of over-interpretation.
Power and Limitations of Inferring Genetic Ancestry
Background The recent emergence of technologies that capture and analyse genetic variation patterns obtained from a person's DNA sample has led to numerous academic and commercial endeavours to infe...
onlinelibrary.wiley.com
dnatimetravel.bsky.social
What a great academic and personal journey, indeed! Congrats @xavierrocarada.bsky.social!
xavierrocarada.bsky.social
🚨 New paper!
🧬 We explore ancestry shifts, kinship ties & Mediterranean links at Mas d’en Boixos (Catalonia), from the Neolithic to the Iron Age.
👨🏻‍🔬A long journey since my master’s! Huge thanks to Cristina, Assumpció & @dnatimetravel.bsky.social! @acadresearch.bsky.social
shorturl.at/B8TlB
Genetic transitions in the Neolithic and Bronze Age at Mas d’en Boixos (Catalonia, Spain)
Human genetics; Biological sciences; Paleobiology
shorturl.at
dnatimetravel.bsky.social
I use em-dashes all the time! The keyboard shortcut is Shift+Option+”-“ on Mac. I also systematically edit hyphens and en-dashes into appropriate em-dashes in any manuscript that goes through my desk…