Xavier Roca-Rada, PhD
@xavierrocarada.bsky.social
Archaeogeneticist - Postdoctoral Research Associate at Brown University
Pinned
The genetic history of Portugal over the past 5,000 years - Genome Biology
Background Recent ancient DNA studies uncovering large-scale demographic events in Iberia have presented very limited data for Portugal, a country located at the westernmost edge of continental Eurasi...
shorturl.at
๐ต๐นOur paper on Portugal's genetic history is now published in Genome Biology. We present Portugalโs largest ancient genome collection, with deeper analyses than our pre-print, revealing migrations, admixture & continuity shorturl.at/TcErC
@acadresearch.bsky.social @dnatimetravel.bsky.social
@acadresearch.bsky.social @dnatimetravel.bsky.social
Reposted by Xavier Roca-Rada, PhD
๐จ 6th HAAM-RADIO Webinar
๐ African Population Demography and Social Organizations of the Past
๐๏ธ Wed, 28 Jan 2026
Register here:
๐ forms.gle/FuBTTX4wreW4...
#AncientDNA #HumanGenetics #AfricanHistory #HAAM #Webinar
@abinstitute.bsky.social @cesarforteslima.bsky.social
@hildegunnink.bsky.social
๐ African Population Demography and Social Organizations of the Past
๐๏ธ Wed, 28 Jan 2026
Register here:
๐ forms.gle/FuBTTX4wreW4...
#AncientDNA #HumanGenetics #AfricanHistory #HAAM #Webinar
@abinstitute.bsky.social @cesarforteslima.bsky.social
@hildegunnink.bsky.social
January 23, 2026 at 3:03 PM
๐จ 6th HAAM-RADIO Webinar
๐ African Population Demography and Social Organizations of the Past
๐๏ธ Wed, 28 Jan 2026
Register here:
๐ forms.gle/FuBTTX4wreW4...
#AncientDNA #HumanGenetics #AfricanHistory #HAAM #Webinar
@abinstitute.bsky.social @cesarforteslima.bsky.social
@hildegunnink.bsky.social
๐ African Population Demography and Social Organizations of the Past
๐๏ธ Wed, 28 Jan 2026
Register here:
๐ forms.gle/FuBTTX4wreW4...
#AncientDNA #HumanGenetics #AfricanHistory #HAAM #Webinar
@abinstitute.bsky.social @cesarforteslima.bsky.social
@hildegunnink.bsky.social
Reposted by Xavier Roca-Rada, PhD
๐จEVENT & CALL for ECR speakers
๐๐งฌ HAAM Radio Webinar - Reconstructing past demography, interactions, and social organisation in Africa
๐ 28 Jan 2026
โฐ Short-talk call extended to 14 Jan
๐ shorturl.at/YzqMS
๐๐งฌ HAAM Radio Webinar - Reconstructing past demography, interactions, and social organisation in Africa
๐ 28 Jan 2026
โฐ Short-talk call extended to 14 Jan
๐ shorturl.at/YzqMS
HAAM-Radio Webinar January 2026 - Call for Speakers
For our next HAAM-Radio webinar scheduled for the 28th of January (times tbh), we're looking for young career researchers (Master's and PhD students as well as Early Postdoctoral Researchers) speciali...
shorturl.at
January 8, 2026 at 2:15 PM
๐จEVENT & CALL for ECR speakers
๐๐งฌ HAAM Radio Webinar - Reconstructing past demography, interactions, and social organisation in Africa
๐ 28 Jan 2026
โฐ Short-talk call extended to 14 Jan
๐ shorturl.at/YzqMS
๐๐งฌ HAAM Radio Webinar - Reconstructing past demography, interactions, and social organisation in Africa
๐ 28 Jan 2026
โฐ Short-talk call extended to 14 Jan
๐ shorturl.at/YzqMS
Reposted by Xavier Roca-Rada, PhD
we made a tool!
ybyra is a lightweight, flexible Y-chromosome haplogroup caller. It is faster, easier to tune and more robust than other tools particularly for low-coverage or ancient DNA data. And it has lots of detailed output โ including plots!
www.biorxiv.org/content/10.1...
ybyra is a lightweight, flexible Y-chromosome haplogroup caller. It is faster, easier to tune and more robust than other tools particularly for low-coverage or ancient DNA data. And it has lots of detailed output โ including plots!
www.biorxiv.org/content/10.1...
November 26, 2025 at 8:29 AM
we made a tool!
ybyra is a lightweight, flexible Y-chromosome haplogroup caller. It is faster, easier to tune and more robust than other tools particularly for low-coverage or ancient DNA data. And it has lots of detailed output โ including plots!
www.biorxiv.org/content/10.1...
ybyra is a lightweight, flexible Y-chromosome haplogroup caller. It is faster, easier to tune and more robust than other tools particularly for low-coverage or ancient DNA data. And it has lots of detailed output โ including plots!
www.biorxiv.org/content/10.1...
Reposted by Xavier Roca-Rada, PhD
Please welcome the HAAM steering committee for the period 2025-2026 ๐. We are looking forward to the following year!
November 26, 2025 at 9:07 AM
Please welcome the HAAM steering committee for the period 2025-2026 ๐. We are looking forward to the following year!
So happy to see this work on the genetic history of the Central Southern Cone ๐๐งฌ Huge congrats to Javier Maravall and everyone involved!
www.nature.com/articles/s41...
New paper led by Javier Maravall on a time transect from ancient Argentina.
New paper led by Javier Maravall on a time transect from ancient Argentina.
Eight millennia of continuity of a previously unknown lineage in Argentina - Nature
A previously unsampled deep lineage in central Argentina was discovered that had distinctive genetic drift by 8,500โbp and persisted as the main Native American ancestry component in the reg...
www.nature.com
November 7, 2025 at 2:43 PM
So happy to see this work on the genetic history of the Central Southern Cone ๐๐งฌ Huge congrats to Javier Maravall and everyone involved!
๐จProud to have co-authored this paper with an incredible team! We propose practical reporting standards to improve transparency, reproducibility, and data stewardship in paleogenomics ๐งฌ๐ฆด
๐ฃ New from @dnatimetravel.bsky.social & co!
๐ Lessons learned: Recommendations for reproducible paleogenomic data analyses
๐ bit.ly/494k2ni
๐ Lessons learned: Recommendations for reproducible paleogenomic data analyses
๐ bit.ly/494k2ni
November 7, 2025 at 2:35 PM
๐จProud to have co-authored this paper with an incredible team! We propose practical reporting standards to improve transparency, reproducibility, and data stewardship in paleogenomics ๐งฌ๐ฆด
Reposted by Xavier Roca-Rada, PhD
๐จ The first HAAM elections are now open!
๐ฅ Meet the candidates: haam-community.github.io/election2025/
๐ณ๏ธ Cast your vote: forms.gle/6PKTRkqKn57J...
๐ Voting closes 10 Oct, 23:59 CET!
๐ฅ Meet the candidates: haam-community.github.io/election2025/
๐ณ๏ธ Cast your vote: forms.gle/6PKTRkqKn57J...
๐ Voting closes 10 Oct, 23:59 CET!
โ HAAM Election 2025 โ ยท HAAM Community
haam-community.github.io
October 1, 2025 at 4:02 PM
๐จ The first HAAM elections are now open!
๐ฅ Meet the candidates: haam-community.github.io/election2025/
๐ณ๏ธ Cast your vote: forms.gle/6PKTRkqKn57J...
๐ Voting closes 10 Oct, 23:59 CET!
๐ฅ Meet the candidates: haam-community.github.io/election2025/
๐ณ๏ธ Cast your vote: forms.gle/6PKTRkqKn57J...
๐ Voting closes 10 Oct, 23:59 CET!
๐ต๐นOur paper on Portugal's genetic history is now published in Genome Biology. We present Portugalโs largest ancient genome collection, with deeper analyses than our pre-print, revealing migrations, admixture & continuity shorturl.at/TcErC
@acadresearch.bsky.social @dnatimetravel.bsky.social
@acadresearch.bsky.social @dnatimetravel.bsky.social
The genetic history of Portugal over the past 5,000 years - Genome Biology
Background Recent ancient DNA studies uncovering large-scale demographic events in Iberia have presented very limited data for Portugal, a country located at the westernmost edge of continental Eurasi...
shorturl.at
September 3, 2025 at 4:08 PM
๐ต๐นOur paper on Portugal's genetic history is now published in Genome Biology. We present Portugalโs largest ancient genome collection, with deeper analyses than our pre-print, revealing migrations, admixture & continuity shorturl.at/TcErC
@acadresearch.bsky.social @dnatimetravel.bsky.social
@acadresearch.bsky.social @dnatimetravel.bsky.social
Reposted by Xavier Roca-Rada, PhD
What a week! ๐ Big thanks to @isba11.bsky.social for hosting an incredible ISBA conference โ so well organized and full of great science.
August 29, 2025 at 7:32 PM
What a week! ๐ Big thanks to @isba11.bsky.social for hosting an incredible ISBA conference โ so well organized and full of great science.
Reposted by Xavier Roca-Rada, PhD
La historia de cรณmo secuenciamos los mamtus ๐ฆฃ mรกs tropicales ๐๏ธ secuenciados al momento la pueden leer aquรญ ๐https://shorturl.at/KE6Ux. Redactadรณ por el gran @rpocisv.bsky.social. Muchas gracias Rodrigo por cubrir con tanto entusiasmo la nota sobre nuestro trabajo.
Mammoths in Mexico? Huge bone trove reveals giant beasts thrived in warmth, too
Fossils found while building airport contain first mammoth DNA from tropical location
shorturl.at
August 29, 2025 at 1:48 AM
La historia de cรณmo secuenciamos los mamtus ๐ฆฃ mรกs tropicales ๐๏ธ secuenciados al momento la pueden leer aquรญ ๐https://shorturl.at/KE6Ux. Redactadรณ por el gran @rpocisv.bsky.social. Muchas gracias Rodrigo por cubrir con tanto entusiasmo la nota sobre nuestro trabajo.
Reposted by Xavier Roca-Rada, PhD
๐ฃ #HAAMcommunity is looking for early career researchers working on human #aDNA & #popgen for the upcoming elections ๐๐๐
Feel free to reach out if you have any questions or want to chat about this. Apply here (ignore the deadline in the form): docs.google.com/forms/d/e/1F...
Feel free to reach out if you have any questions or want to chat about this. Apply here (ignore the deadline in the form): docs.google.com/forms/d/e/1F...
August 21, 2025 at 4:33 PM
๐ฃ #HAAMcommunity is looking for early career researchers working on human #aDNA & #popgen for the upcoming elections ๐๐๐
Feel free to reach out if you have any questions or want to chat about this. Apply here (ignore the deadline in the form): docs.google.com/forms/d/e/1F...
Feel free to reach out if you have any questions or want to chat about this. Apply here (ignore the deadline in the form): docs.google.com/forms/d/e/1F...
Reposted by Xavier Roca-Rada, PhD
๐ถ๐ฃ ONE WEEK until our #HAAMmeeting
๐ Register here until 23/08/25: forms.gle/6eR2GPkM2fuE...
Agenda:
๐งฌ HAAM updates
๐ผ Career panel w/ @lehtisaag.bsky.social, Monica Kelly, @eadaoinharney.bsky.social & @zhofmanova.bsky.social
โก Flash talks
Find updates here: haam-community.github.io/events/2025/...
๐ Register here until 23/08/25: forms.gle/6eR2GPkM2fuE...
Agenda:
๐งฌ HAAM updates
๐ผ Career panel w/ @lehtisaag.bsky.social, Monica Kelly, @eadaoinharney.bsky.social & @zhofmanova.bsky.social
โก Flash talks
Find updates here: haam-community.github.io/events/2025/...
August 18, 2025 at 9:46 AM
๐ถ๐ฃ ONE WEEK until our #HAAMmeeting
๐ Register here until 23/08/25: forms.gle/6eR2GPkM2fuE...
Agenda:
๐งฌ HAAM updates
๐ผ Career panel w/ @lehtisaag.bsky.social, Monica Kelly, @eadaoinharney.bsky.social & @zhofmanova.bsky.social
โก Flash talks
Find updates here: haam-community.github.io/events/2025/...
๐ Register here until 23/08/25: forms.gle/6eR2GPkM2fuE...
Agenda:
๐งฌ HAAM updates
๐ผ Career panel w/ @lehtisaag.bsky.social, Monica Kelly, @eadaoinharney.bsky.social & @zhofmanova.bsky.social
โก Flash talks
Find updates here: haam-community.github.io/events/2025/...
Reposted by Xavier Roca-Rada, PhD
Submit your flash talks! Youโre still on time ๐๐ฝโโ๏ธ๐งฌ
Weโre excited to share more about the 1st Annual HAAM Meeting โ a hybrid pre-ISBA event!
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
July 9, 2025 at 9:12 PM
Submit your flash talks! Youโre still on time ๐๐ฝโโ๏ธ๐งฌ
๐จ New paper!
๐งฌ We explore ancestry shifts, kinship ties & Mediterranean links at Mas dโen Boixos (Catalonia), from the Neolithic to the Iron Age.
๐จ๐ปโ๐ฌA long journey since my masterโs! Huge thanks to Cristina, Assumpciรณ & @dnatimetravel.bsky.social! @acadresearch.bsky.social
shorturl.at/B8TlB
๐งฌ We explore ancestry shifts, kinship ties & Mediterranean links at Mas dโen Boixos (Catalonia), from the Neolithic to the Iron Age.
๐จ๐ปโ๐ฌA long journey since my masterโs! Huge thanks to Cristina, Assumpciรณ & @dnatimetravel.bsky.social! @acadresearch.bsky.social
shorturl.at/B8TlB
Genetic transitions in the Neolithic and Bronze Age at Mas dโen Boixos (Catalonia, Spain)
Human genetics; Biological sciences; Paleobiology
shorturl.at
July 8, 2025 at 3:02 PM
๐จ New paper!
๐งฌ We explore ancestry shifts, kinship ties & Mediterranean links at Mas dโen Boixos (Catalonia), from the Neolithic to the Iron Age.
๐จ๐ปโ๐ฌA long journey since my masterโs! Huge thanks to Cristina, Assumpciรณ & @dnatimetravel.bsky.social! @acadresearch.bsky.social
shorturl.at/B8TlB
๐งฌ We explore ancestry shifts, kinship ties & Mediterranean links at Mas dโen Boixos (Catalonia), from the Neolithic to the Iron Age.
๐จ๐ปโ๐ฌA long journey since my masterโs! Huge thanks to Cristina, Assumpciรณ & @dnatimetravel.bsky.social! @acadresearch.bsky.social
shorturl.at/B8TlB
Thank you, Bastien ๐ Grateful for your mentorship and trust from the start. Itโs always a pleasure working with you and I'm proud of what we built together as a team
July 4, 2025 at 1:33 AM
Thank you, Bastien ๐ Grateful for your mentorship and trust from the start. Itโs always a pleasure working with you and I'm proud of what we built together as a team
Excited to share our new paper! We benchmarked the Twist Ancient DNA kit for in-solution enrichment. Itโs cost-effective, robust, and shows no allelic bias, even when pooling libraries!
@acadresearch.bsky.social @dnatimetravel.bsky.social @twistbioscience.com
doi.org/10.1186/s130...
@acadresearch.bsky.social @dnatimetravel.bsky.social @twistbioscience.com
doi.org/10.1186/s130...
Optimized in-solution enrichment of over a million ancient human SNPs - Genome Biology
Background In-solution hybridization enrichment of genetic markers is a method of choice in paleogenomic studies, where the DNA of interest is generally heavily fragmented and contaminated with enviro...
doi.org
July 3, 2025 at 9:02 PM
Excited to share our new paper! We benchmarked the Twist Ancient DNA kit for in-solution enrichment. Itโs cost-effective, robust, and shows no allelic bias, even when pooling libraries!
@acadresearch.bsky.social @dnatimetravel.bsky.social @twistbioscience.com
doi.org/10.1186/s130...
@acadresearch.bsky.social @dnatimetravel.bsky.social @twistbioscience.com
doi.org/10.1186/s130...
Reposted by Xavier Roca-Rada, PhD
Weโre excited to share more about the 1st Annual HAAM Meeting โ a hybrid pre-ISBA event!
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
June 27, 2025 at 8:00 AM
Weโre excited to share more about the 1st Annual HAAM Meeting โ a hybrid pre-ISBA event!
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
๐ Aug 26 | ๐๏ธ Turin & ๐ป online
๐งฌ HAAM updates
๐ผ Career panel w/ Lehti Saag, Monica Kelly, รadaoin Harney & Zuzana Hofmanovรก
โก Flash talks โ submit your abstract by July 11 (extended deadlineโผ๏ธ)
๐ shorturl.at/8LZsr
Reposted by Xavier Roca-Rada, PhD
๐ฌ Uploading or finding ancient DNA data a headache? Help fix it!
Join our Standards in Human ancient DNA metadata workshop ๐งฌ
๐๏ธ June 19, 2025
๐ 13:00โ16:00 CET
๐ป Online | ๐ฐ Free
๐ฌ Feedback = co-authorship possible!
๐ Register: shorturl.at/D3j6i
Join our Standards in Human ancient DNA metadata workshop ๐งฌ
๐๏ธ June 19, 2025
๐ 13:00โ16:00 CET
๐ป Online | ๐ฐ Free
๐ฌ Feedback = co-authorship possible!
๐ Register: shorturl.at/D3j6i
June 3, 2025 at 5:06 PM
๐ฌ Uploading or finding ancient DNA data a headache? Help fix it!
Join our Standards in Human ancient DNA metadata workshop ๐งฌ
๐๏ธ June 19, 2025
๐ 13:00โ16:00 CET
๐ป Online | ๐ฐ Free
๐ฌ Feedback = co-authorship possible!
๐ Register: shorturl.at/D3j6i
Join our Standards in Human ancient DNA metadata workshop ๐งฌ
๐๏ธ June 19, 2025
๐ 13:00โ16:00 CET
๐ป Online | ๐ฐ Free
๐ฌ Feedback = co-authorship possible!
๐ Register: shorturl.at/D3j6i
Reposted by Xavier Roca-Rada, PhD
๐จ Donโt miss the 1st HAAM-radio symposium: "Ethics in Human DNA Research"
๐ May 29 (next week!)
๐ LA (7am) l Berlin (4pm) | Singapore (10pm)
๐๏ธ With @paleogenomics.bsky.social @jenniferraff.bsky.social @marisolespitia.bsky.social & Tomรกs Gozรกlez Zarzar
๐ Register by May 28
๐ shorturl.at/1VScZ
๐ May 29 (next week!)
๐ LA (7am) l Berlin (4pm) | Singapore (10pm)
๐๏ธ With @paleogenomics.bsky.social @jenniferraff.bsky.social @marisolespitia.bsky.social & Tomรกs Gozรกlez Zarzar
๐ Register by May 28
๐ shorturl.at/1VScZ
May 19, 2025 at 5:55 PM
๐จ Donโt miss the 1st HAAM-radio symposium: "Ethics in Human DNA Research"
๐ May 29 (next week!)
๐ LA (7am) l Berlin (4pm) | Singapore (10pm)
๐๏ธ With @paleogenomics.bsky.social @jenniferraff.bsky.social @marisolespitia.bsky.social & Tomรกs Gozรกlez Zarzar
๐ Register by May 28
๐ shorturl.at/1VScZ
๐ May 29 (next week!)
๐ LA (7am) l Berlin (4pm) | Singapore (10pm)
๐๏ธ With @paleogenomics.bsky.social @jenniferraff.bsky.social @marisolespitia.bsky.social & Tomรกs Gozรกlez Zarzar
๐ Register by May 28
๐ shorturl.at/1VScZ
Reposted by Xavier Roca-Rada, PhD
๐งฌ The First Annual HAAM Meeting is coming on August 26, 2025 in Turin๐ฎ๐น (and online)!
โจ Flash talks, career panel & community updates.
๐ Submit your abstract for a flash talk by June 15
๐ข We're looking for volunteers to join the organizing team
#HAAM #ISBA2025 @isbarchaeology.bsky.social
โจ Flash talks, career panel & community updates.
๐ Submit your abstract for a flash talk by June 15
๐ข We're looking for volunteers to join the organizing team
#HAAM #ISBA2025 @isbarchaeology.bsky.social
April 11, 2025 at 6:21 PM
๐งฌ The First Annual HAAM Meeting is coming on August 26, 2025 in Turin๐ฎ๐น (and online)!
โจ Flash talks, career panel & community updates.
๐ Submit your abstract for a flash talk by June 15
๐ข We're looking for volunteers to join the organizing team
#HAAM #ISBA2025 @isbarchaeology.bsky.social
โจ Flash talks, career panel & community updates.
๐ Submit your abstract for a flash talk by June 15
๐ข We're looking for volunteers to join the organizing team
#HAAM #ISBA2025 @isbarchaeology.bsky.social
Reposted by Xavier Roca-Rada, PhD
๐ถ๐ฃ Apply here for our summer school 2025: haam-community.github.io/haam-summer-...
๐ Application deadline: 17th of April
#aDNA #HAAMsummerschool
๐ Application deadline: 17th of April
#aDNA #HAAMsummerschool
March 17, 2025 at 3:56 PM
๐ถ๐ฃ Apply here for our summer school 2025: haam-community.github.io/haam-summer-...
๐ Application deadline: 17th of April
#aDNA #HAAMsummerschool
๐ Application deadline: 17th of April
#aDNA #HAAMsummerschool