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URL: http://www.ox.ac.uk/news/2019-08-14-ancient-pigs-endured-complete-genomic-turnover-after-they-arrived-europe
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Title: Ancient pigs endured a complete genomic turnover after they arrived in Europe | University of Oxford
Description: New research led by Oxford University and Queen Mary University of London has resolved a pig paradox.
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Texto: Ancient pigs endured a complete genomic turnover after they arrived in Europe | University of Oxford Skip to main content Home Home Admissions Undergraduate Graduate Continuing education Research Divisions Research impact Libraries Innovation and Partnership Support for researchers Research in conversation Public Engagement with Research News & Events Events Science Blog Arts Blog Oxford and Brexit News releases for journalists Filming in Oxford Find An Expert About Organisation Facts and figures Oxford people Oxford Access International Oxford Building Our Future Jobs 牛津大学 Search News & Events Events Regular events in the University Year Race and the Curriculum Women of Achievement Science Blog Arts Blog Oxford and Brexit Latest University updates University to pay settlement fees for all EU staff EU referendum and Brexit: Analysis News releases for journalists Filming in Oxford Find An Expert Ancient pigs endured a complete genomic turnover after they arrived in Europe. Image credit: Shutterstock Published 14 Aug 2019 Share This Tweet Share on Facebook Share on LinkedIn Share on Reddit Home News Ancient pigs endured a complete genomic turnover after they arrived in Europe Ancient pigs endured a complete genomic turnover after they arrived in Europe Research Science New research led by Oxford University and Queen Mary University of London has resolved a pig paradox. Archaeological evidence has shown that pigs were domesticated in the Near East and as such, modern pigs should resemble Near Eastern wild boar. They do not. Instead, the genetic signatures of modern European domestic pigs resemble European wild boar. Published in Proceedings of the National Academy of Science , the study shows how this has happened. Working with more than 100 collaborators, researchers from Oxford’s School of Archaeology sequenced DNA signatures from more than 2,000 ancient pigs including genomes from 63 archaeological pigs collected across the Near East and Europe over the last 10,000 years. The findings revealed that the first pigs to arrive into Europe alongside farmers 8,000 years ago had clear Near Eastern genetic ancestry. Over the course of the next 3,000 years, however, ancient domestic pigs hybridised with European wild boar to such an extent that they lost almost all their Near Eastern ancestry. Some low level of Near Eastern ancestry, however potentially remained in the genome of modern European domestic pigs, and this likely explains their characteristic black, and black and white spotted coat colours. Higher level of Near Eastern ancestry were also maintained in pig populations on Mediterranean islands maintained probably because these populations experienced comparatively less gene flow with European wild boar relative to pigs on the continent. Professor Greger Larson, Director of the Palaeogenomics & Bio-Archaeology Research Network (PalaeoBarn) at Oxford and senior author of the study, said: “Having access to ancient genomes over such a large space and time has allowed us to see the slow-motion replacement of the entire genome of domestic pigs. This suggests that pig management in Europe over millennia was extensive, and that though swineherders maintained selection for some coat colours, domestic pigs interacted with wild boar frequently enough that they lost the ancestral signature of the wild boar from which they were derived.” Dr. Laurent Frantz, lead author of the study at Queen Mary University of London, said: “We are all taught that the big change was the initial process of domestication, but our data suggests that almost none of the human-selection over the first 2,500 years of pig domestication has been important in the development of modern European commercial pigs.” Now that the team have pieced together a timeline of the genomic history of pigs in western Eurasia, the next steps in the research will be to precisely identify, in the genome of modern European domestic pigs, the few genes that retained their original Near Eastern ancestry. This will allow us to assess whether the artificial selection applied by early farmers in the Fertile Crescent, over 10,000 years ago, left any further legacy in modern pigs beyond coat colour. Latest 'The Nemo effect' is untrue: animal movies promote awareness, not harm 14 Aug 2019 Ancient pigs endured a complete genomic turnover after they arrived in Europe 14 Aug 2019 Oxford spinout company launched to diagnose Alzheimer’s Disease from MRI scans 9 Aug 2019 Oxford's first postgraduate access programme draws to a close 8 Aug 2019 Smartphone test predicts how symptoms develop in Parkinson’s 7 Aug 2019 Further information Palaeo-Barn School of Anthropology and Museum Ethnography   All news Share This Tweet Share on Facebook Share on LinkedIn Share on Reddit Connect with us iTunes Youtube Facebook Twitter LinkedIn Weibo Instagram Medium The Conversation Information About Oxford University Strategic plan Oxford's research Fees and funding Libraries Museums and collections Open days Oxford glossary Statement on Modern Slavery Data privacy / GDPR Sport at Oxford Conferences at Oxford 牛津大学 Information For Prospective undergraduates Prospective graduate students Prospective Continuing Education students Prospective online/distance learning students Current Oxford students Current Oxford staff Oxford residents/Community Visitors/Tourists Media Alumni Teachers Parliamentarians Businesses/Partnerships Quick Links Contact search Jobs and vacancies Term dates Map Nexus365 email Giving to Oxford Oxford University Images © University of Oxford 2019 Contact us About this site Legal Privacy policy Cookie statement


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