Patterns of genetic differentiation and the footprints of historical migrations in the Iberian Peninsula.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
01 02 2019
01 02 2019
Historique:
received:
24
05
2018
accepted:
07
12
2018
entrez:
3
2
2019
pubmed:
3
2
2019
medline:
2
4
2019
Statut:
epublish
Résumé
The Iberian Peninsula is linguistically diverse and has a complex demographic history, including a centuries-long period of Muslim rule. Here, we study the fine-scale genetic structure of its population, and the genetic impacts of historical events, leveraging powerful, haplotype-based statistical methods to analyse 1413 individuals from across Spain. We detect extensive fine-scale population structure at extremely fine scales (below 10 Km) in some regions, including Galicia. We identify a major east-west axis of genetic differentiation, and evidence of historical north to south population movement. We find regionally varying fractions of north-west African ancestry (0-11%) in modern-day Iberians, related to an admixture event involving European-like and north-west African-like source populations. We date this event to 860-1120 CE, implying greater genetic impacts in the early half of Muslim rule in Iberia. Together, our results indicate clear genetic impacts of population movements associated with both the Muslim conquest and the subsequent Reconquista.
Identifiants
pubmed: 30710075
doi: 10.1038/s41467-018-08272-w
pii: 10.1038/s41467-018-08272-w
pmc: PMC6358624
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
551Subventions
Organisme : Wellcome Trust
Pays : United Kingdom
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