Patterns of genetic differentiation and the footprints of historical migrations in the Iberian Peninsula
| Autor: | Clara Ruiz-Ponte, Simon Myers, Angel Carracedo, Ceres Fernandez-Rozadilla, Clare Bycroft, Iéns Quintela-García, Peter Donnelly |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Demographic history
Human Migration Science Population Genomics Article 03 medical and health sciences 0302 clinical medicine Peninsula Cluster Analysis Humans 10. No inequality education lcsh:Science Genotyping Phylogeny 030304 developmental biology Genetic association 0303 health sciences education.field_of_study geography.geographical_feature_category Geography humanities Genetic differentiation Genetics Population Evolutionary biology Spain Period (geology) lcsh:Q 030217 neurology & neurosurgery |
| Zdroj: | Nature Communications, Vol 10, Iss 1, Pp 1-14 (2019) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | 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. The Iberian Peninsula has a complex history. Here, the authors analyse the genetic structure of the modern Iberian population at fine scale, revealing historical population movements associated with the time of Muslim rule. |
| Databáze: | OpenAIRE |
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