Ancient migration transformed Spain’s DNA

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A migration from Central Europe transformed the genetic make-up of people in Spain during the Bronze Age, a study reveals.


DNA evidence shows the migrants streamed over the Pyrenees, replacing existing male lineages across the region within a space of 400 years.


It remains unclear whether violence played a role or whether a male-centric social structure was more important.


The result comes from the most extensive study of its kind.


Researchers reconstructed the population history of Iberia (modern Spain, Portugal, Gibraltar and Andorra) over 8,000 years – the biggest slice of time tackled by a single ancient DNA study. The region has been a crossroads for different cultures over time.


Their study is published in Science journal.


They extracted and analysed DNA from 403 Iberians who lived between 6,000 BC and AD 1,600.


The Bronze Age migrants traced some of their ancestry to Neolithic (Stone Age) farmers found throughout Europe – including Spain – while the rest of their genetic make-up was like that of people living at the time on the Russian steppe.


This steppe ancestry was introduced to Europe by nomadic herders who migrated west from Asia and the eastern fringes of Europe.


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