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A new study into the genetic makeup of over 1,400 individuals from across Spain has shown that the genetic patterns in modern individuals were shaped by population movements over the past 1,000 years. It also showed that in some regions, there are discernible patterns of genetic differences even between individuals living as close as 10km apart.
A team of researchers from the University of Oxford, and the Universidade de Santiago de Compostela, analysed DNA samples from over 1,400 people to generate the first fine-scale genetic map of Spain, and to understand the impacts of past migration events into and within Spain on Spanish people today.
Work - Nature - Communications - Differences - Direction
Their work, published in Nature Communications, identified stronger genetic differences in the east-west direction, and signatures of historical north to south population movements in Spain. Study lead author Clare Bycroft explains that these patterns reflect the unique history of Iberia: "Clustering of modern individuals, based purely on sharing of their DNA, identifies groups whose boundaries closely match the boundaries of distinct kingdoms, speaking different languages, present over 500 years ago."
By examining patterns of sharing of...
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