Study reveals isolation, endogamy and pathogens in early medieval Spanish community

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Study reveals isolation, endogamy and pathogens in early medieval Spanish community
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An archaeogenetic study sheds new light on the isolated medieval community Las Gobas in northern Spain. Besides isolation and endogamy, the researchers have also identified the variola virus which can offer a new explanation on how smallpox entered Iberia.

Researchers from Sweden and Spain have conducted a comprehensive archaeogenetic study on a community that lived on the border between the northern Christian kingdoms and Al-Andalus during the early Medieval period. This dynamic era, especially in the Iberian Peninsula, was marked by religious competition, power struggles, and significant human mobility -- factors that shaped the foundation of modern Europe.

"Our findings indicate that this community stayed relatively isolated for at least five centuries," said Rodríguez Varela. Although Las Gobas is located just north of regions under Islamic rule,"we found relatively low levels of North African and Middle Eastern ancestry compared to other medieval individuals from the Iberian Peninsula, and we did not observe a significant increase in these ancestries after the Islamic conquest of Iberia," he concluded.

Anders Götherström, the senior author of the study and also based at CPG, emphasized the exhaustive nature of their research:"It is amazing how much information we were able to gather on this group of people through our archaeogenetic investigation." He further explained,"An endogamous group, familiar with violence, appears to have established itself in Las Gobas during the 6th or 7th century.

* The Centre for Palaeogenetics is a joint venture between Stockholm University and the Swedish Museum of Natural History. The overall objective of the centre is to bring researchers from different disciplines, such as biology, archaeology and geology, together into a state-of-the-art research environment dedicated to ancient DNA analyses.

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Study reveals isolation, endogamy and pathogens in early medieval Spanish communityStudy reveals isolation, endogamy and pathogens in early medieval Spanish communityAn archaeogenetic study sheds new light on the isolated medieval community Las Gobas in northern Spain. Besides isolation and endogamy, researchers have also identified the variola virus, which can offer a new explanation of how smallpox entered Iberia.
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