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Ancient proteins provide evidence of dairy consumption in eastern Africa

Publié dansNature Communications, vol. 12, no. 632
Date de publication2021
Résumé

Consuming the milk of other species is a unique adaptation of Homo sapiens, with implications for health, birth spacing and evolution. Key questions nonetheless remain regarding the origins of dairying and its relationship to the genetically-determined ability to drink milk into adulthood through lactase persistence (LP). As a major centre of LP diversity, Africa is of significant interest to the evolution of dairying. Here we report proteomic evidence for milk consumption in ancient Africa. Using liquid chromatography tandem mass spectrometry (LCMS/MS) we identify dairy proteins in human dental calculus from northeastern Africa, directly demonstrating milk consumption at least six millennia ago. Our findings indicate that pastoralist groups were drinking milk as soon as herding spread into eastern Africa, at a time when the genetic adaptation for milk digestion was absent or rare. Our study links LP status in specific ancient individuals with direct evidence for their consumption of dairy products

Mots-clés
  • Archéologie
  • Préhistoire
  • Afrique
  • Soudan
  • Néolithique
  • Alimentation
Citation (format ISO)
BLEASDALE, Madeleine et al. Ancient proteins provide evidence of dairy consumption in eastern Africa. In: Nature Communications, 2021, vol. 12, n° 632. doi: 10.1038/s41467-020-20682-3
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Article (Published version)
Identifiants
ISSN du journal2041-1723
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Informations techniques

Création27.01.2021 22:17:00
Première validation27.01.2021 22:17:00
Heure de mise à jour15.03.2023 23:57:13
Changement de statut15.03.2023 23:57:10
Dernière indexation12.02.2024 12:01:06
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