Ancient proteins provide evidence of dairy consumption in eastern Africa.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
27 01 2021
27 01 2021
Historique:
received:
09
03
2020
accepted:
10
12
2020
entrez:
28
1
2021
pubmed:
29
1
2021
medline:
4
2
2021
Statut:
epublish
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 (LC-MS/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.
Identifiants
pubmed: 33504791
doi: 10.1038/s41467-020-20682-3
pii: 10.1038/s41467-020-20682-3
pmc: PMC7841170
doi:
Substances chimiques
Lactoglobulins
0
Milk Proteins
0
Collagen
9007-34-5
Lactase
EC 3.2.1.108
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
632Références
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