The impact of agricultural emergence on the genetic history of African rainforest hunter-gatherers and agriculturalists
Etienne Patin
(1)
,
Katherine Siddle
(1)
,
Guillaume Laval
(1)
,
Hélène Quach
(1)
,
Christine Harmant
(1)
,
Noémie Becker
(2)
,
Alain Froment
(3)
,
Béatrice Regnault
(4)
,
Laure Lemee
(4)
,
Simon Gravel
(5)
,
Jean-Marie Hombert
(6)
,
Lolke van Der Veen
(6)
,
Nathaniel Dominy
(7)
,
George Perry
(8)
,
Luis B. Barreiro
(9)
,
Paul Verdu
(2)
,
Evelyne Heyer
(2)
,
Lluis Quintana-Murci
(1)
1
Génétique Evolutive Humaine - Human Evolutionary Genetics
2 EAE - Eco-Anthropologie et Ethnobiologie
3 IRD - Institut de Recherche pour le Développement
4 Génotypage des Eucaryotes (Plate-Forme)
5 McGill University = Université McGill [Montréal, Canada]
6 DDL - Dynamique Du Langage
7 Dartmouth College [Hanover]
8 Penn State - Pennsylvania State University
9 CHU Sainte Justine [Montréal]
2 EAE - Eco-Anthropologie et Ethnobiologie
3 IRD - Institut de Recherche pour le Développement
4 Génotypage des Eucaryotes (Plate-Forme)
5 McGill University = Université McGill [Montréal, Canada]
6 DDL - Dynamique Du Langage
7 Dartmouth College [Hanover]
8 Penn State - Pennsylvania State University
9 CHU Sainte Justine [Montréal]
Etienne Patin
- Fonction : Auteur
- PersonId : 179015
- IdHAL : etienne-patin
- ORCID : 0000-0002-9911-4459
- IdRef : 132614553
Guillaume Laval
- Fonction : Auteur
- PersonId : 735276
- IdHAL : guillaume-laval
- ORCID : 0000-0003-0845-1909
Hélène Quach
- Fonction : Auteur
- PersonId : 914641
Christine Harmant
- Fonction : Auteur
- PersonId : 748763
- IdHAL : christine-harmant
- ORCID : 0000-0003-2949-772X
Lolke van Der Veen
- Fonction : Auteur
- PersonId : 1257132
- IdHAL : lolke-van-der-veen
- ORCID : 0009-0003-3128-064X
Paul Verdu
- Fonction : Auteur
- PersonId : 175682
- IdHAL : paul-verdu
- ORCID : 0000-0001-6828-268X
- IdRef : 139926372
Evelyne Heyer
- Fonction : Auteur
- PersonId : 177102
- IdHAL : evelyne-heyer
- ORCID : 0000-0002-0266-3196
- IdRef : 070848289
Lluis Quintana-Murci
- Fonction : Auteur
- PersonId : 754080
- IdHAL : lluis-quintana-murci
- ORCID : 0000-0003-2429-6320
- IdRef : 127109897
Résumé
The emergence of agriculture in West-Central Africa approximately 5,000 years ago, profoundly modified the cultural landscape and mode of subsistence of most sub-Saharan populations. How this major innovation has had an impact on the genetic history of rainforest hunter-gatherers-historically referred to as 'pygmies'-and agriculturalists, however, remains poorly understood. Here we report genome-wide SNP data from these populations located west-to-east of the equatorial rainforest. We find that hunter-gathering populations present up to 50% of farmer genomic ancestry, and that substantial admixture began only within the last 1,000 years. Furthermore, we show that the historical population sizes characterizing these communities already differed before the introduction of agriculture. Our results suggest that the first socioeconomic interactions between rainforest hunter-gath-erers and farmers introduced by the spread of farming were not accompanied by immediate, extensive genetic exchanges and occurred on a backdrop of two groups already differentiated by their specialization in two ecotopes with differing carrying capacities.
Domaines
LinguistiqueFormat du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
The impact of agricultural emergence on the genetic history of African rainforest hunter-gatherers and agriculturalists
|
Résumé |
en
The emergence of agriculture in West-Central Africa approximately 5,000 years ago, profoundly modified the cultural landscape and mode of subsistence of most sub-Saharan populations. How this major innovation has had an impact on the genetic history of rainforest hunter-gatherers-historically referred to as 'pygmies'-and agriculturalists, however, remains poorly understood. Here we report genome-wide SNP data from these populations located west-to-east of the equatorial rainforest. We find that hunter-gathering populations present up to 50% of farmer genomic ancestry, and that substantial admixture began only within the last 1,000 years. Furthermore, we show that the historical population sizes characterizing these communities already differed before the introduction of agriculture. Our results suggest that the first socioeconomic interactions between rainforest hunter-gath-erers and farmers introduced by the spread of farming were not accompanied by immediate, extensive genetic exchanges and occurred on a backdrop of two groups already differentiated by their specialization in two ecotopes with differing carrying capacities.
|
Auteur(s) |
Etienne Patin
1
, Katherine Siddle
1
, Guillaume Laval
1
, Hélène Quach
1
, Christine Harmant
1
, Noémie Becker
2
, Alain Froment
3
, Béatrice Regnault
4
, Laure Lemee
4
, Simon Gravel
5
, Jean-Marie Hombert
6
, Lolke van Der Veen
6
, Nathaniel Dominy
7
, George Perry
8
, Luis B. Barreiro
9
, Paul Verdu
2
, Evelyne Heyer
2
, Lluis Quintana-Murci
1
1
Génétique Evolutive Humaine - Human Evolutionary Genetics
( 31970 )
- Département Génomes et Génétique - 25-28 rue du Docteur Roux, F-75724 Paris Cedex 15
- France
2
EAE -
Eco-Anthropologie et Ethnobiologie
( 117740 )
- Dpt Hommes Natures Sociétés, 57 rue Cuvier 75231 Paris Cedex 05 -
Musée de l'Homme, place du Trocadéro 75016 Paris
- France
3
IRD -
Institut de Recherche pour le Développement
( 67872 )
- Siège
Le Sextant
44, bd de Dunkerque
CS 90009
13572 Marseille cedex 02
- France
4
Génotypage des Eucaryotes (Plate-Forme)
( 147739 )
- 25-28, rue du Docteur Roux 75724 Paris Cedex 15
- France
5
McGill University = Université McGill [Montréal, Canada]
( 134741 )
- 845, rue Sherbrooke O. Montréal (Québec) Canada H3A 0G4
- Canada
6
DDL -
Dynamique Du Langage
( 740 )
- INSTITUT DES SCIENCES DE L'HOMME 14 Avenue Berthelot 69363 LYON CEDEX 07
- France
7
Dartmouth College [Hanover]
( 19043 )
- Hanover, NH 03755 USA
- États-Unis
8
Penn State -
Pennsylvania State University
( 452398 )
- 201 Old Main, University Park, Pennsylvania 16802
- États-Unis
9
CHU Sainte Justine [Montréal]
( 323994 )
- 3175, Chemin de la Côte-Sainte-Catherine, Montréal H3T 1C5, Québec
- Canada
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Date de publication |
2014
|
Audience |
Internationale
|
Licence |
Paternité
|
Langue du document |
Anglais
|
Nom de la revue |
|
Volume |
5
|
Page/Identifiant |
3163
|
Domaine(s) |
|
Projet(s) ANR |
|
Mots-clés |
en
Linguistics
|
DOI | 10.1038/ncomms4163 |
Pubmed Id | 24495941 |
Origine :
Publication financée par une institution
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