Archaeogenetic analysis of Neolithic sheep from Anatolia suggests a complex demographic history since domestication.
Commun Biol
; 4(1): 1279, 2021 11 12.
Article
de En
| MEDLINE
| ID: mdl-34773064
ABSTRACT
Sheep were among the first domesticated animals, but their demographic history is little understood. Here we analyzed nuclear polymorphism and mitochondrial data (mtDNA) from ancient central and west Anatolian sheep dating from Epipaleolithic to late Neolithic, comparatively with modern-day breeds and central Asian Neolithic/Bronze Age sheep (OBI). Analyzing ancient nuclear data, we found that Anatolian Neolithic sheep (ANS) are genetically closest to present-day European breeds relative to Asian breeds, a conclusion supported by mtDNA haplogroup frequencies. In contrast, OBI showed higher genetic affinity to present-day Asian breeds. These results suggest that the east-west genetic structure observed in present-day breeds had already emerged by 6000 BCE, hinting at multiple sheep domestication episodes or early wild introgression in southwest Asia. Furthermore, we found that ANS are genetically distinct from all modern breeds. Our results suggest that European and Anatolian domestic sheep gene pools have been strongly remolded since the Neolithic.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Polymorphisme génétique
/
ADN mitochondrial
/
Ovis aries
/
ADN ancien
/
Domestication
Limites:
Animals
Pays/Région comme sujet:
Asia
Langue:
En
Journal:
Commun Biol
Année:
2021
Type de document:
Article
Pays d'affiliation:
Turquie