Genome-wide diversity and global migration patterns in dromedaries follow ancient caravan routes.
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
16 07 2020
16 07 2020
Historique:
received:
17
12
2019
accepted:
19
06
2020
entrez:
18
7
2020
pubmed:
18
7
2020
medline:
22
6
2021
Statut:
epublish
Résumé
Dromedaries have been essential for the prosperity of civilizations in arid environments and the dispersal of humans, goods and cultures along ancient, cross-continental trading routes. With increasing desertification their importance as livestock species is rising rapidly, but little is known about their genome-wide diversity and demographic history. As previous studies using few nuclear markers found weak phylogeographic structure, here we detected fine-scale population differentiation in dromedaries across Asia and Africa by adopting a genome-wide approach. Global patterns of effective migration rates revealed pathways of dispersal after domestication, following historic caravan routes like the Silk and Incense Roads. Our results show that a Pleistocene bottleneck and Medieval expansions during the rise of the Ottoman empire have shaped genome-wide diversity in modern dromedaries. By understanding subtle population structure we recognize the value of small, locally adapted populations and appeal for securing genomic diversity for a sustainable utilization of this key desert species.
Identifiants
pubmed: 32678279
doi: 10.1038/s42003-020-1098-7
pii: 10.1038/s42003-020-1098-7
pmc: PMC7366924
doi:
Substances chimiques
Genetic Markers
0
DNA
9007-49-2
Banques de données
Dryad
['10.5061/dryad.kh189322q']
Types de publication
Historical Article
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
387Subventions
Organisme : Austrian Science Fund FWF
ID : P 29623
Pays : Austria
Organisme : Austrian Science Fund FWF
ID : P24607-B25
Pays : Austria
Organisme : Austrian Science Fund FWF
ID : P29623-B25
Pays : Austria
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