Whole genome sequencing reveals a complex introgression history and the basis of adaptation to subarctic climate in wild sheep.
Ovis nivicola
cold adaptation
hybridization
whole genome sequencing
Journal
Molecular ecology
ISSN: 1365-294X
Titre abrégé: Mol Ecol
Pays: England
ID NLM: 9214478
Informations de publication
Date de publication:
12 2021
12 2021
Historique:
revised:
01
09
2021
received:
17
05
2021
accepted:
07
09
2021
pubmed:
18
9
2021
medline:
29
1
2022
entrez:
17
9
2021
Statut:
ppublish
Résumé
To predict species responses to anthropogenic disturbances and climate change, it is reasonable to use species with high sensitivity to such factors. Snow sheep (Ovis nivicola) could represent a good candidate for this; as the only large herbivore species adapted to the cold and alpine habitats of northeastern Siberia, it plays a crucial role in its ecosystem. Despite having an extensive geographical distribution among all ovine species, it is one of the least studied. In this study, we sequenced and analysed six genomes of snow sheep in combination with all other wild sheep species to infer key aspects of their evolutionary history and unveil the genetic basis of their adaptation to subarctic environments. Despite their large census population size, snow sheep genomes showed remarkably low heterozygosity, which could reflect the effect of isolation and historical bottlenecks that we inferred using the pairwise sequential Markovian coalescent and runs of homozygosity. F
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
6701-6717Subventions
Organisme : Ministry of Science and Higher Education of the Russian Federation
ID : 0445-2019-0024
Organisme : Russian Science Foundation within Project No.
ID : 21-66-00007
Informations de copyright
© 2021 The Authors. Molecular Ecology published by John Wiley & Sons Ltd.
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