Genomic insights into the secondary aquatic transition of penguins.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
19 07 2022
19 07 2022
Historique:
received:
06
10
2021
accepted:
17
06
2022
entrez:
19
7
2022
pubmed:
20
7
2022
medline:
22
7
2022
Statut:
epublish
Résumé
Penguins lost the ability to fly more than 60 million years ago, subsequently evolving a hyper-specialized marine body plan. Within the framework of a genome-scale, fossil-inclusive phylogeny, we identify key geological events that shaped penguin diversification and genomic signatures consistent with widespread refugia/recolonization during major climate oscillations. We further identify a suite of genes potentially underpinning adaptations related to thermoregulation, oxygenation, diving, vision, diet, immunity and body size, which might have facilitated their remarkable secondary transition to an aquatic ecology. Our analyses indicate that penguins and their sister group (Procellariiformes) have the lowest evolutionary rates yet detected in birds. Together, these findings help improve our understanding of how penguins have transitioned to the marine environment, successfully colonizing some of the most extreme environments on Earth.
Identifiants
pubmed: 35853876
doi: 10.1038/s41467-022-31508-9
pii: 10.1038/s41467-022-31508-9
pmc: PMC9296559
doi:
Banques de données
figshare
['10.6084/m9.figshare.c.5535243.v1']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3912Informations de copyright
© 2022. The Author(s).
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