Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin
The eco-evolutionary history of penguins is characterised by shifting from temperate to cold environments. Breeding in Antarctica, the Emperor penguin appears as an extreme outcome of this process, with unique features related to insulation, heat production and energy management. However, whether th...
Published in: | Heredity |
---|---|
Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/11392/2502855 https://doi.org/10.1038/s41437-022-00564-8 https://www.nature.com/articles/s41437-022-00564-8 |
id |
ftunivferrarair:oai:sfera.unife.it:11392/2502855 |
---|---|
record_format |
openpolar |
spelling |
ftunivferrarair:oai:sfera.unife.it:11392/2502855 2024-04-14T08:03:22+00:00 Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin Federica Pirri Lino Ometto Silvia Fuselli Flávia A. N. Fernandes Lorena Ancona Nunzio Perta Daniele Di Marino Céline Le Bohec Lorenzo Zane Emiliano Trucchi Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A. N. Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano 2022 STAMPA https://hdl.handle.net/11392/2502855 https://doi.org/10.1038/s41437-022-00564-8 https://www.nature.com/articles/s41437-022-00564-8 eng eng info:eu-repo/semantics/altIdentifier/pmid/36207436 info:eu-repo/semantics/altIdentifier/wos/WOS:000864979200001 volume:129 issue:6 firstpage:317 lastpage:326 numberofpages:10 journal:HEREDITY https://hdl.handle.net/11392/2502855 doi:10.1038/s41437-022-00564-8 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85139516782 https://www.nature.com/articles/s41437-022-00564-8 info:eu-repo/semantics/openAccess selection penguin cold adaptation info:eu-repo/semantics/article 2022 ftunivferrarair https://doi.org/10.1038/s41437-022-00564-8 2024-03-21T17:37:46Z The eco-evolutionary history of penguins is characterised by shifting from temperate to cold environments. Breeding in Antarctica, the Emperor penguin appears as an extreme outcome of this process, with unique features related to insulation, heat production and energy management. However, whether this species actually diverged from a less cold-adapted ancestor, more ecologically similar to its sister species, the King penguin, is still an open question. As the Antarctic colonisation likely resulted in vast changes in selective pressure experienced by the Emperor penguin, the relative quantification of the genomic signatures of selection, unique to each sister species, could answer this question. Applying phylogeny-based selection tests on 7651 orthologous genes, we identified a more pervasive selection shift in the Emperor penguin than in the King penguin, supporting the hypothesis that its extreme cold adaptation is a derived state. Furthermore, among candidate genes under selection, four (TRPM8, LEPR, CRB1, and SFI1) were identified before in other cold-adapted homeotherms, like the woolly Mammoth, while other 161 genes can be assigned to biological functions relevant to cold adaptation identified in previous studies. Location and structural effects of TRPM8 substitutions in Emperor and King penguin lineages support their functional role with putative diverging effects on thermal adaptation. We conclude that extreme cold adaptation in the Emperor penguin largely involved unique genetic options which, however, affect metabolic and physiological traits common to other cold-adapted homeotherms. Article in Journal/Newspaper Antarc* Antarctic Antarctica Università degli Studi di Ferrara: CINECA IRIS Antarctic The Antarctic Heredity 129 6 317 326 |
institution |
Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
selection penguin cold adaptation |
spellingShingle |
selection penguin cold adaptation Federica Pirri Lino Ometto Silvia Fuselli Flávia A. N. Fernandes Lorena Ancona Nunzio Perta Daniele Di Marino Céline Le Bohec Lorenzo Zane Emiliano Trucchi Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
topic_facet |
selection penguin cold adaptation |
description |
The eco-evolutionary history of penguins is characterised by shifting from temperate to cold environments. Breeding in Antarctica, the Emperor penguin appears as an extreme outcome of this process, with unique features related to insulation, heat production and energy management. However, whether this species actually diverged from a less cold-adapted ancestor, more ecologically similar to its sister species, the King penguin, is still an open question. As the Antarctic colonisation likely resulted in vast changes in selective pressure experienced by the Emperor penguin, the relative quantification of the genomic signatures of selection, unique to each sister species, could answer this question. Applying phylogeny-based selection tests on 7651 orthologous genes, we identified a more pervasive selection shift in the Emperor penguin than in the King penguin, supporting the hypothesis that its extreme cold adaptation is a derived state. Furthermore, among candidate genes under selection, four (TRPM8, LEPR, CRB1, and SFI1) were identified before in other cold-adapted homeotherms, like the woolly Mammoth, while other 161 genes can be assigned to biological functions relevant to cold adaptation identified in previous studies. Location and structural effects of TRPM8 substitutions in Emperor and King penguin lineages support their functional role with putative diverging effects on thermal adaptation. We conclude that extreme cold adaptation in the Emperor penguin largely involved unique genetic options which, however, affect metabolic and physiological traits common to other cold-adapted homeotherms. |
author2 |
Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A. N. Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano |
format |
Article in Journal/Newspaper |
author |
Federica Pirri Lino Ometto Silvia Fuselli Flávia A. N. Fernandes Lorena Ancona Nunzio Perta Daniele Di Marino Céline Le Bohec Lorenzo Zane Emiliano Trucchi |
author_facet |
Federica Pirri Lino Ometto Silvia Fuselli Flávia A. N. Fernandes Lorena Ancona Nunzio Perta Daniele Di Marino Céline Le Bohec Lorenzo Zane Emiliano Trucchi |
author_sort |
Federica Pirri |
title |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
title_short |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
title_full |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
title_fullStr |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
title_full_unstemmed |
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
title_sort |
selection-driven adaptation to the extreme antarctic environment in the emperor penguin |
publishDate |
2022 |
url |
https://hdl.handle.net/11392/2502855 https://doi.org/10.1038/s41437-022-00564-8 https://www.nature.com/articles/s41437-022-00564-8 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/36207436 info:eu-repo/semantics/altIdentifier/wos/WOS:000864979200001 volume:129 issue:6 firstpage:317 lastpage:326 numberofpages:10 journal:HEREDITY https://hdl.handle.net/11392/2502855 doi:10.1038/s41437-022-00564-8 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85139516782 https://www.nature.com/articles/s41437-022-00564-8 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41437-022-00564-8 |
container_title |
Heredity |
container_volume |
129 |
container_issue |
6 |
container_start_page |
317 |
op_container_end_page |
326 |
_version_ |
1796299628118802432 |