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: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SPRINGERNATURE
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/11577/3462208 https://doi.org/10.1038/s41437-022-00564-8 https://www.nature.com/articles/s41437-022-00564-8 |
id |
ftunivpadovairis:oai:www.research.unipd.it:11577/3462208 |
---|---|
record_format |
openpolar |
spelling |
ftunivpadovairis:oai:www.research.unipd.it:11577/3462208 2024-04-14T08:01:29+00:00 Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A N Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano 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/11577/3462208 https://doi.org/10.1038/s41437-022-00564-8 https://www.nature.com/articles/s41437-022-00564-8 eng eng SPRINGERNATURE info:eu-repo/semantics/altIdentifier/pmid/36207436 info:eu-repo/semantics/altIdentifier/wos/WOS:000864979200001 volume:00 firstpage:1 lastpage:10 numberofpages:10 journal:HEREDITY https://hdl.handle.net/11577/3462208 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/closedAccess Ecological genetics Evolutionary genetics info:eu-repo/semantics/article 2022 ftunivpadovairis https://doi.org/10.1038/s41437-022-00564-8 2024-03-21T18:42:11Z 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 divergent 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 Padua Research Archive (IRIS - Università degli Studi di Padova) Antarctic The Antarctic Heredity 129 6 317 326 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
Ecological genetics Evolutionary genetics |
spellingShingle |
Ecological genetics Evolutionary genetics Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A N Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin |
topic_facet |
Ecological genetics Evolutionary genetics |
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 divergent 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 |
Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A N Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano |
author_facet |
Pirri, Federica Ometto, Lino Fuselli, Silvia Fernandes, Flávia A N Ancona, Lorena Perta, Nunzio Di Marino, Daniele Le Bohec, Céline Zane, Lorenzo Trucchi, Emiliano |
author_sort |
Pirri, Federica |
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 |
publisher |
SPRINGERNATURE |
publishDate |
2022 |
url |
https://hdl.handle.net/11577/3462208 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:00 firstpage:1 lastpage:10 numberofpages:10 journal:HEREDITY https://hdl.handle.net/11577/3462208 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/closedAccess |
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_ |
1796309209992658944 |