Genome-wide analyses reveal drivers of penguin diversification
Penguins are the only extant family of flightless diving birds. They currently comprise at least 18 species, distributed from polar to tropical environments in the Southern Hemisphere. The history of their diversification and adaptation to these diverse environments remains controversial. We used 22...
Published in: | Proceedings of the National Academy of Sciences |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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National Academy of Sciences (U.S.)
2020
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Online Access: | http://hdl.handle.net/10261/237683 https://doi.org/10.1073/pnas.2006659117 https://doi.org/10.13039/501100002848 https://doi.org/10.13039/501100003593 https://doi.org/10.13039/501100004796 |
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ftcsic:oai:digital.csic.es:10261/237683 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Penguin Antarctica Genome Ancestral niche Ancestral distribution |
spellingShingle |
Penguin Antarctica Genome Ancestral niche Ancestral distribution Vianna, Juliana A. Fernandes, Flávia A.N. Frugone, María José Figueiró, Henrique V. Pertierra, Luis R. Noll, Daly Bi, Ke Wang-Claypool, Cynthia Y. Lowther, Andrew Parker, Patricia Le Bohec, Céline Bonadonna, Francesco Wienecke, Bárbara Pistorius, Pierre Steinfurth, Antje Burridge, Christopher P. Dantas, Gisele P.M. Simison, W. Brian Henderson, Jim Eizirik, Eduardo Nery, Mariana F. Bowie, Rauri C.K. Genome-wide analyses reveal drivers of penguin diversification |
topic_facet |
Penguin Antarctica Genome Ancestral niche Ancestral distribution |
description |
Penguins are the only extant family of flightless diving birds. They currently comprise at least 18 species, distributed from polar to tropical environments in the Southern Hemisphere. The history of their diversification and adaptation to these diverse environments remains controversial. We used 22 new genomes from 18 penguin species to reconstruct the order, timing, and location of their diversification, to track changes in their thermal niches through time, and to test for associated adaptation across the genome. Our results indicate that the penguin crown-group originated during the Miocene in New Zealand and Australia, not in Antarctica as previously thought, and that Aptenodytes is the sister group to all other extant penguin species. We show that lineage diversification in penguins was largely driven by changing climatic conditions and by the opening of the Drake Passage and associated intensification of the Antarctic Circumpolar Current (ACC). Penguin species have introgressed throughout much of their evolutionary history, following the direction of the ACC, which might have promoted dispersal and admixture. Changes in thermal niches were accompanied by adaptations in genes that govern thermoregulation and oxygen metabolism. Estimates of ancestral effective population sizes (Ne ) confirm that penguins are sensitive to climate shifts, as represented by three different demographic trajectories in deeper time, the most common (in 11 of 18 penguin species) being an increased Ne between 40 and 70 kya, followed by a precipitous decline during the Last Glacial Maximum. The latter effect is most likely a consequence of the overall decline in marine productivity following the last glaciation. Financial support for this work was provided by Instituto Antártico Chileno (INACH RT_12–14), Fondecyt Project 1150517, Genomics Antarctic Biodiversity/Programa de Investigación Asociativa/Comisión Nacional de Investigación Científica y Tecnológica (GAB PIA CONICYT ACT172065), NSF DEB-1441652, French Polar Institute ... |
author2 |
Instituto Antártico Chileno Comisión Nacional de Investigación Científica y Tecnológica (Chile) Institut Polaire Français California Academy of Sciences Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil) Instituto Nacional de Ciência e Tecnologia (Brasil) Instituto Nacional de Ciência e Tecnologia em Ecologia Evolução Conservação da Biodiversida (Brasil) |
format |
Article in Journal/Newspaper |
author |
Vianna, Juliana A. Fernandes, Flávia A.N. Frugone, María José Figueiró, Henrique V. Pertierra, Luis R. Noll, Daly Bi, Ke Wang-Claypool, Cynthia Y. Lowther, Andrew Parker, Patricia Le Bohec, Céline Bonadonna, Francesco Wienecke, Bárbara Pistorius, Pierre Steinfurth, Antje Burridge, Christopher P. Dantas, Gisele P.M. Simison, W. Brian Henderson, Jim Eizirik, Eduardo Nery, Mariana F. Bowie, Rauri C.K. |
author_facet |
Vianna, Juliana A. Fernandes, Flávia A.N. Frugone, María José Figueiró, Henrique V. Pertierra, Luis R. Noll, Daly Bi, Ke Wang-Claypool, Cynthia Y. Lowther, Andrew Parker, Patricia Le Bohec, Céline Bonadonna, Francesco Wienecke, Bárbara Pistorius, Pierre Steinfurth, Antje Burridge, Christopher P. Dantas, Gisele P.M. Simison, W. Brian Henderson, Jim Eizirik, Eduardo Nery, Mariana F. Bowie, Rauri C.K. |
author_sort |
Vianna, Juliana A. |
title |
Genome-wide analyses reveal drivers of penguin diversification |
title_short |
Genome-wide analyses reveal drivers of penguin diversification |
title_full |
Genome-wide analyses reveal drivers of penguin diversification |
title_fullStr |
Genome-wide analyses reveal drivers of penguin diversification |
title_full_unstemmed |
Genome-wide analyses reveal drivers of penguin diversification |
title_sort |
genome-wide analyses reveal drivers of penguin diversification |
publisher |
National Academy of Sciences (U.S.) |
publishDate |
2020 |
url |
http://hdl.handle.net/10261/237683 https://doi.org/10.1073/pnas.2006659117 https://doi.org/10.13039/501100002848 https://doi.org/10.13039/501100003593 https://doi.org/10.13039/501100004796 |
long_lat |
ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(8.308,8.308,63.772,63.772) |
geographic |
Antarctic Drake Passage Inach Kya New Zealand The Antarctic |
geographic_facet |
Antarctic Drake Passage Inach Kya New Zealand The Antarctic |
genre |
Antarc* Antarctic Antarctica Drake Passage |
genre_facet |
Antarc* Antarctic Antarctica Drake Passage |
op_relation |
http://dx.doi.org/10.1073/pnas.2006659117 Sí doi:10.1073/pnas.2006659117 issn: 1091-6490 Proceedings of the National Academy of Sciences of the USA 117(36): 22303-22310 (2020) http://hdl.handle.net/10261/237683 http://dx.doi.org/10.13039/501100002848 http://dx.doi.org/10.13039/501100003593 http://dx.doi.org/10.13039/501100004796 |
op_rights |
none |
op_doi |
https://doi.org/10.1073/pnas.200665911710.13039/50110000284810.13039/50110000359310.13039/501100004796 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
117 |
container_issue |
36 |
container_start_page |
22303 |
op_container_end_page |
22310 |
_version_ |
1790605749317009408 |
spelling |
ftcsic:oai:digital.csic.es:10261/237683 2024-02-11T09:56:46+01:00 Genome-wide analyses reveal drivers of penguin diversification Vianna, Juliana A. Fernandes, Flávia A.N. Frugone, María José Figueiró, Henrique V. Pertierra, Luis R. Noll, Daly Bi, Ke Wang-Claypool, Cynthia Y. Lowther, Andrew Parker, Patricia Le Bohec, Céline Bonadonna, Francesco Wienecke, Bárbara Pistorius, Pierre Steinfurth, Antje Burridge, Christopher P. Dantas, Gisele P.M. Simison, W. Brian Henderson, Jim Eizirik, Eduardo Nery, Mariana F. Bowie, Rauri C.K. Instituto Antártico Chileno Comisión Nacional de Investigación Científica y Tecnológica (Chile) Institut Polaire Français California Academy of Sciences Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil) Instituto Nacional de Ciência e Tecnologia (Brasil) Instituto Nacional de Ciência e Tecnologia em Ecologia Evolução Conservação da Biodiversida (Brasil) 2020-09-08 http://hdl.handle.net/10261/237683 https://doi.org/10.1073/pnas.2006659117 https://doi.org/10.13039/501100002848 https://doi.org/10.13039/501100003593 https://doi.org/10.13039/501100004796 unknown National Academy of Sciences (U.S.) http://dx.doi.org/10.1073/pnas.2006659117 Sí doi:10.1073/pnas.2006659117 issn: 1091-6490 Proceedings of the National Academy of Sciences of the USA 117(36): 22303-22310 (2020) http://hdl.handle.net/10261/237683 http://dx.doi.org/10.13039/501100002848 http://dx.doi.org/10.13039/501100003593 http://dx.doi.org/10.13039/501100004796 none Penguin Antarctica Genome Ancestral niche Ancestral distribution artículo http://purl.org/coar/resource_type/c_6501 2020 ftcsic https://doi.org/10.1073/pnas.200665911710.13039/50110000284810.13039/50110000359310.13039/501100004796 2024-01-16T11:07:00Z Penguins are the only extant family of flightless diving birds. They currently comprise at least 18 species, distributed from polar to tropical environments in the Southern Hemisphere. The history of their diversification and adaptation to these diverse environments remains controversial. We used 22 new genomes from 18 penguin species to reconstruct the order, timing, and location of their diversification, to track changes in their thermal niches through time, and to test for associated adaptation across the genome. Our results indicate that the penguin crown-group originated during the Miocene in New Zealand and Australia, not in Antarctica as previously thought, and that Aptenodytes is the sister group to all other extant penguin species. We show that lineage diversification in penguins was largely driven by changing climatic conditions and by the opening of the Drake Passage and associated intensification of the Antarctic Circumpolar Current (ACC). Penguin species have introgressed throughout much of their evolutionary history, following the direction of the ACC, which might have promoted dispersal and admixture. Changes in thermal niches were accompanied by adaptations in genes that govern thermoregulation and oxygen metabolism. Estimates of ancestral effective population sizes (Ne ) confirm that penguins are sensitive to climate shifts, as represented by three different demographic trajectories in deeper time, the most common (in 11 of 18 penguin species) being an increased Ne between 40 and 70 kya, followed by a precipitous decline during the Last Glacial Maximum. The latter effect is most likely a consequence of the overall decline in marine productivity following the last glaciation. Financial support for this work was provided by Instituto Antártico Chileno (INACH RT_12–14), Fondecyt Project 1150517, Genomics Antarctic Biodiversity/Programa de Investigación Asociativa/Comisión Nacional de Investigación Científica y Tecnológica (GAB PIA CONICYT ACT172065), NSF DEB-1441652, French Polar Institute ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Drake Passage Digital.CSIC (Spanish National Research Council) Antarctic Drake Passage Inach ENVELOPE(-60.783,-60.783,-62.467,-62.467) Kya ENVELOPE(8.308,8.308,63.772,63.772) New Zealand The Antarctic Proceedings of the National Academy of Sciences 117 36 22303 22310 |