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The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle
Pteropods are a group of planktonic gastropods that are widely regarded as biological indicators for assessing the impacts of ocean acidification. Their aragonitic shells are highly sensitive to acute changes in ocean chemistry. However, to gain insight into their potential to adapt to current clima...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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National Academy of Sciences
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7568333/ https://www.ncbi.nlm.nih.gov/pubmed/32973093 http://dx.doi.org/10.1073/pnas.1920918117 |
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author | Peijnenburg, Katja T. C. A. Janssen, Arie W. Wall-Palmer, Deborah Goetze, Erica Maas, Amy E. Todd, Jonathan A. Marlétaz, Ferdinand |
author_facet | Peijnenburg, Katja T. C. A. Janssen, Arie W. Wall-Palmer, Deborah Goetze, Erica Maas, Amy E. Todd, Jonathan A. Marlétaz, Ferdinand |
author_sort | Peijnenburg, Katja T. C. A. |
collection | PubMed |
description | Pteropods are a group of planktonic gastropods that are widely regarded as biological indicators for assessing the impacts of ocean acidification. Their aragonitic shells are highly sensitive to acute changes in ocean chemistry. However, to gain insight into their potential to adapt to current climate change, we need to accurately reconstruct their evolutionary history and assess their responses to past changes in the Earth’s carbon cycle. Here, we resolve the phylogeny and timing of pteropod evolution with a phylogenomic dataset (2,654 genes) incorporating new data for 21 pteropod species and revised fossil evidence. In agreement with traditional taxonomy, we recovered molecular support for a division between “sea butterflies” (Thecosomata; mucus-web feeders) and “sea angels” (Gymnosomata; active predators). Molecular dating demonstrated that these two lineages diverged in the early Cretaceous, and that all main pteropod clades, including shelled, partially-shelled, and unshelled groups, diverged in the mid- to late Cretaceous. Hence, these clades originated prior to and subsequently survived major global change events, including the Paleocene–Eocene Thermal Maximum (PETM), the closest analog to modern-day ocean acidification and warming. Our findings indicate that planktonic aragonitic calcifiers have shown resilience to perturbations in the Earth’s carbon cycle over evolutionary timescales. |
format | Online Article Text |
id | pubmed-7568333 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-75683332020-10-27 The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle Peijnenburg, Katja T. C. A. Janssen, Arie W. Wall-Palmer, Deborah Goetze, Erica Maas, Amy E. Todd, Jonathan A. Marlétaz, Ferdinand Proc Natl Acad Sci U S A Biological Sciences Pteropods are a group of planktonic gastropods that are widely regarded as biological indicators for assessing the impacts of ocean acidification. Their aragonitic shells are highly sensitive to acute changes in ocean chemistry. However, to gain insight into their potential to adapt to current climate change, we need to accurately reconstruct their evolutionary history and assess their responses to past changes in the Earth’s carbon cycle. Here, we resolve the phylogeny and timing of pteropod evolution with a phylogenomic dataset (2,654 genes) incorporating new data for 21 pteropod species and revised fossil evidence. In agreement with traditional taxonomy, we recovered molecular support for a division between “sea butterflies” (Thecosomata; mucus-web feeders) and “sea angels” (Gymnosomata; active predators). Molecular dating demonstrated that these two lineages diverged in the early Cretaceous, and that all main pteropod clades, including shelled, partially-shelled, and unshelled groups, diverged in the mid- to late Cretaceous. Hence, these clades originated prior to and subsequently survived major global change events, including the Paleocene–Eocene Thermal Maximum (PETM), the closest analog to modern-day ocean acidification and warming. Our findings indicate that planktonic aragonitic calcifiers have shown resilience to perturbations in the Earth’s carbon cycle over evolutionary timescales. National Academy of Sciences 2020-10-13 2020-09-24 /pmc/articles/PMC7568333/ /pubmed/32973093 http://dx.doi.org/10.1073/pnas.1920918117 Text en Copyright © 2020 the Author(s). Published by PNAS. http://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/This open access article is distributed under Creative Commons Attribution License 4.0 (CC BY) (http://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Biological Sciences Peijnenburg, Katja T. C. A. Janssen, Arie W. Wall-Palmer, Deborah Goetze, Erica Maas, Amy E. Todd, Jonathan A. Marlétaz, Ferdinand The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title | The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title_full | The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title_fullStr | The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title_full_unstemmed | The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title_short | The origin and diversification of pteropods precede past perturbations in the Earth’s carbon cycle |
title_sort | origin and diversification of pteropods precede past perturbations in the earth’s carbon cycle |
topic | Biological Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7568333/ https://www.ncbi.nlm.nih.gov/pubmed/32973093 http://dx.doi.org/10.1073/pnas.1920918117 |
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