Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach
The Antarctic marine environment hosts diversified and highly endemic benthos owing to its unique geologic and climatic history. Current warming trends have increased the urgency of understanding Antarctic species history to predict how environmental changes will impact ecosystem functioning. Antarc...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288932/ http://www.ncbi.nlm.nih.gov/pubmed/35866013 https://doi.org/10.1002/ece3.9093 |
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ftpubmed:oai:pubmedcentral.nih.gov:9288932 2023-05-15T13:59:47+02:00 Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach Cowart, Dominique A. Schiaparelli, Stefano Alvaro, Maria Chiara Cecchetto, Matteo Le Port, Anne‐Sophie Jollivet, Didier Hourdez, Stephane 2022-07-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288932/ http://www.ncbi.nlm.nih.gov/pubmed/35866013 https://doi.org/10.1002/ece3.9093 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288932/ http://www.ncbi.nlm.nih.gov/pubmed/35866013 http://dx.doi.org/10.1002/ece3.9093 © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Ecol Evol Research Articles Text 2022 ftpubmed https://doi.org/10.1002/ece3.9093 2022-07-31T01:50:52Z The Antarctic marine environment hosts diversified and highly endemic benthos owing to its unique geologic and climatic history. Current warming trends have increased the urgency of understanding Antarctic species history to predict how environmental changes will impact ecosystem functioning. Antarctic benthic lineages have traditionally been examined under three hypotheses: (1) high endemism and local radiation, (2) emergence of deep‐sea taxa through thermohaline circulation, and (3) species migrations across the Polar Front. In this study, we investigated which hypotheses best describe benthic invertebrate origins by examining Antarctic scale worms (Polynoidae). We amassed 691 polynoid sequences from the Southern Ocean and neighboring areas: the Kerguelen and Tierra del Fuego (South America) archipelagos, the Indian Ocean, and waters around New Zealand. We performed phylogenetic reconstructions to identify lineages across geographic regions, aided by mitochondrial markers cytochrome c oxidase subunit I (Cox1) and 16S ribosomal RNA (16S). Additionally, we produced haplotype networks at the species scale to examine genetic diversity, biogeographic separations, and past demography. The Cox1 dataset provided the most illuminating insights into the evolution of polynoids, with a total of 36 lineages identified. Eunoe sp. was present at Tierra del Fuego and Kerguelen, in favor of the latter acting as a migration crossroads. Harmothoe fuligineum, widespread around the Antarctic continent, was also present but isolated at Kerguelen, possibly resulting from historical freeze–thaw cycles. The genus Polyeunoa appears to have diversified prior to colonizing the continent, leading to the co‐occurrence of at least three cryptic species around the Southern and Indian Oceans. Analyses identified that nearly all populations are presently expanding following a bottleneck event, possibly caused by habitat reduction from the last glacial episodes. Findings support multiple origins for contemporary Antarctic polynoids, and some ... Text Antarc* Antarctic Southern Ocean Tierra del Fuego PubMed Central (PMC) Antarctic Indian Kerguelen New Zealand Southern Ocean The Antarctic Ecology and Evolution 12 7 |
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Research Articles |
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Research Articles Cowart, Dominique A. Schiaparelli, Stefano Alvaro, Maria Chiara Cecchetto, Matteo Le Port, Anne‐Sophie Jollivet, Didier Hourdez, Stephane Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
topic_facet |
Research Articles |
description |
The Antarctic marine environment hosts diversified and highly endemic benthos owing to its unique geologic and climatic history. Current warming trends have increased the urgency of understanding Antarctic species history to predict how environmental changes will impact ecosystem functioning. Antarctic benthic lineages have traditionally been examined under three hypotheses: (1) high endemism and local radiation, (2) emergence of deep‐sea taxa through thermohaline circulation, and (3) species migrations across the Polar Front. In this study, we investigated which hypotheses best describe benthic invertebrate origins by examining Antarctic scale worms (Polynoidae). We amassed 691 polynoid sequences from the Southern Ocean and neighboring areas: the Kerguelen and Tierra del Fuego (South America) archipelagos, the Indian Ocean, and waters around New Zealand. We performed phylogenetic reconstructions to identify lineages across geographic regions, aided by mitochondrial markers cytochrome c oxidase subunit I (Cox1) and 16S ribosomal RNA (16S). Additionally, we produced haplotype networks at the species scale to examine genetic diversity, biogeographic separations, and past demography. The Cox1 dataset provided the most illuminating insights into the evolution of polynoids, with a total of 36 lineages identified. Eunoe sp. was present at Tierra del Fuego and Kerguelen, in favor of the latter acting as a migration crossroads. Harmothoe fuligineum, widespread around the Antarctic continent, was also present but isolated at Kerguelen, possibly resulting from historical freeze–thaw cycles. The genus Polyeunoa appears to have diversified prior to colonizing the continent, leading to the co‐occurrence of at least three cryptic species around the Southern and Indian Oceans. Analyses identified that nearly all populations are presently expanding following a bottleneck event, possibly caused by habitat reduction from the last glacial episodes. Findings support multiple origins for contemporary Antarctic polynoids, and some ... |
format |
Text |
author |
Cowart, Dominique A. Schiaparelli, Stefano Alvaro, Maria Chiara Cecchetto, Matteo Le Port, Anne‐Sophie Jollivet, Didier Hourdez, Stephane |
author_facet |
Cowart, Dominique A. Schiaparelli, Stefano Alvaro, Maria Chiara Cecchetto, Matteo Le Port, Anne‐Sophie Jollivet, Didier Hourdez, Stephane |
author_sort |
Cowart, Dominique A. |
title |
Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
title_short |
Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
title_full |
Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
title_fullStr |
Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
title_full_unstemmed |
Origin, diversity, and biogeography of Antarctic scale worms (Polychaeta: Polynoidae): a wide‐scale barcoding approach |
title_sort |
origin, diversity, and biogeography of antarctic scale worms (polychaeta: polynoidae): a wide‐scale barcoding approach |
publisher |
John Wiley and Sons Inc. |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288932/ http://www.ncbi.nlm.nih.gov/pubmed/35866013 https://doi.org/10.1002/ece3.9093 |
geographic |
Antarctic Indian Kerguelen New Zealand Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Kerguelen New Zealand Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean Tierra del Fuego |
genre_facet |
Antarc* Antarctic Southern Ocean Tierra del Fuego |
op_source |
Ecol Evol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288932/ http://www.ncbi.nlm.nih.gov/pubmed/35866013 http://dx.doi.org/10.1002/ece3.9093 |
op_rights |
© 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.9093 |
container_title |
Ecology and Evolution |
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12 |
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7 |
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1766268611284959232 |