Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill
Mesophotic coral ecosystems (MCEs) are recognized around the world as diverse and ecologically important habitats. In the northern Gulf of Mexico (GoMx), MCEs are rocky reefs with abundant black corals and octocorals, including the species Swiftia exserta. Surveys following the Deepwater Horizon (DW...
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ftmdpi:oai:mdpi.com:/1424-2818/13/4/172/ 2023-08-20T04:08:26+02:00 Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill Janessy Frometa Peter J. Etnoyer Andrea M. Quattrini Santiago Herrera Thomas W. Greig agris 2021-04-17 application/pdf https://doi.org/10.3390/d13040172 EN eng Multidisciplinary Digital Publishing Institute Marine Diversity https://dx.doi.org/10.3390/d13040172 https://creativecommons.org/licenses/by/4.0/ Diversity; Volume 13; Issue 4; Pages: 172 Swiftia mtMutS 28S phylogenetics DNA barcoding Deepwater Horizon Text 2021 ftmdpi https://doi.org/10.3390/d13040172 2023-08-01T01:31:33Z Mesophotic coral ecosystems (MCEs) are recognized around the world as diverse and ecologically important habitats. In the northern Gulf of Mexico (GoMx), MCEs are rocky reefs with abundant black corals and octocorals, including the species Swiftia exserta. Surveys following the Deepwater Horizon (DWH) oil spill in 2010 revealed significant injury to these and other species, the restoration of which requires an in-depth understanding of the biology, ecology, and genetic diversity of each species. To support a larger population connectivity study of impacted octocorals in the GoMx, this study combined sequences of mtMutS and nuclear 28S rDNA to confirm the identity of Swiftia sea fans in the GoMx, compare these markers for different polyp colors in the GoMx and Atlantic, and examine the phylogeny of the genus. Two mtMutS haplotypes were identified, one seemingly endemic to the northern GoMx. Compared to other North Atlantic Swiftia, S. exserta, the type of the genus was found to be extremely divergent and distinct from the two other Swiftia at both loci, with strong evidence of polyphyly in the genus. This information refines our understanding of the geographical distribution of injured coral and highlights how little is known about MCEs. Substantial taxonomic revisions may be needed for several taxa injured by the DWH oil spill. Text North Atlantic MDPI Open Access Publishing Diversity 13 4 172 |
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MDPI Open Access Publishing |
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ftmdpi |
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English |
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Swiftia mtMutS 28S phylogenetics DNA barcoding Deepwater Horizon |
spellingShingle |
Swiftia mtMutS 28S phylogenetics DNA barcoding Deepwater Horizon Janessy Frometa Peter J. Etnoyer Andrea M. Quattrini Santiago Herrera Thomas W. Greig Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
topic_facet |
Swiftia mtMutS 28S phylogenetics DNA barcoding Deepwater Horizon |
description |
Mesophotic coral ecosystems (MCEs) are recognized around the world as diverse and ecologically important habitats. In the northern Gulf of Mexico (GoMx), MCEs are rocky reefs with abundant black corals and octocorals, including the species Swiftia exserta. Surveys following the Deepwater Horizon (DWH) oil spill in 2010 revealed significant injury to these and other species, the restoration of which requires an in-depth understanding of the biology, ecology, and genetic diversity of each species. To support a larger population connectivity study of impacted octocorals in the GoMx, this study combined sequences of mtMutS and nuclear 28S rDNA to confirm the identity of Swiftia sea fans in the GoMx, compare these markers for different polyp colors in the GoMx and Atlantic, and examine the phylogeny of the genus. Two mtMutS haplotypes were identified, one seemingly endemic to the northern GoMx. Compared to other North Atlantic Swiftia, S. exserta, the type of the genus was found to be extremely divergent and distinct from the two other Swiftia at both loci, with strong evidence of polyphyly in the genus. This information refines our understanding of the geographical distribution of injured coral and highlights how little is known about MCEs. Substantial taxonomic revisions may be needed for several taxa injured by the DWH oil spill. |
format |
Text |
author |
Janessy Frometa Peter J. Etnoyer Andrea M. Quattrini Santiago Herrera Thomas W. Greig |
author_facet |
Janessy Frometa Peter J. Etnoyer Andrea M. Quattrini Santiago Herrera Thomas W. Greig |
author_sort |
Janessy Frometa |
title |
Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
title_short |
Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
title_full |
Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
title_fullStr |
Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
title_full_unstemmed |
Genetic Divergence and Polyphyly in the Octocoral Genus Swiftia [Cnidaria: Octocorallia], Including a Species Impacted by the DWH Oil Spill |
title_sort |
genetic divergence and polyphyly in the octocoral genus swiftia [cnidaria: octocorallia], including a species impacted by the dwh oil spill |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/d13040172 |
op_coverage |
agris |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Diversity; Volume 13; Issue 4; Pages: 172 |
op_relation |
Marine Diversity https://dx.doi.org/10.3390/d13040172 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/d13040172 |
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Diversity |
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172 |
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