Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence
Thouarella Gray, 1870, is one of the most speciose genera among gorgonians of the family Primnoidae (Cnidaria : Octocorallia : Anthozoa), being remarkably diverse in the Antarctic and sub-Antarctic seafloor. However, their diversity in the Southern Ocean is likely underestimated. Phylogenetic analys...
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ftbioone:10.1071/IS20078 2024-06-02T07:56:50+00:00 Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González world 2021-08-13 text/HTML https://doi.org/10.1071/IS20078 en eng CSIRO Publishing doi:10.1071/IS20078 All rights reserved. https://doi.org/10.1071/IS20078 Antarctic marine biodiversity Weddell Sea Text 2021 ftbioone https://doi.org/10.1071/IS20078 2024-05-07T00:49:46Z Thouarella Gray, 1870, is one of the most speciose genera among gorgonians of the family Primnoidae (Cnidaria : Octocorallia : Anthozoa), being remarkably diverse in the Antarctic and sub-Antarctic seafloor. However, their diversity in the Southern Ocean is likely underestimated. Phylogenetic analyses of mitochondrial and nuclear DNA markers were integrated with species delimitation approaches as well as morphological colonial and polyps features and skeletal SEM examinations to describe and illustrate three new species within Thouarella, from the Weddell Sea, Southern Ocean: T. amundseni sp. nov., T. dolichoespinosa sp. nov. and T. pseudoislai sp. nov. Our species delimitation results suggest, for the first time, the potential presence of Antarctic and sub-Antarctic cryptic species of primnoids, based on the likely presence of sibling species within T. undulata and T. crenelata. With the three new species here described, the global diversity of Thouarella has increased to 41 species, 15 of which are endemic to the Antarctic and sub-Antarctic waters. Consequently, our results provide new steps for uncovering the shelf benthonic macrofauna’s hidden diversity in the Southern Ocean. Finally, we recommend using an integrative taxonomic framework in this group of organisms and species delimitation approaches because the distinctions between some Thouarella species based only on a superficial examination of their macro- and micromorphological features is, in many cases, limited. Text Antarc* Antarctic Southern Ocean Weddell Sea BioOne Online Journals Antarctic Southern Ocean The Antarctic Weddell Weddell Sea Invertebrate Systematics 35 6 655 674 |
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English |
topic |
Antarctic marine biodiversity Weddell Sea |
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Antarctic marine biodiversity Weddell Sea Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
topic_facet |
Antarctic marine biodiversity Weddell Sea |
description |
Thouarella Gray, 1870, is one of the most speciose genera among gorgonians of the family Primnoidae (Cnidaria : Octocorallia : Anthozoa), being remarkably diverse in the Antarctic and sub-Antarctic seafloor. However, their diversity in the Southern Ocean is likely underestimated. Phylogenetic analyses of mitochondrial and nuclear DNA markers were integrated with species delimitation approaches as well as morphological colonial and polyps features and skeletal SEM examinations to describe and illustrate three new species within Thouarella, from the Weddell Sea, Southern Ocean: T. amundseni sp. nov., T. dolichoespinosa sp. nov. and T. pseudoislai sp. nov. Our species delimitation results suggest, for the first time, the potential presence of Antarctic and sub-Antarctic cryptic species of primnoids, based on the likely presence of sibling species within T. undulata and T. crenelata. With the three new species here described, the global diversity of Thouarella has increased to 41 species, 15 of which are endemic to the Antarctic and sub-Antarctic waters. Consequently, our results provide new steps for uncovering the shelf benthonic macrofauna’s hidden diversity in the Southern Ocean. Finally, we recommend using an integrative taxonomic framework in this group of organisms and species delimitation approaches because the distinctions between some Thouarella species based only on a superficial examination of their macro- and micromorphological features is, in many cases, limited. |
author2 |
Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González |
format |
Text |
author |
Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González |
author_facet |
Mónica Núñez-Flores Daniel Gomez-Uchida Pablo J. López-González |
author_sort |
Mónica Núñez-Flores |
title |
Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
title_short |
Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
title_full |
Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
title_fullStr |
Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
title_full_unstemmed |
Molecular systematics of Thouarella (Octocorallia : Primnoidae) with the description of three new species from the Southern Ocean based on combined molecular and morphological evidence |
title_sort |
molecular systematics of thouarella (octocorallia : primnoidae) with the description of three new species from the southern ocean based on combined molecular and morphological evidence |
publisher |
CSIRO Publishing |
publishDate |
2021 |
url |
https://doi.org/10.1071/IS20078 |
op_coverage |
world |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_source |
https://doi.org/10.1071/IS20078 |
op_relation |
doi:10.1071/IS20078 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1071/IS20078 |
container_title |
Invertebrate Systematics |
container_volume |
35 |
container_issue |
6 |
container_start_page |
655 |
op_container_end_page |
674 |
_version_ |
1800759377019273216 |