Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae)
International audience Coral reefs constitute the most diverse ecosystem of the marine realm and an increasing number of studies are focusing on coral species boundaries, distribution, and on processes that control species ranges. However, less attention has been paid to coral associated species. De...
Published in: | Molecular Phylogenetics and Evolution |
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Online Access: | https://hal.inrae.fr/hal-02658719 https://doi.org/10.1016/j.ympev.2010.03.034 |
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ftccsdartic:oai:HAL:hal-02658719v1 2023-05-15T16:29:57+02:00 Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) Reveillaud, Julie Remerie, Thomas van Soest, Rob Erpenbeck, Dirk Cárdenas, Paco Derycke, Sofie Xavier, Joana R. Rigaux, Annelien Vanreusel, Ann Marine Biology Section, Biology Department Universiteit Gent = Ghent University Belgium (UGENT) 2010 https://hal.inrae.fr/hal-02658719 https://doi.org/10.1016/j.ympev.2010.03.034 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2010.03.034 hal-02658719 https://hal.inrae.fr/hal-02658719 doi:10.1016/j.ympev.2010.03.034 PRODINRA: 369902 WOS: 000278589500009 ISSN: 1055-7903 EISSN: 1095-9513 Molecular Phylogenetics and Evolution https://hal.inrae.fr/hal-02658719 Molecular Phylogenetics and Evolution, Elsevier, 2010, 56 (1), pp.104-114. ⟨10.1016/j.ympev.2010.03.034⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1016/j.ympev.2010.03.034 2021-11-07T01:02:20Z International audience Coral reefs constitute the most diverse ecosystem of the marine realm and an increasing number of studies are focusing on coral species boundaries, distribution, and on processes that control species ranges. However, less attention has been paid to coral associated species. Deep-sea sponges dominate cold-water coral ecosystems, but virtually nothing is known about their molecular diversity. Moreover, species boundaries based on morphology may sometimes be inadequate, since sponges have few diagnostic characters. In this study, we investigated the molecular diversity within the genus Hexadella (Porifera, Demospongiae, Verongida, Ianthellidae) from the European shallow-water environment to the deep-sea coral ecosystems. Three molecular markers were used: one mitochondrial (COI) and two nuclear gene fragments (28S rDNA and the ATPS intron). Phylogenetic analyses revealed deeply divergent deep-sea clades congruent across the mitochondrial and nuclear markers. One clade contained specimens from the Irish, the Scottish, and the Norwegian margins and the Greenland Sea (Hexadella dedritifera) while another clade contained specimens from the Ionian Sea, the Bay of Biscay, and the Irish margin (H. cf. dedritifera). Moreover, these deeply divergent deep-sea clades showed a wide distribution suggesting a connection between the reefs. The results also point to the existence of a new deep-sea species (Hexadella sp.) in the Mediterranean Sea and of a cryptic shallow-water species (Hexadella cf. pruvoti) in the Gorringe Bank. In contrast, low genetic differentiation between H. cf. dedritifera and H. pruvoti from the Mediterranean Sea was observed. All Hexadella racovitzai specimens from the Mediterranean Sea (shallow and deep) to the Atlantic formed a monophyletic group. Article in Journal/Newspaper Greenland Greenland Sea Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Greenland Molecular Phylogenetics and Evolution 56 1 104 114 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology Reveillaud, Julie Remerie, Thomas van Soest, Rob Erpenbeck, Dirk Cárdenas, Paco Derycke, Sofie Xavier, Joana R. Rigaux, Annelien Vanreusel, Ann Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Coral reefs constitute the most diverse ecosystem of the marine realm and an increasing number of studies are focusing on coral species boundaries, distribution, and on processes that control species ranges. However, less attention has been paid to coral associated species. Deep-sea sponges dominate cold-water coral ecosystems, but virtually nothing is known about their molecular diversity. Moreover, species boundaries based on morphology may sometimes be inadequate, since sponges have few diagnostic characters. In this study, we investigated the molecular diversity within the genus Hexadella (Porifera, Demospongiae, Verongida, Ianthellidae) from the European shallow-water environment to the deep-sea coral ecosystems. Three molecular markers were used: one mitochondrial (COI) and two nuclear gene fragments (28S rDNA and the ATPS intron). Phylogenetic analyses revealed deeply divergent deep-sea clades congruent across the mitochondrial and nuclear markers. One clade contained specimens from the Irish, the Scottish, and the Norwegian margins and the Greenland Sea (Hexadella dedritifera) while another clade contained specimens from the Ionian Sea, the Bay of Biscay, and the Irish margin (H. cf. dedritifera). Moreover, these deeply divergent deep-sea clades showed a wide distribution suggesting a connection between the reefs. The results also point to the existence of a new deep-sea species (Hexadella sp.) in the Mediterranean Sea and of a cryptic shallow-water species (Hexadella cf. pruvoti) in the Gorringe Bank. In contrast, low genetic differentiation between H. cf. dedritifera and H. pruvoti from the Mediterranean Sea was observed. All Hexadella racovitzai specimens from the Mediterranean Sea (shallow and deep) to the Atlantic formed a monophyletic group. |
author2 |
Marine Biology Section, Biology Department Universiteit Gent = Ghent University Belgium (UGENT) |
format |
Article in Journal/Newspaper |
author |
Reveillaud, Julie Remerie, Thomas van Soest, Rob Erpenbeck, Dirk Cárdenas, Paco Derycke, Sofie Xavier, Joana R. Rigaux, Annelien Vanreusel, Ann |
author_facet |
Reveillaud, Julie Remerie, Thomas van Soest, Rob Erpenbeck, Dirk Cárdenas, Paco Derycke, Sofie Xavier, Joana R. Rigaux, Annelien Vanreusel, Ann |
author_sort |
Reveillaud, Julie |
title |
Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
title_short |
Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
title_full |
Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
title_fullStr |
Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
title_full_unstemmed |
Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae) |
title_sort |
species boundaries and phylogenetic relationships between atlanto-mediterranean shallow-water and deep-sea coral associated hexadella species (porifera, ianthellidae) |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.inrae.fr/hal-02658719 https://doi.org/10.1016/j.ympev.2010.03.034 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland Sea |
genre_facet |
Greenland Greenland Sea |
op_source |
ISSN: 1055-7903 EISSN: 1095-9513 Molecular Phylogenetics and Evolution https://hal.inrae.fr/hal-02658719 Molecular Phylogenetics and Evolution, Elsevier, 2010, 56 (1), pp.104-114. ⟨10.1016/j.ympev.2010.03.034⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2010.03.034 hal-02658719 https://hal.inrae.fr/hal-02658719 doi:10.1016/j.ympev.2010.03.034 PRODINRA: 369902 WOS: 000278589500009 |
op_doi |
https://doi.org/10.1016/j.ympev.2010.03.034 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
56 |
container_issue |
1 |
container_start_page |
104 |
op_container_end_page |
114 |
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1766019655622721536 |