The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives
The deep sea has a high biodiversity and a characteristic bathyal fauna. Earlier evidence suggested that at least some shallow-water species invaded the ecosystem followed by radiation leading to endemic deep-sea lineages with a genetic and/or morphological similarity to their shallow-water counterp...
Published in: | Journal of Zoological Systematics and Evolutionary Research |
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ftunivgent:oai:archive.ugent.be:5819714 2023-06-11T04:10:34+02:00 The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives Van Campenhout, Jelle Derycke, Sofie Tchesunov, Alexei Portnova, Daria Vanreusel, Ann 2014 application/pdf https://biblio.ugent.be/publication/5819714 http://hdl.handle.net/1854/LU-5819714 https://doi.org/10.1111/jzs.12054 https://biblio.ugent.be/publication/5819714/file/5820569 eng eng https://biblio.ugent.be/publication/5819714 http://hdl.handle.net/1854/LU-5819714 http://dx.doi.org/10.1111/jzs.12054 https://biblio.ugent.be/publication/5819714/file/5820569 No license (in copyright) info:eu-repo/semantics/restrictedAccess JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH ISSN: 0947-5745 Biology and Life Sciences population genetics Deep sea NEMATODE MONHYSTERA-DISJUNCTA PELLIODITIS-MARINA NORWEGIAN SEA Hakon Mosby mud volcano Halomonhystera cryptic species FREE-LIVING MARINE EAST PACIFIC RISE DEEP-SEA MITOCHONDRIAL-DNA PHYLOGENETIC INFERENCE CONTINENTAL-MARGIN CRYPTIC DIVERSITY journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftunivgent https://doi.org/10.1111/jzs.12054 2023-05-10T22:25:47Z The deep sea has a high biodiversity and a characteristic bathyal fauna. Earlier evidence suggested that at least some shallow-water species invaded the ecosystem followed by radiation leading to endemic deep-sea lineages with a genetic and/or morphological similarity to their shallow-water counterparts. The nematode Halomonhystera disjuncta has been reported from shallow-water habitats and the deep sea [Hakon Mosby mud volcano (HMMV)], but the morphological features and the phylogenetic relationships between deep-sea and shallow-water representatives remain largely unknown. Furthermore, nothing is known about the genetic structure of the H. disjuncta population within the HMMV. This study is the first integrative approach in which the morphological and phylogenetic relationships between a deep-sea and shallow-water free-living nematode species are investigated. To elucidate the phylogenetic relationships, we analysed the mitochondrial gene Cytochrome oxidase c subunit I (COI) and three nuclear ribosomal genes (Internal Transcribed Spacer region, 18S and the D2D3 region of 28S). Our results show that deep-sea nematodes comprise an endemic lineage compared to the shallow-water representatives with different morphometric features. COI genetic divergence between the deep-sea and shallow-water specimens ranges between 19.1% and 25.2%. Taking these findings into account, we conclude that the deep-sea form is a new species. AMOVA revealed no genetic structure across the HMMV, suggesting that nematodes are able to disperse efficiently in the mud volcano. Article in Journal/Newspaper Barents Sea Norwegian Sea Ghent University Academic Bibliography Barents Sea Norwegian Sea Pacific Journal of Zoological Systematics and Evolutionary Research 52 3 203 216 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences population genetics Deep sea NEMATODE MONHYSTERA-DISJUNCTA PELLIODITIS-MARINA NORWEGIAN SEA Hakon Mosby mud volcano Halomonhystera cryptic species FREE-LIVING MARINE EAST PACIFIC RISE DEEP-SEA MITOCHONDRIAL-DNA PHYLOGENETIC INFERENCE CONTINENTAL-MARGIN CRYPTIC DIVERSITY |
spellingShingle |
Biology and Life Sciences population genetics Deep sea NEMATODE MONHYSTERA-DISJUNCTA PELLIODITIS-MARINA NORWEGIAN SEA Hakon Mosby mud volcano Halomonhystera cryptic species FREE-LIVING MARINE EAST PACIFIC RISE DEEP-SEA MITOCHONDRIAL-DNA PHYLOGENETIC INFERENCE CONTINENTAL-MARGIN CRYPTIC DIVERSITY Van Campenhout, Jelle Derycke, Sofie Tchesunov, Alexei Portnova, Daria Vanreusel, Ann The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
topic_facet |
Biology and Life Sciences population genetics Deep sea NEMATODE MONHYSTERA-DISJUNCTA PELLIODITIS-MARINA NORWEGIAN SEA Hakon Mosby mud volcano Halomonhystera cryptic species FREE-LIVING MARINE EAST PACIFIC RISE DEEP-SEA MITOCHONDRIAL-DNA PHYLOGENETIC INFERENCE CONTINENTAL-MARGIN CRYPTIC DIVERSITY |
description |
The deep sea has a high biodiversity and a characteristic bathyal fauna. Earlier evidence suggested that at least some shallow-water species invaded the ecosystem followed by radiation leading to endemic deep-sea lineages with a genetic and/or morphological similarity to their shallow-water counterparts. The nematode Halomonhystera disjuncta has been reported from shallow-water habitats and the deep sea [Hakon Mosby mud volcano (HMMV)], but the morphological features and the phylogenetic relationships between deep-sea and shallow-water representatives remain largely unknown. Furthermore, nothing is known about the genetic structure of the H. disjuncta population within the HMMV. This study is the first integrative approach in which the morphological and phylogenetic relationships between a deep-sea and shallow-water free-living nematode species are investigated. To elucidate the phylogenetic relationships, we analysed the mitochondrial gene Cytochrome oxidase c subunit I (COI) and three nuclear ribosomal genes (Internal Transcribed Spacer region, 18S and the D2D3 region of 28S). Our results show that deep-sea nematodes comprise an endemic lineage compared to the shallow-water representatives with different morphometric features. COI genetic divergence between the deep-sea and shallow-water specimens ranges between 19.1% and 25.2%. Taking these findings into account, we conclude that the deep-sea form is a new species. AMOVA revealed no genetic structure across the HMMV, suggesting that nematodes are able to disperse efficiently in the mud volcano. |
format |
Article in Journal/Newspaper |
author |
Van Campenhout, Jelle Derycke, Sofie Tchesunov, Alexei Portnova, Daria Vanreusel, Ann |
author_facet |
Van Campenhout, Jelle Derycke, Sofie Tchesunov, Alexei Portnova, Daria Vanreusel, Ann |
author_sort |
Van Campenhout, Jelle |
title |
The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
title_short |
The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
title_full |
The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
title_fullStr |
The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
title_full_unstemmed |
The Halomonhystera disjuncta population is homogeneous across the Håkon Mosby mud volcano (Barents Sea) but is genetically differentiated from its shallow-water relatives |
title_sort |
halomonhystera disjuncta population is homogeneous across the håkon mosby mud volcano (barents sea) but is genetically differentiated from its shallow-water relatives |
publishDate |
2014 |
url |
https://biblio.ugent.be/publication/5819714 http://hdl.handle.net/1854/LU-5819714 https://doi.org/10.1111/jzs.12054 https://biblio.ugent.be/publication/5819714/file/5820569 |
geographic |
Barents Sea Norwegian Sea Pacific |
geographic_facet |
Barents Sea Norwegian Sea Pacific |
genre |
Barents Sea Norwegian Sea |
genre_facet |
Barents Sea Norwegian Sea |
op_source |
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH ISSN: 0947-5745 |
op_relation |
https://biblio.ugent.be/publication/5819714 http://hdl.handle.net/1854/LU-5819714 http://dx.doi.org/10.1111/jzs.12054 https://biblio.ugent.be/publication/5819714/file/5820569 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/jzs.12054 |
container_title |
Journal of Zoological Systematics and Evolutionary Research |
container_volume |
52 |
container_issue |
3 |
container_start_page |
203 |
op_container_end_page |
216 |
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1768385050215186432 |