DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda)
Recent molecular analyses revealed that many so-called “circum-Antarctic†benthic crustacean species appeared to be a complex of cryptic species with restricted distributions. In this study, we used DNA barcoding to detect possible cryptic diversity within the amphipod genus Orchomene s. lat. (su...
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:121205 2024-05-12T07:56:00+00:00 DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) Havermans, Charlotte Nagy, Zoltán T. Sonet, Gontran De Broyer, Claude Martin, Patrick CeDAMar (Census of the Diversity of Abyssal Marine Life) International workshop on cosmopolitism in the abyss UCL - SST/ELI - Earth and Life Institute 2008 http://hdl.handle.net/2078/121205 eng eng boreal:121205 http://hdl.handle.net/2078/121205 info:eu-repo/semantics/conferenceObject 2008 ftunistlouisbrus 2024-04-18T18:02:39Z Recent molecular analyses revealed that many so-called “circum-Antarctic†benthic crustacean species appeared to be a complex of cryptic species with restricted distributions. In this study, we used DNA barcoding to detect possible cryptic diversity within the amphipod genus Orchomene s. lat. (superfamily Lysianassoidea) and to test the circumpolarity of some species belonging to this group. The analysis of mitochondrial cytochrome c oxidase I sequences indicated, in some species, a genetic homogeneity among specimens from remote sampling sites. Moreover, the eurybathy of some species was confirmed by a very low genetic diversity between specimens originating from shelf and abyssal depths. In other species, DNA barcoding revealed genetically divergent, cryptic taxa, occurring in sympatry. In addition, the DNA barcoding served as a tool for a quick sorting of the sample material into genetic units and enabled us to detect new species within the Orchomene complex. These results were confirmed by further analyses based on 28S rRNA sequences. Conference Object Antarc* Antarctic DIAL@USL-B (Université Saint-Louis, Bruxelles) Antarctic |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
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ftunistlouisbrus |
language |
English |
description |
Recent molecular analyses revealed that many so-called “circum-Antarctic†benthic crustacean species appeared to be a complex of cryptic species with restricted distributions. In this study, we used DNA barcoding to detect possible cryptic diversity within the amphipod genus Orchomene s. lat. (superfamily Lysianassoidea) and to test the circumpolarity of some species belonging to this group. The analysis of mitochondrial cytochrome c oxidase I sequences indicated, in some species, a genetic homogeneity among specimens from remote sampling sites. Moreover, the eurybathy of some species was confirmed by a very low genetic diversity between specimens originating from shelf and abyssal depths. In other species, DNA barcoding revealed genetically divergent, cryptic taxa, occurring in sympatry. In addition, the DNA barcoding served as a tool for a quick sorting of the sample material into genetic units and enabled us to detect new species within the Orchomene complex. These results were confirmed by further analyses based on 28S rRNA sequences. |
author2 |
UCL - SST/ELI - Earth and Life Institute |
format |
Conference Object |
author |
Havermans, Charlotte Nagy, Zoltán T. Sonet, Gontran De Broyer, Claude Martin, Patrick CeDAMar (Census of the Diversity of Abyssal Marine Life) International workshop on cosmopolitism in the abyss |
spellingShingle |
Havermans, Charlotte Nagy, Zoltán T. Sonet, Gontran De Broyer, Claude Martin, Patrick CeDAMar (Census of the Diversity of Abyssal Marine Life) International workshop on cosmopolitism in the abyss DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
author_facet |
Havermans, Charlotte Nagy, Zoltán T. Sonet, Gontran De Broyer, Claude Martin, Patrick CeDAMar (Census of the Diversity of Abyssal Marine Life) International workshop on cosmopolitism in the abyss |
author_sort |
Havermans, Charlotte |
title |
DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
title_short |
DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
title_full |
DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
title_fullStr |
DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
title_full_unstemmed |
DNA barcoding reveals both cryptic and eurybathic, circumpolar species in Antarctic Lysianassoidea (Crustacea: Amphipoda) |
title_sort |
dna barcoding reveals both cryptic and eurybathic, circumpolar species in antarctic lysianassoidea (crustacea: amphipoda) |
publishDate |
2008 |
url |
http://hdl.handle.net/2078/121205 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
boreal:121205 http://hdl.handle.net/2078/121205 |
_version_ |
1798835904847020032 |