Deep phylogeny of the amphipod super-family Eusiroidea
The super-family Eusiroidea is traditionally divided into 4 families, namely Calliopiidae, Eusiridae, Gammarellidae and Pontogeneiidae (De Broyer et al., 2007), but recent phylogenetic data suggests that the eusiroid clade forms a much broader assemblage (Englisch, 2001). Representatives are found i...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Conference Object |
Language: | English |
Published: |
Mees, J.; Seys, J.
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/2078.1/191976 |
id |
ftunistlouisbrus:oai:dial.uclouvain.be:boreal:191976 |
---|---|
record_format |
openpolar |
spelling |
ftunistlouisbrus:oai:dial.uclouvain.be:boreal:191976 2024-05-12T07:55:30+00:00 Deep phylogeny of the amphipod super-family Eusiroidea Verheye, Marie Cédric d'Udekem d'Acoz VLIZ Young Scientists’ Day UCL - SST/ELI/ELIB - Biodiversity 2014 http://hdl.handle.net/2078.1/191976 eng eng Mees, J.; Seys, J. boreal:191976 http://hdl.handle.net/2078.1/191976 urn:ISSN:1377-0950 Book of abstracts – VLIZ Young Scientists’ Day, Vol. VLIZ special publication, p. 123 (2014) info:eu-repo/semantics/conferenceObject 2014 ftunistlouisbrus 2024-04-18T17:33:31Z The super-family Eusiroidea is traditionally divided into 4 families, namely Calliopiidae, Eusiridae, Gammarellidae and Pontogeneiidae (De Broyer et al., 2007), but recent phylogenetic data suggests that the eusiroid clade forms a much broader assemblage (Englisch, 2001). Representatives are found in all oceans, inhabiting every trophic niches and a wide bathymetric range. With 216 described species in the Southern Ocean (i.e. about 24% o f its known amphipod fauna), eusiroids constitute a significant fraction of the Antarctic and sub-Antarctic biodiversity (De Broyer et al., 2007). The eusirid concept is very inadequately defined morphologically. The super-family form s a diverse assemblage of taxa o f gammaroid form , globally characterized by the loss or reduction of the accessory flagellum (Bousfield & Hendrycks 1995). The fam ily assignment of genera is often challenging, since there is no consistent set o f diagnostic characters defining most o f them. The 6 families form erly comprised in the non-validated taxon Iphimedioidea (Lowry & Myers 2000), as well as the Astyridae and Stilipedidae were recently considered as eusiroids. Moreover, previous 18S phylogenetic reconstructions revealed that the Astyridae, Iphimediidae, Epimeriidae and Pleustidae are nested w ithin the eusiroid clade (Englisch 2001). With the aim o f clarifying those major nomenclatural uncertainties and discussing the phylogenetic relationships, a deep phylogeny of the super-family Eusiroidea, including representatives o f all the aforementioned families, was reconstructed using two different gene fragm ents (28S rRNA and 1 8S rRNA). The analysis was performed at a global scale, mostly with Antarctic taxa, but also European and Arctic species. The study confirms that the Eusiroidea form s a must broader clade than claimed in classical literature. It revealed that most o f the traditionally delimited families are not m onophyletic and that a few taxa previously considered as eusiroids {Gammarellus, Cleippides) are in fact very ... Conference Object Antarc* Antarctic Arctic Southern Ocean DIAL@USL-B (Université Saint-Louis, Bruxelles) Antarctic Arctic Lowry ENVELOPE(-64.150,-64.150,-84.550,-84.550) Myers ENVELOPE(170.033,170.033,-72.117,-72.117) Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
description |
The super-family Eusiroidea is traditionally divided into 4 families, namely Calliopiidae, Eusiridae, Gammarellidae and Pontogeneiidae (De Broyer et al., 2007), but recent phylogenetic data suggests that the eusiroid clade forms a much broader assemblage (Englisch, 2001). Representatives are found in all oceans, inhabiting every trophic niches and a wide bathymetric range. With 216 described species in the Southern Ocean (i.e. about 24% o f its known amphipod fauna), eusiroids constitute a significant fraction of the Antarctic and sub-Antarctic biodiversity (De Broyer et al., 2007). The eusirid concept is very inadequately defined morphologically. The super-family form s a diverse assemblage of taxa o f gammaroid form , globally characterized by the loss or reduction of the accessory flagellum (Bousfield & Hendrycks 1995). The fam ily assignment of genera is often challenging, since there is no consistent set o f diagnostic characters defining most o f them. The 6 families form erly comprised in the non-validated taxon Iphimedioidea (Lowry & Myers 2000), as well as the Astyridae and Stilipedidae were recently considered as eusiroids. Moreover, previous 18S phylogenetic reconstructions revealed that the Astyridae, Iphimediidae, Epimeriidae and Pleustidae are nested w ithin the eusiroid clade (Englisch 2001). With the aim o f clarifying those major nomenclatural uncertainties and discussing the phylogenetic relationships, a deep phylogeny of the super-family Eusiroidea, including representatives o f all the aforementioned families, was reconstructed using two different gene fragm ents (28S rRNA and 1 8S rRNA). The analysis was performed at a global scale, mostly with Antarctic taxa, but also European and Arctic species. The study confirms that the Eusiroidea form s a must broader clade than claimed in classical literature. It revealed that most o f the traditionally delimited families are not m onophyletic and that a few taxa previously considered as eusiroids {Gammarellus, Cleippides) are in fact very ... |
author2 |
UCL - SST/ELI/ELIB - Biodiversity |
format |
Conference Object |
author |
Verheye, Marie Cédric d'Udekem d'Acoz VLIZ Young Scientists’ Day |
spellingShingle |
Verheye, Marie Cédric d'Udekem d'Acoz VLIZ Young Scientists’ Day Deep phylogeny of the amphipod super-family Eusiroidea |
author_facet |
Verheye, Marie Cédric d'Udekem d'Acoz VLIZ Young Scientists’ Day |
author_sort |
Verheye, Marie |
title |
Deep phylogeny of the amphipod super-family Eusiroidea |
title_short |
Deep phylogeny of the amphipod super-family Eusiroidea |
title_full |
Deep phylogeny of the amphipod super-family Eusiroidea |
title_fullStr |
Deep phylogeny of the amphipod super-family Eusiroidea |
title_full_unstemmed |
Deep phylogeny of the amphipod super-family Eusiroidea |
title_sort |
deep phylogeny of the amphipod super-family eusiroidea |
publisher |
Mees, J.; Seys, J. |
publishDate |
2014 |
url |
http://hdl.handle.net/2078.1/191976 |
long_lat |
ENVELOPE(-64.150,-64.150,-84.550,-84.550) ENVELOPE(170.033,170.033,-72.117,-72.117) |
geographic |
Antarctic Arctic Lowry Myers Southern Ocean The Antarctic |
geographic_facet |
Antarctic Arctic Lowry Myers Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Arctic Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Southern Ocean |
op_source |
Book of abstracts – VLIZ Young Scientists’ Day, Vol. VLIZ special publication, p. 123 (2014) |
op_relation |
boreal:191976 http://hdl.handle.net/2078.1/191976 urn:ISSN:1377-0950 |
_version_ |
1798835290380435456 |