An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae)
Gomphiocephalus hodgsoni Carpenter was only the second collembolon dagger to be described from the Antarctic continent. It was collected first in 1902 from Granite Harbour, southern Victoria Land, Eastern Antarctica, by the British National Antarctic Expedition (1901-1904). Since then several studie...
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ftfederationuniv:vital:3916 2023-05-15T13:58:40+02:00 An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) Greenslade, Penelope Stevens, Mark Torricelli, Giulia D'Haese, Cyrille 2011 http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/53994 unknown Systematic entomology Vol. 36, no. 2 (2011), p. 223-240 http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/53994 vital:3916 ISSN:0307-6970 Copyright Wiley-Blackwell Open Access This metadata is freely available under a CCO license 0603 Evolutionary Biology 0608 Zoology Southern Victoria Land Optimization alignment Fluctuating asymmetry Sequence alignment Glacial refugia Springtails Text Journal article 2011 ftfederationuniv 2022-12-01T19:07:25Z Gomphiocephalus hodgsoni Carpenter was only the second collembolon dagger to be described from the Antarctic continent. It was collected first in 1902 from Granite Harbour, southern Victoria Land, Eastern Antarctica, by the British National Antarctic Expedition (1901-1904). Since then several studies have investigated the distribution, ecology, ecophysiology and molecular composition of the species. Despite two morphological redescriptions and an absence of detailed evolutionary phylogenetic studies, the genus Gomphiocephalus was recently reduced to a subgenus of Schoettella Schaffer. Here, we redescribe the species in detail and use morphological and molecular (cytochrome c oxidase subunit I and 28S) data to indicate its generic relationships within Hypogastruridae. Characters of Gomphiocephalus do not conform with those of any extant genus in the family, including Schoettella. In addition, the only Schoettella species described from the southern hemisphere, Schoettella subcorta Salmon, is shown here to belong in the genus Xenylla. Furthermore, molecular data indicates the genus has no close relationship to any other in Poduromorpha, and in particular Hypogastruridae. Therefore, we restore Gomphiocephalus to generic status. Our results reinforce the already recognized high level of endemism in the Antarctic fauna at both species and generic levels, and emphasise the necessity of using both morphological and molecular data in determining the systematics and evolutionary relationships of the fauna. Article in Journal/Newspaper Antarc* Antarctic Antarctica Gomphiocephalus hodgsoni Victoria Land Federation University Australia: Federation ResearchOnline Antarctic The Antarctic Victoria Land Granite Harbour ENVELOPE(162.733,162.733,-76.883,-76.883) |
institution |
Open Polar |
collection |
Federation University Australia: Federation ResearchOnline |
op_collection_id |
ftfederationuniv |
language |
unknown |
topic |
0603 Evolutionary Biology 0608 Zoology Southern Victoria Land Optimization alignment Fluctuating asymmetry Sequence alignment Glacial refugia Springtails |
spellingShingle |
0603 Evolutionary Biology 0608 Zoology Southern Victoria Land Optimization alignment Fluctuating asymmetry Sequence alignment Glacial refugia Springtails Greenslade, Penelope Stevens, Mark Torricelli, Giulia D'Haese, Cyrille An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
topic_facet |
0603 Evolutionary Biology 0608 Zoology Southern Victoria Land Optimization alignment Fluctuating asymmetry Sequence alignment Glacial refugia Springtails |
description |
Gomphiocephalus hodgsoni Carpenter was only the second collembolon dagger to be described from the Antarctic continent. It was collected first in 1902 from Granite Harbour, southern Victoria Land, Eastern Antarctica, by the British National Antarctic Expedition (1901-1904). Since then several studies have investigated the distribution, ecology, ecophysiology and molecular composition of the species. Despite two morphological redescriptions and an absence of detailed evolutionary phylogenetic studies, the genus Gomphiocephalus was recently reduced to a subgenus of Schoettella Schaffer. Here, we redescribe the species in detail and use morphological and molecular (cytochrome c oxidase subunit I and 28S) data to indicate its generic relationships within Hypogastruridae. Characters of Gomphiocephalus do not conform with those of any extant genus in the family, including Schoettella. In addition, the only Schoettella species described from the southern hemisphere, Schoettella subcorta Salmon, is shown here to belong in the genus Xenylla. Furthermore, molecular data indicates the genus has no close relationship to any other in Poduromorpha, and in particular Hypogastruridae. Therefore, we restore Gomphiocephalus to generic status. Our results reinforce the already recognized high level of endemism in the Antarctic fauna at both species and generic levels, and emphasise the necessity of using both morphological and molecular data in determining the systematics and evolutionary relationships of the fauna. |
format |
Article in Journal/Newspaper |
author |
Greenslade, Penelope Stevens, Mark Torricelli, Giulia D'Haese, Cyrille |
author_facet |
Greenslade, Penelope Stevens, Mark Torricelli, Giulia D'Haese, Cyrille |
author_sort |
Greenslade, Penelope |
title |
An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
title_short |
An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
title_full |
An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
title_fullStr |
An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
title_full_unstemmed |
An ancient Antarctic endemic genus restored: morphological and molecular support for Gomphiocephalus hodgsoni (Collembola: Hypogastruridae) |
title_sort |
ancient antarctic endemic genus restored: morphological and molecular support for gomphiocephalus hodgsoni (collembola: hypogastruridae) |
publishDate |
2011 |
url |
http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/53994 |
long_lat |
ENVELOPE(162.733,162.733,-76.883,-76.883) |
geographic |
Antarctic The Antarctic Victoria Land Granite Harbour |
geographic_facet |
Antarctic The Antarctic Victoria Land Granite Harbour |
genre |
Antarc* Antarctic Antarctica Gomphiocephalus hodgsoni Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Gomphiocephalus hodgsoni Victoria Land |
op_relation |
Systematic entomology Vol. 36, no. 2 (2011), p. 223-240 http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/53994 vital:3916 ISSN:0307-6970 |
op_rights |
Copyright Wiley-Blackwell Open Access This metadata is freely available under a CCO license |
_version_ |
1766267019337924608 |