High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc
DNA barcoding revealed four well-supported clades among amphipod specimens that keyed out to Epimeria georgiana Schellenberg, 1931, three clades with specimens from the southern Scotia Arc and one clade with specimens from the Weddell Sea. Detailed morphological investigations of sequenced specimens...
Published in: | Marine Biodiversity |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Springer
2012
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/18558/ |
id |
ftnerc:oai:nora.nerc.ac.uk:18558 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:18558 2023-05-15T13:45:12+02:00 High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc Lörz, Anne-Nina Smith, Peter Linse, Katrin Steinke, Dirk 2012 http://nora.nerc.ac.uk/id/eprint/18558/ unknown Springer Lörz, Anne-Nina; Smith, Peter; Linse, Katrin orcid:0000-0003-3477-3047 Steinke, Dirk. 2012 High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc. Marine Biodiversity, 42 (2). 137-159. https://doi.org/10.1007/s12526-011-0098-8 <https://doi.org/10.1007/s12526-011-0098-8> Publication - Article PeerReviewed 2012 ftnerc https://doi.org/10.1007/s12526-011-0098-8 2023-02-04T19:31:51Z DNA barcoding revealed four well-supported clades among amphipod specimens that keyed out to Epimeria georgiana Schellenberg, 1931, three clades with specimens from the southern Scotia Arc and one clade with specimens from the Weddell Sea. Detailed morphological investigations of sequenced specimens were conducted, through light and scanning electron microscopy. High magnification (500–2,000 fold) revealed features such as comb-scales on the first antenna and trich bearing pits on the fourth coxal plate to be similar for all specimens in the four clades. Consistent microstructure character differences in the Weddell Sea specimens combined with high genetic distances (COI divergence>20%) allowed the description of Epimeria angelikae, a species new to science. Specimens of E. georgiana in the other three COI clades from the Scotia Arc were morphologically indistinguishable. Representative specimens of clade A are also illustrated in detail. Our results on the high genetic divergences in epimeriid amphipods support the theory of the southern Scotia Arc being a centre of Antarctic diversification. Article in Journal/Newspaper Antarc* Antarctic Weddell Sea Natural Environment Research Council: NERC Open Research Archive Antarctic Weddell Sea Weddell Marine Biodiversity 42 2 137 159 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
DNA barcoding revealed four well-supported clades among amphipod specimens that keyed out to Epimeria georgiana Schellenberg, 1931, three clades with specimens from the southern Scotia Arc and one clade with specimens from the Weddell Sea. Detailed morphological investigations of sequenced specimens were conducted, through light and scanning electron microscopy. High magnification (500–2,000 fold) revealed features such as comb-scales on the first antenna and trich bearing pits on the fourth coxal plate to be similar for all specimens in the four clades. Consistent microstructure character differences in the Weddell Sea specimens combined with high genetic distances (COI divergence>20%) allowed the description of Epimeria angelikae, a species new to science. Specimens of E. georgiana in the other three COI clades from the Scotia Arc were morphologically indistinguishable. Representative specimens of clade A are also illustrated in detail. Our results on the high genetic divergences in epimeriid amphipods support the theory of the southern Scotia Arc being a centre of Antarctic diversification. |
format |
Article in Journal/Newspaper |
author |
Lörz, Anne-Nina Smith, Peter Linse, Katrin Steinke, Dirk |
spellingShingle |
Lörz, Anne-Nina Smith, Peter Linse, Katrin Steinke, Dirk High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
author_facet |
Lörz, Anne-Nina Smith, Peter Linse, Katrin Steinke, Dirk |
author_sort |
Lörz, Anne-Nina |
title |
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
title_short |
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
title_full |
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
title_fullStr |
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
title_full_unstemmed |
High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc |
title_sort |
high genetic diversity within epimeria georgiana (amphipoda) from the southern scotia arc |
publisher |
Springer |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/18558/ |
geographic |
Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_relation |
Lörz, Anne-Nina; Smith, Peter; Linse, Katrin orcid:0000-0003-3477-3047 Steinke, Dirk. 2012 High genetic diversity within Epimeria georgiana (Amphipoda) from the southern Scotia Arc. Marine Biodiversity, 42 (2). 137-159. https://doi.org/10.1007/s12526-011-0098-8 <https://doi.org/10.1007/s12526-011-0098-8> |
op_doi |
https://doi.org/10.1007/s12526-011-0098-8 |
container_title |
Marine Biodiversity |
container_volume |
42 |
container_issue |
2 |
container_start_page |
137 |
op_container_end_page |
159 |
_version_ |
1766216712229748736 |