Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae)
The genus Glyptonotus is most commonly regarded as monospecific, with Glyptonotus antarcticus Eights 1852 being its only constituent. Two more forms (G. acutus, G. antarcticus var. obtusus) that had been described based on morphological evidence have received little attention in the literature, thou...
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ftdoajarticles:oai:doaj.org/article:b942acdda8c44baf964182327ae1851d 2023-05-15T13:52:02+02:00 Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) Christoph Held Johann Wolfgang Wägele 2005-12-01T00:00:00Z https://doi.org/10.3989/scimar.2005.69s2175 https://doaj.org/article/b942acdda8c44baf964182327ae1851d EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2005.69s2175 https://doaj.org/article/b942acdda8c44baf964182327ae1851d Scientia Marina, Vol 69, Iss S2, Pp 175-181 (2005) sibling species molecular systematics biogeography antarctic benthos Aquaculture. Fisheries. Angling SH1-691 article 2005 ftdoajarticles https://doi.org/10.3989/scimar.2005.69s2175 2022-12-31T07:02:59Z The genus Glyptonotus is most commonly regarded as monospecific, with Glyptonotus antarcticus Eights 1852 being its only constituent. Two more forms (G. acutus, G. antarcticus var. obtusus) that had been described based on morphological evidence have received little attention in the literature, though no formal attempt to evaluate their taxonomic status has been undertaken. In a survey of within-species genetic diversity, 23 specimens of the benthic Antarctic isopod Glyptonotus antarcticus from three sampling areas around the Antarctic had a high genetic variability in their mitochondrial LSU (16S) gene. Eleven unique mitochondrial haplotypes were found, two at the Antarctic Peninsula (AP), two in the Ross Sea (RS) and seven in the Eastern Weddell Sea (EWS). Average haplotype variation within sampling areas (AP, RS, EWS) was one order of magnitude less than between sampling areas. In the EWS, however, two highly differentiated haplotypes co-exist. These four groups of haplotypes may represent cryptic, but reproductively isolated species rather than a single species. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula antarcticus Ross Sea Weddell Sea Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula Ross Sea The Antarctic Weddell Weddell Sea Scientia Marina 69 S2 175 181 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
sibling species molecular systematics biogeography antarctic benthos Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
sibling species molecular systematics biogeography antarctic benthos Aquaculture. Fisheries. Angling SH1-691 Christoph Held Johann Wolfgang Wägele Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
topic_facet |
sibling species molecular systematics biogeography antarctic benthos Aquaculture. Fisheries. Angling SH1-691 |
description |
The genus Glyptonotus is most commonly regarded as monospecific, with Glyptonotus antarcticus Eights 1852 being its only constituent. Two more forms (G. acutus, G. antarcticus var. obtusus) that had been described based on morphological evidence have received little attention in the literature, though no formal attempt to evaluate their taxonomic status has been undertaken. In a survey of within-species genetic diversity, 23 specimens of the benthic Antarctic isopod Glyptonotus antarcticus from three sampling areas around the Antarctic had a high genetic variability in their mitochondrial LSU (16S) gene. Eleven unique mitochondrial haplotypes were found, two at the Antarctic Peninsula (AP), two in the Ross Sea (RS) and seven in the Eastern Weddell Sea (EWS). Average haplotype variation within sampling areas (AP, RS, EWS) was one order of magnitude less than between sampling areas. In the EWS, however, two highly differentiated haplotypes co-exist. These four groups of haplotypes may represent cryptic, but reproductively isolated species rather than a single species. |
format |
Article in Journal/Newspaper |
author |
Christoph Held Johann Wolfgang Wägele |
author_facet |
Christoph Held Johann Wolfgang Wägele |
author_sort |
Christoph Held |
title |
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
title_short |
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
title_full |
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
title_fullStr |
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
title_full_unstemmed |
Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
title_sort |
cryptic speciation in the giant antarctic isopod glyptonotus antarcticus (isopoda, valvifera, chaetiliidae) |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2005 |
url |
https://doi.org/10.3989/scimar.2005.69s2175 https://doaj.org/article/b942acdda8c44baf964182327ae1851d |
geographic |
Antarctic Antarctic Peninsula Ross Sea The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Ross Sea The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula antarcticus Ross Sea Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula antarcticus Ross Sea Weddell Sea |
op_source |
Scientia Marina, Vol 69, Iss S2, Pp 175-181 (2005) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.2005.69s2175 https://doaj.org/article/b942acdda8c44baf964182327ae1851d |
op_doi |
https://doi.org/10.3989/scimar.2005.69s2175 |
container_title |
Scientia Marina |
container_volume |
69 |
container_issue |
S2 |
container_start_page |
175 |
op_container_end_page |
181 |
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1766256224014172160 |