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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ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/321 2023-05-15T13:41:51+02:00 Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) Especiación críptica en el isópodo gigante antártico Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae). Held, Christoph Wägele, Johann Wolfgang 2005-12-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 https://doi.org/10.3989/scimar.2005.69s2175 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321/321 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 doi:10.3989/scimar.2005.69s2175 Copyright (c) 2005 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 69 No. S2 (2005); 175-181 Scientia Marina; Vol. 69 Núm. S2 (2005); 175-181 1886-8134 0214-8358 10.3989/scimar.2005.69s2 sibling species molecular systematics biogeography Antarctic benthos especies hermanas sistemática molecular biogeografía bentos antártico info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2005 ftjscientiamarin https://doi.org/10.3989/scimar.2005.69s2175 https://doi.org/10.3989/scimar.2005.69s2 2022-03-20T16:30:24Z 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. En una investigación sobre diversidad genética intra-específica se registró variabilidad en el gen mitocondrial LSU (16S) de 23 especímenes del isópodo bentónico antártico Glyptonotus antarcticus de tres áreas antárticas. Se encontraron once haplotipos mitocondriales únicos, dos en la Península Antártica (AP), dos en el Mar de Ross (RS) y siete en el Mar de Weddell (EWS). La variación media de los haplotipos dentro de las áreas (AP, RS, EWS) fue un orden de magnitud menor que entre ellas. Sin embargo, en el EWS coexisten dos haplotipos altamente diferenciados. Estos cuatro grupos de haplotipos pueden representar especies crípticas reproductivamente aisladas, más que una única especie como se asumía anteriormente. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula antarcticus Antártica Mar de Ross Mar de Weddell Ross Sea Weddell Sea Scientia Marina (E-Journal) Antarctic The Antarctic Antarctic Peninsula Weddell Sea Ross Sea Weddell mar de Weddell ENVELOPE(-36.000,-36.000,-54.601,-54.601) Scientia Marina 69 S2 175 181 |
institution |
Open Polar |
collection |
Scientia Marina (E-Journal) |
op_collection_id |
ftjscientiamarin |
language |
English |
topic |
sibling species molecular systematics biogeography Antarctic benthos especies hermanas sistemática molecular biogeografía bentos antártico |
spellingShingle |
sibling species molecular systematics biogeography Antarctic benthos especies hermanas sistemática molecular biogeografía bentos antártico Held, Christoph Wägele, Johann Wolfgang Cryptic speciation in the giant Antarctic isopod Glyptonotus antarcticus (Isopoda, Valvifera, Chaetiliidae) |
topic_facet |
sibling species molecular systematics biogeography Antarctic benthos especies hermanas sistemática molecular biogeografía bentos antártico |
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. En una investigación sobre diversidad genética intra-específica se registró variabilidad en el gen mitocondrial LSU (16S) de 23 especímenes del isópodo bentónico antártico Glyptonotus antarcticus de tres áreas antárticas. Se encontraron once haplotipos mitocondriales únicos, dos en la Península Antártica (AP), dos en el Mar de Ross (RS) y siete en el Mar de Weddell (EWS). La variación media de los haplotipos dentro de las áreas (AP, RS, EWS) fue un orden de magnitud menor que entre ellas. Sin embargo, en el EWS coexisten dos haplotipos altamente diferenciados. Estos cuatro grupos de haplotipos pueden representar especies crípticas reproductivamente aisladas, más que una única especie como se asumía anteriormente. |
format |
Article in Journal/Newspaper |
author |
Held, Christoph Wägele, Johann Wolfgang |
author_facet |
Held, Christoph Wägele, Johann Wolfgang |
author_sort |
Held, Christoph |
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://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 https://doi.org/10.3989/scimar.2005.69s2175 |
long_lat |
ENVELOPE(-36.000,-36.000,-54.601,-54.601) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Ross Sea Weddell mar de Weddell |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Ross Sea Weddell mar de Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula antarcticus Antártica Mar de Ross Mar de Weddell Ross Sea Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula antarcticus Antártica Mar de Ross Mar de Weddell Ross Sea Weddell Sea |
op_source |
Scientia Marina; Vol. 69 No. S2 (2005); 175-181 Scientia Marina; Vol. 69 Núm. S2 (2005); 175-181 1886-8134 0214-8358 10.3989/scimar.2005.69s2 |
op_relation |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321/321 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/321 doi:10.3989/scimar.2005.69s2175 |
op_rights |
Copyright (c) 2005 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3989/scimar.2005.69s2175 https://doi.org/10.3989/scimar.2005.69s2 |
container_title |
Scientia Marina |
container_volume |
69 |
container_issue |
S2 |
container_start_page |
175 |
op_container_end_page |
181 |
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1766159187647135744 |