Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica)
Allogromiids are organic-walled or agglutinated, single-chambered Foraminifera, common in deep-sea and polar benthic communities. The simple forms and paucity of distinctive features make allogromiid identification difficult by traditional means. Molecular phylogenetic methods offer alternative tool...
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ftunivgeneve:oai:unige.ch:aou:unige:114105 2023-10-01T03:52:10+02:00 Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) Pawlowski, Jan Wojciech Fahrni, José Brykczynska, Urszula Habura, Andrea Bowser, Samuel S. 2002 https://archive-ouverte.unige.ch/unige:114105 eng eng https://archive-ouverte.unige.ch/unige:114105 unige:114105 info:eu-repo/semantics/openAccess ISSN: 0722-4060 Polar Biology, vol. 25, no. 2 (2002) p. 96-105 info:eu-repo/classification/ddc/590 info:eu-repo/semantics/article Text Article scientifique info:eu-repo/semantics/publishedVersion 2002 ftunivgeneve 2023-09-07T07:49:04Z Allogromiids are organic-walled or agglutinated, single-chambered Foraminifera, common in deep-sea and polar benthic communities. The simple forms and paucity of distinctive features make allogromiid identification difficult by traditional means. Molecular phylogenetic methods offer alternative tools for species identification and are used here to investigate allogromiid diversity. We obtained 135 partial small-subunit ribosomal DNA sequences of allogromiids collected in Explorers Cove, McMurdo Sound, Antarctica. In contrast to the 27 morphotypes identified, phylogenetic analysis revealed 49 molecular types (considered separate species) that differ by more than 5% of sequence divergence. The 49 genetic types form 28 molecular supra-groups that differ by more than 20% and probably represent distinct genera or families. Large genetic distances separating the molecular types indicate unexpectedly high taxonomic diversity. Comparison of our data with sequences of non-Antarctic allogromiids suggests that Explorers Cove species might be endemic and only distantly related to comparable northern hemisphere fauna. Article in Journal/Newspaper Antarc* Antarctic Antarctica McMurdo Sound Polar Biology Université de Genève: Archive ouverte UNIGE Antarctic McMurdo Sound Explorers Cove ENVELOPE(163.583,163.583,-77.567,-77.567) |
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Université de Genève: Archive ouverte UNIGE |
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ftunivgeneve |
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English |
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info:eu-repo/classification/ddc/590 Pawlowski, Jan Wojciech Fahrni, José Brykczynska, Urszula Habura, Andrea Bowser, Samuel S. Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
topic_facet |
info:eu-repo/classification/ddc/590 |
description |
Allogromiids are organic-walled or agglutinated, single-chambered Foraminifera, common in deep-sea and polar benthic communities. The simple forms and paucity of distinctive features make allogromiid identification difficult by traditional means. Molecular phylogenetic methods offer alternative tools for species identification and are used here to investigate allogromiid diversity. We obtained 135 partial small-subunit ribosomal DNA sequences of allogromiids collected in Explorers Cove, McMurdo Sound, Antarctica. In contrast to the 27 morphotypes identified, phylogenetic analysis revealed 49 molecular types (considered separate species) that differ by more than 5% of sequence divergence. The 49 genetic types form 28 molecular supra-groups that differ by more than 20% and probably represent distinct genera or families. Large genetic distances separating the molecular types indicate unexpectedly high taxonomic diversity. Comparison of our data with sequences of non-Antarctic allogromiids suggests that Explorers Cove species might be endemic and only distantly related to comparable northern hemisphere fauna. |
format |
Article in Journal/Newspaper |
author |
Pawlowski, Jan Wojciech Fahrni, José Brykczynska, Urszula Habura, Andrea Bowser, Samuel S. |
author_facet |
Pawlowski, Jan Wojciech Fahrni, José Brykczynska, Urszula Habura, Andrea Bowser, Samuel S. |
author_sort |
Pawlowski, Jan Wojciech |
title |
Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
title_short |
Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
title_full |
Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
title_fullStr |
Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
title_full_unstemmed |
Molecular data reveal high taxonomic diversity of allogromiid Foraminifera in Explorers Cove (McMurdo Sound, Antarctica) |
title_sort |
molecular data reveal high taxonomic diversity of allogromiid foraminifera in explorers cove (mcmurdo sound, antarctica) |
publishDate |
2002 |
url |
https://archive-ouverte.unige.ch/unige:114105 |
long_lat |
ENVELOPE(163.583,163.583,-77.567,-77.567) |
geographic |
Antarctic McMurdo Sound Explorers Cove |
geographic_facet |
Antarctic McMurdo Sound Explorers Cove |
genre |
Antarc* Antarctic Antarctica McMurdo Sound Polar Biology |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound Polar Biology |
op_source |
ISSN: 0722-4060 Polar Biology, vol. 25, no. 2 (2002) p. 96-105 |
op_relation |
https://archive-ouverte.unige.ch/unige:114105 unige:114105 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1778517890297757696 |