Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov.
Recent morphology-based investigations of freshwater Arctic diatoms suggest that many species remain to be discovered, reflecting a unique polar flora. During a survey of the freshwater diatom flora of northern Billefjorden, including the Petuniabukta fjord region (Spitsbergen), several morphodemes...
Published in: | European Journal of Phycology |
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ftunivgent:oai:archive.ugent.be:8517915 2023-06-11T04:05:54+02:00 Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B Vyverman, Wim Van de Vijver, Bart Kopalova, Kateřina 2017 application/pdf https://biblio.ugent.be/publication/8517915 http://hdl.handle.net/1854/LU-8517915 https://doi.org/10.1080/09670262.2017.1283540 https://biblio.ugent.be/publication/8517915/file/8564686 eng eng https://biblio.ugent.be/publication/8517915 http://hdl.handle.net/1854/LU-8517915 http://dx.doi.org/10.1080/09670262.2017.1283540 https://biblio.ugent.be/publication/8517915/file/8564686 No license (in copyright) info:eu-repo/semantics/restrictedAccess EUROPEAN JOURNAL OF PHYCOLOGY ISSN: 0967-0262 ISSN: 1469-4433 Biology and Life Sciences Achnanthidium Arctic Region 28S molecular phylogeny new species rbcL Spitsbergen taxonomy 18S valve morphology SPECIES COMPLEX GENUS ACHNANTHIDIUM CHEMICAL LIMNOLOGY NORTH-AMERICA COMB. NOV DIATOMS PHYLOGENY ECOLOGY FRESH DNA journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivgent https://doi.org/10.1080/09670262.2017.1283540 2023-05-10T22:20:38Z Recent morphology-based investigations of freshwater Arctic diatoms suggest that many species remain to be discovered, reflecting a unique polar flora. During a survey of the freshwater diatom flora of northern Billefjorden, including the Petuniabukta fjord region (Spitsbergen), several morphodemes belonging to the Achnanthidium minutissimum species complex were recorded. Molecular phylogenies based on rbcL, 28S and 18S sequences, including single cells from Canada and strains from Marion Island (sub-Antarctica) and GenBank revealed the presence of 12 distinct A. minutissimum complex lineages, of which three contained strains from Spitsbergen. One Arctic lineage is described as a new species. Achnanthidium digitatum sp. nov. is morphologically characterized by narrow, linear to only slightly lanceolate valves and usually two areolae per stria. The two remaining Arctic lineages are in need of a more complete morphological and molecular comparison with other representatives of the A. minutissimum complex to clarify their taxonomic identity. It is argued that implementation of molecular data in the taxonomy of Achnanthidium will be essential to solve the taxonomic problems associated with this group, eventually resulting in a better understanding of the biogeography and niche differentiation of different species belonging to the A. minutissimum complex. Ideally, this should be based on more variable genes than the currently widely used 18S, which does not have a species level resolution in the A. minutissimum complex. Article in Journal/Newspaper Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen Ghent University Academic Bibliography Arctic Canada Billefjorden ENVELOPE(16.417,16.417,78.563,78.563) Petuniabukta ENVELOPE(16.532,16.532,78.687,78.687) European Journal of Phycology 52 3 264 280 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Achnanthidium Arctic Region 28S molecular phylogeny new species rbcL Spitsbergen taxonomy 18S valve morphology SPECIES COMPLEX GENUS ACHNANTHIDIUM CHEMICAL LIMNOLOGY NORTH-AMERICA COMB. NOV DIATOMS PHYLOGENY ECOLOGY FRESH DNA |
spellingShingle |
Biology and Life Sciences Achnanthidium Arctic Region 28S molecular phylogeny new species rbcL Spitsbergen taxonomy 18S valve morphology SPECIES COMPLEX GENUS ACHNANTHIDIUM CHEMICAL LIMNOLOGY NORTH-AMERICA COMB. NOV DIATOMS PHYLOGENY ECOLOGY FRESH DNA Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B Vyverman, Wim Van de Vijver, Bart Kopalova, Kateřina Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
topic_facet |
Biology and Life Sciences Achnanthidium Arctic Region 28S molecular phylogeny new species rbcL Spitsbergen taxonomy 18S valve morphology SPECIES COMPLEX GENUS ACHNANTHIDIUM CHEMICAL LIMNOLOGY NORTH-AMERICA COMB. NOV DIATOMS PHYLOGENY ECOLOGY FRESH DNA |
description |
Recent morphology-based investigations of freshwater Arctic diatoms suggest that many species remain to be discovered, reflecting a unique polar flora. During a survey of the freshwater diatom flora of northern Billefjorden, including the Petuniabukta fjord region (Spitsbergen), several morphodemes belonging to the Achnanthidium minutissimum species complex were recorded. Molecular phylogenies based on rbcL, 28S and 18S sequences, including single cells from Canada and strains from Marion Island (sub-Antarctica) and GenBank revealed the presence of 12 distinct A. minutissimum complex lineages, of which three contained strains from Spitsbergen. One Arctic lineage is described as a new species. Achnanthidium digitatum sp. nov. is morphologically characterized by narrow, linear to only slightly lanceolate valves and usually two areolae per stria. The two remaining Arctic lineages are in need of a more complete morphological and molecular comparison with other representatives of the A. minutissimum complex to clarify their taxonomic identity. It is argued that implementation of molecular data in the taxonomy of Achnanthidium will be essential to solve the taxonomic problems associated with this group, eventually resulting in a better understanding of the biogeography and niche differentiation of different species belonging to the A. minutissimum complex. Ideally, this should be based on more variable genes than the currently widely used 18S, which does not have a species level resolution in the A. minutissimum complex. |
format |
Article in Journal/Newspaper |
author |
Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B Vyverman, Wim Van de Vijver, Bart Kopalova, Kateřina |
author_facet |
Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B Vyverman, Wim Van de Vijver, Bart Kopalova, Kateřina |
author_sort |
Pinseel, Eveline |
title |
Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
title_short |
Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
title_full |
Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
title_fullStr |
Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
title_full_unstemmed |
Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. |
title_sort |
molecular and morphological characterization of the achnanthidium minutissimum complex (bacillariophyta) in petuniabukta (spitsbergen, high arctic) including the description of a. digitatum sp. nov. |
publishDate |
2017 |
url |
https://biblio.ugent.be/publication/8517915 http://hdl.handle.net/1854/LU-8517915 https://doi.org/10.1080/09670262.2017.1283540 https://biblio.ugent.be/publication/8517915/file/8564686 |
long_lat |
ENVELOPE(16.417,16.417,78.563,78.563) ENVELOPE(16.532,16.532,78.687,78.687) |
geographic |
Arctic Canada Billefjorden Petuniabukta |
geographic_facet |
Arctic Canada Billefjorden Petuniabukta |
genre |
Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen |
genre_facet |
Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen |
op_source |
EUROPEAN JOURNAL OF PHYCOLOGY ISSN: 0967-0262 ISSN: 1469-4433 |
op_relation |
https://biblio.ugent.be/publication/8517915 http://hdl.handle.net/1854/LU-8517915 http://dx.doi.org/10.1080/09670262.2017.1283540 https://biblio.ugent.be/publication/8517915/file/8564686 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/09670262.2017.1283540 |
container_title |
European Journal of Phycology |
container_volume |
52 |
container_issue |
3 |
container_start_page |
264 |
op_container_end_page |
280 |
_version_ |
1768377588013596672 |