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...
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Taylor & Francis
2019
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Online Access: | https://dx.doi.org/10.6084/m9.figshare.4801603.v2 https://tandf.figshare.com/articles/dataset/Molecular_and_morphological_characterization_of_the_i_Achnanthidium_minutissimum_i_complex_Bacillariophyta_in_Petuniabukta_Spitsbergen_High_Arctic_including_the_description_of_i_A_digitatum_i_sp_nov_/4801603/2 |
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ftdatacite:10.6084/m9.figshare.4801603.v2 2023-05-15T13:50:33+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 Vijver, Bart Van De Kateřina Kopalova 2019 https://dx.doi.org/10.6084/m9.figshare.4801603.v2 https://tandf.figshare.com/articles/dataset/Molecular_and_morphological_characterization_of_the_i_Achnanthidium_minutissimum_i_complex_Bacillariophyta_in_Petuniabukta_Spitsbergen_High_Arctic_including_the_description_of_i_A_digitatum_i_sp_nov_/4801603/2 unknown Taylor & Francis https://dx.doi.org/10.1080/09670262.2017.1283540 https://dx.doi.org/10.6084/m9.figshare.4801603 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified 80699 Information Systems not elsewhere classified FOS Computer and information sciences Marine Biology dataset Dataset 2019 ftdatacite https://doi.org/10.6084/m9.figshare.4801603.v2 https://doi.org/10.1080/09670262.2017.1283540 https://doi.org/10.6084/m9.figshare.4801603 2021-11-05T12:55:41Z 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 rbc L, 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. Dataset Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Arctic Billefjorden ENVELOPE(16.417,16.417,78.563,78.563) Canada Petuniabukta ENVELOPE(16.532,16.532,78.687,78.687) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified 80699 Information Systems not elsewhere classified FOS Computer and information sciences Marine Biology |
spellingShingle |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified 80699 Information Systems not elsewhere classified FOS Computer and information sciences Marine Biology Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B. Vyverman, Wim Vijver, Bart Van De Kateřina Kopalova 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 |
Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 69999 Biological Sciences not elsewhere classified 80699 Information Systems not elsewhere classified FOS Computer and information sciences Marine Biology |
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 rbc L, 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 |
Dataset |
author |
Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B. Vyverman, Wim Vijver, Bart Van De Kateřina Kopalova |
author_facet |
Pinseel, Eveline Vanormelingen, Pieter Hamilton, Paul B. Vyverman, Wim Vijver, Bart Van De Kateřina Kopalova |
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. |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.4801603.v2 https://tandf.figshare.com/articles/dataset/Molecular_and_morphological_characterization_of_the_i_Achnanthidium_minutissimum_i_complex_Bacillariophyta_in_Petuniabukta_Spitsbergen_High_Arctic_including_the_description_of_i_A_digitatum_i_sp_nov_/4801603/2 |
long_lat |
ENVELOPE(16.417,16.417,78.563,78.563) ENVELOPE(16.532,16.532,78.687,78.687) |
geographic |
Arctic Billefjorden Canada Petuniabukta |
geographic_facet |
Arctic Billefjorden Canada Petuniabukta |
genre |
Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen |
genre_facet |
Antarc* Antarctica Arctic Billefjorden Marion Island Spitsbergen |
op_relation |
https://dx.doi.org/10.1080/09670262.2017.1283540 https://dx.doi.org/10.6084/m9.figshare.4801603 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.4801603.v2 https://doi.org/10.1080/09670262.2017.1283540 https://doi.org/10.6084/m9.figshare.4801603 |
_version_ |
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