The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic
Genetic characterisation (SSU rRNA genotyping) and Scanning Electron Microscope (SEM) imaging of individual tests were used in tandem to determine the modern species richness of the foraminiferal family Elphidiidae (Elphidium, Haynesina and related genera) across the Northeast Atlantic shelf biomes....
Published in: | Marine Micropaleontology |
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Main Authors: | , , , , , , , , , , , |
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2016
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Online Access: | https://pure.au.dk/portal/da/publications/the-genetic-diversity-phylogeography-and-morphology-of-elphidiidae-foraminifera-in-the-northeast-atlantic(a734548a-70dd-4e99-b337-908ec0cef7a4).html https://doi.org/10.1016/j.marmicro.2016.09.001 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/a734548a-70dd-4e99-b337-908ec0cef7a4 2023-05-15T15:15:49+02:00 The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic Darling, Kate F. Schweizer, Magali Knudsen, Karen Luise Evans, Katharine M. Bird, Clare Roberts, Angela Filipsson, Helena L. Kim, Jung Hyun Gudmundsson, Gudmundur Wade, Christopher M. Sayer, Martin D J Austin, William E N 2016-12-01 https://pure.au.dk/portal/da/publications/the-genetic-diversity-phylogeography-and-morphology-of-elphidiidae-foraminifera-in-the-northeast-atlantic(a734548a-70dd-4e99-b337-908ec0cef7a4).html https://doi.org/10.1016/j.marmicro.2016.09.001 eng eng info:eu-repo/semantics/restrictedAccess Darling , K F , Schweizer , M , Knudsen , K L , Evans , K M , Bird , C , Roberts , A , Filipsson , H L , Kim , J H , Gudmundsson , G , Wade , C M , Sayer , M D J & Austin , W E N 2016 , ' The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic ' , Marine Micropaleontology , vol. 129 , pp. 1-23 . https://doi.org/10.1016/j.marmicro.2016.09.001 Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy article 2016 ftuniaarhuspubl https://doi.org/10.1016/j.marmicro.2016.09.001 2023-02-01T23:55:08Z Genetic characterisation (SSU rRNA genotyping) and Scanning Electron Microscope (SEM) imaging of individual tests were used in tandem to determine the modern species richness of the foraminiferal family Elphidiidae (Elphidium, Haynesina and related genera) across the Northeast Atlantic shelf biomes. Specimens were collected at 25 locations from the High Arctic to Iberia, and a total of 1013 individual specimens were successfully SEM imaged and genotyped. Phylogenetic analyses were carried out in combination with 28 other elphidiid sequences from GenBank and seventeen distinct elphidiid genetic types were identified within the sample set, seven being sequenced for the first time. Genetic types cluster into seven main clades which largely represent their general morphological character. Differences between genetic types at the genetic, morphological and biogeographic levels are indicative of species level distinction. Their biogeographic distributions, in combination with elphidiid SSU sequences from GenBank and high resolution images from the literature show that each of them exhibits species-specific rather than clade-specific biogeographies. Due to taxonomic uncertainty and divergent taxonomic concepts between schools, we believe that morphospecies names should not be placed onto molecular phylogenies unless both the morphology and genetic type have been linked to the formally named holotype, or equivalent. Based on strict morphological criteria, we advocate using only a three-stage approach to taxonomy for practical application in micropalaeontological studies. It comprises genotyping, the production of a formal morphological description of the SEM images associated with the genetic type and then the allocation of the most appropriate taxonomic name by comparison with the formal type description. Using this approach, we were able to apply taxonomic names to fifteen genetic types. One of the remaining two may be potentially cryptic, and one is undescribed in the literature. In general, the phylogeographic ... Article in Journal/Newspaper Arctic Foraminifera* Northeast Atlantic Aarhus University: Research Arctic Marine Micropaleontology 129 1 23 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy |
spellingShingle |
Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy Darling, Kate F. Schweizer, Magali Knudsen, Karen Luise Evans, Katharine M. Bird, Clare Roberts, Angela Filipsson, Helena L. Kim, Jung Hyun Gudmundsson, Gudmundur Wade, Christopher M. Sayer, Martin D J Austin, William E N The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
topic_facet |
Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy |
description |
Genetic characterisation (SSU rRNA genotyping) and Scanning Electron Microscope (SEM) imaging of individual tests were used in tandem to determine the modern species richness of the foraminiferal family Elphidiidae (Elphidium, Haynesina and related genera) across the Northeast Atlantic shelf biomes. Specimens were collected at 25 locations from the High Arctic to Iberia, and a total of 1013 individual specimens were successfully SEM imaged and genotyped. Phylogenetic analyses were carried out in combination with 28 other elphidiid sequences from GenBank and seventeen distinct elphidiid genetic types were identified within the sample set, seven being sequenced for the first time. Genetic types cluster into seven main clades which largely represent their general morphological character. Differences between genetic types at the genetic, morphological and biogeographic levels are indicative of species level distinction. Their biogeographic distributions, in combination with elphidiid SSU sequences from GenBank and high resolution images from the literature show that each of them exhibits species-specific rather than clade-specific biogeographies. Due to taxonomic uncertainty and divergent taxonomic concepts between schools, we believe that morphospecies names should not be placed onto molecular phylogenies unless both the morphology and genetic type have been linked to the formally named holotype, or equivalent. Based on strict morphological criteria, we advocate using only a three-stage approach to taxonomy for practical application in micropalaeontological studies. It comprises genotyping, the production of a formal morphological description of the SEM images associated with the genetic type and then the allocation of the most appropriate taxonomic name by comparison with the formal type description. Using this approach, we were able to apply taxonomic names to fifteen genetic types. One of the remaining two may be potentially cryptic, and one is undescribed in the literature. In general, the phylogeographic ... |
format |
Article in Journal/Newspaper |
author |
Darling, Kate F. Schweizer, Magali Knudsen, Karen Luise Evans, Katharine M. Bird, Clare Roberts, Angela Filipsson, Helena L. Kim, Jung Hyun Gudmundsson, Gudmundur Wade, Christopher M. Sayer, Martin D J Austin, William E N |
author_facet |
Darling, Kate F. Schweizer, Magali Knudsen, Karen Luise Evans, Katharine M. Bird, Clare Roberts, Angela Filipsson, Helena L. Kim, Jung Hyun Gudmundsson, Gudmundur Wade, Christopher M. Sayer, Martin D J Austin, William E N |
author_sort |
Darling, Kate F. |
title |
The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
title_short |
The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
title_full |
The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
title_fullStr |
The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
title_full_unstemmed |
The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic |
title_sort |
genetic diversity, phylogeography and morphology of elphidiidae (foraminifera) in the northeast atlantic |
publishDate |
2016 |
url |
https://pure.au.dk/portal/da/publications/the-genetic-diversity-phylogeography-and-morphology-of-elphidiidae-foraminifera-in-the-northeast-atlantic(a734548a-70dd-4e99-b337-908ec0cef7a4).html https://doi.org/10.1016/j.marmicro.2016.09.001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* Northeast Atlantic |
genre_facet |
Arctic Foraminifera* Northeast Atlantic |
op_source |
Darling , K F , Schweizer , M , Knudsen , K L , Evans , K M , Bird , C , Roberts , A , Filipsson , H L , Kim , J H , Gudmundsson , G , Wade , C M , Sayer , M D J & Austin , W E N 2016 , ' The genetic diversity, phylogeography and morphology of Elphidiidae (Foraminifera) in the Northeast Atlantic ' , Marine Micropaleontology , vol. 129 , pp. 1-23 . https://doi.org/10.1016/j.marmicro.2016.09.001 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.marmicro.2016.09.001 |
container_title |
Marine Micropaleontology |
container_volume |
129 |
container_start_page |
1 |
op_container_end_page |
23 |
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1766346156953042944 |