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: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2016
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Online Access: | https://lup.lub.lu.se/record/23555b1d-1d48-459a-87c5-69565a9fe6bc https://doi.org/10.1016/j.marmicro.2016.09.001 |
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ftulundlup:oai:lup.lub.lu.se:23555b1d-1d48-459a-87c5-69565a9fe6bc 2024-02-04T09:58:35+01:00 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://lup.lub.lu.se/record/23555b1d-1d48-459a-87c5-69565a9fe6bc https://doi.org/10.1016/j.marmicro.2016.09.001 eng eng Elsevier https://lup.lub.lu.se/record/23555b1d-1d48-459a-87c5-69565a9fe6bc http://dx.doi.org/10.1016/j.marmicro.2016.09.001 wos:000390742300001 scopus:84994560531 Marine Micropaleontology; 129, pp 1-23 (2016) ISSN: 0377-8398 Geology Biological Systematics Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy contributiontojournal/article info:eu-repo/semantics/article text 2016 ftulundlup https://doi.org/10.1016/j.marmicro.2016.09.001 2024-01-10T23:29:18Z 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 Lund University Publications (LUP) Arctic Marine Micropaleontology 129 1 23 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Biological Systematics Benthic foraminifera Elphidiidae Northeast Atlantic Phylogeography Protist diversity Taxonomy |
spellingShingle |
Geology Biological Systematics 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 |
Geology Biological Systematics 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 |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://lup.lub.lu.se/record/23555b1d-1d48-459a-87c5-69565a9fe6bc 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 |
Marine Micropaleontology; 129, pp 1-23 (2016) ISSN: 0377-8398 |
op_relation |
https://lup.lub.lu.se/record/23555b1d-1d48-459a-87c5-69565a9fe6bc http://dx.doi.org/10.1016/j.marmicro.2016.09.001 wos:000390742300001 scopus:84994560531 |
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 |
_version_ |
1789963050447536128 |