Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i>
<i>Stephanodiscus makarovae</i>, a taxon originally described from Russia, is morphologically similar to several other taxa within <i>Cyclostephanos</i>, namely <i>C. invisitatus</i>, <i>C. delicatus</i> and <i>C. tholiformis</i>. However,...
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MDPI AG
2021-12-01
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| Series: | Taxonomy |
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| Online Access: | https://www.mdpi.com/2673-6500/1/4/30 |
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| author | Konrad Schultz Thomas Hübener Mirko Dreßler Olivier Jacques Marcus Frank Armin Springer Anh Tu Van |
| author_facet | Konrad Schultz Thomas Hübener Mirko Dreßler Olivier Jacques Marcus Frank Armin Springer Anh Tu Van |
| author_sort | Konrad Schultz |
| collection | DOAJ |
| description | <i>Stephanodiscus makarovae</i>, a taxon originally described from Russia, is morphologically similar to several other taxa within <i>Cyclostephanos</i>, namely <i>C. invisitatus</i>, <i>C. delicatus</i> and <i>C. tholiformis</i>. However, it has not yet been transferred into <i>Cyclostephanos</i>, perhaps due to the difficulty in identifying it, as its original description is available only in the Russian language. To investigate its morphology, a detailed morphological comparison of <i>S. makarovae</i> and <i>C. invisitatus</i> was done from 286 SEM micrographs of 12 monoclonal strains. We performed a three-gene phylogenetic analysis with strains from eight additional taxa to independently confirm the position of <i>S. makarovae</i>. The morphology of <i>S. makarovae</i> shows key features of the genus <i>Cyclostephanos</i> and this attribution is supported by the phylogeny. Here we propose the transfer of the taxon <i>S. makarovae</i> to <i>Cyclostephanos</i>, considering the morphological and molecular data. According to both the molecular and morphological data, <i>C. delicatus</i> has a unique position within the genus; <i>S. makarovae</i> and <i>C. invisitatus</i> are morphologically very similar but genetically distinct. Furthermore, based upon the results, it was possible to reassign the authority of the transfer of <i>S. delicatus</i> into <i>Cyclostephanos</i>. |
| first_indexed | 2024-03-10T03:58:44Z |
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| last_indexed | 2024-03-10T03:58:44Z |
| publishDate | 2021-12-01 |
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| series | Taxonomy |
| spelling | doaj.art-27ea27c5495d4759b9ebbf7f4f1842e92023-11-23T10:47:54ZengMDPI AGTaxonomy2673-65002021-12-011442543710.3390/taxonomy1040030Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i>Konrad Schultz0Thomas Hübener1Mirko Dreßler2Olivier Jacques3Marcus Frank4Armin Springer5Anh Tu Van6Department of Botany, Institute of Biological Sciences, University of Rostock, Wismarsche Str. 44/45, 18051 Rostock, GermanyDepartment of Botany, Institute of Biological Sciences, University of Rostock, Wismarsche Str. 44/45, 18051 Rostock, GermanyDepartment of Botany, Institute of Biological Sciences, University of Rostock, Wismarsche Str. 44/45, 18051 Rostock, GermanyLaboratoire de Paleoecologie Aquatique (LPA), Departement de Geographie, Universite Laval, Quebec, QC G1V 0A6, CanadaMedical Biology and Electron Microscopy Centre, Rostock University Medical Center, Strempelstraße 14, 18057 Rostock, GermanyMedical Biology and Electron Microscopy Centre, Rostock University Medical Center, Strempelstraße 14, 18057 Rostock, GermanyInstitute of Biological Sciences, Applied Ecology and Phycology, University of Rostock, Albert-Einstein-Str. 3, 18059 Rostock, Germany<i>Stephanodiscus makarovae</i>, a taxon originally described from Russia, is morphologically similar to several other taxa within <i>Cyclostephanos</i>, namely <i>C. invisitatus</i>, <i>C. delicatus</i> and <i>C. tholiformis</i>. However, it has not yet been transferred into <i>Cyclostephanos</i>, perhaps due to the difficulty in identifying it, as its original description is available only in the Russian language. To investigate its morphology, a detailed morphological comparison of <i>S. makarovae</i> and <i>C. invisitatus</i> was done from 286 SEM micrographs of 12 monoclonal strains. We performed a three-gene phylogenetic analysis with strains from eight additional taxa to independently confirm the position of <i>S. makarovae</i>. The morphology of <i>S. makarovae</i> shows key features of the genus <i>Cyclostephanos</i> and this attribution is supported by the phylogeny. Here we propose the transfer of the taxon <i>S. makarovae</i> to <i>Cyclostephanos</i>, considering the morphological and molecular data. According to both the molecular and morphological data, <i>C. delicatus</i> has a unique position within the genus; <i>S. makarovae</i> and <i>C. invisitatus</i> are morphologically very similar but genetically distinct. Furthermore, based upon the results, it was possible to reassign the authority of the transfer of <i>S. delicatus</i> into <i>Cyclostephanos</i>.https://www.mdpi.com/2673-6500/1/4/30<i>Cyclostephanos</i><i>makarovae</i>morphological and molecular analyses |
| spellingShingle | Konrad Schultz Thomas Hübener Mirko Dreßler Olivier Jacques Marcus Frank Armin Springer Anh Tu Van Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> Taxonomy <i>Cyclostephanos</i> <i>makarovae</i> morphological and molecular analyses |
| title | Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> |
| title_full | Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> |
| title_fullStr | Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> |
| title_full_unstemmed | Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> |
| title_short | Disentangling the Taxonomic History of the Widespread and Overlooked Centric Diatom <i>Stephanodiscus makarovae</i> and Its Transfer to <i>Cyclostephanos</i> |
| title_sort | disentangling the taxonomic history of the widespread and overlooked centric diatom i stephanodiscus makarovae i and its transfer to i cyclostephanos i |
| topic | <i>Cyclostephanos</i> <i>makarovae</i> morphological and molecular analyses |
| url | https://www.mdpi.com/2673-6500/1/4/30 |
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