Three New Species of <i>Placoneis</i> Mereschkowsky (Bacillariophyceae: Cymbellales) with Comments on Cryptic Diversity in the <i>P. elginensis</i>—Group
Using genetic markers 18S V4 rDNA and <i>rbc</i>L and morphological investigation of the diatom genus <i>Placoneis,</i> we described three new species. The new species, <i>Placoneis baikaloelginensis</i> sp. nov., <i>Placoneis subundulata</i> sp. nov.,...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/922df44aecea467595a561a1d6835936 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | Using genetic markers 18S V4 rDNA and <i>rbc</i>L and morphological investigation of the diatom genus <i>Placoneis,</i> we described three new species. The new species, <i>Placoneis baikaloelginensis</i> sp. nov., <i>Placoneis subundulata</i> sp. nov., <i>Placoneis neohambergii</i> sp. nov. were isolated from Russia (Lake Baikal) and Vietnam (waterbodies of Cát Tiên National Park (Đồng Nai Province) and Khánh Hòa Province). We examine relationships within the Cymbellales and show that the genera <i>Placoneis</i>, <i>Paraplaconeis</i> and <i>Geissleria</i> are phylogenetically independent. We discuss the importance of careful identification of strains used for phylogenetic analysis and we show the history of identification of several different <i>Placoneis elginensis</i> strains. After careful identification of <i>Placoneis elginensis</i> vouchers, we found that we have a few independent species. The question of cryptic or pseudocryptic species in this context is discussed. |
|---|