Phylogeny of Physarida (Amoebozoa, Myxogastria) Based on the Small-Subunit Ribosomal RNA Gene, Redefinition of Physarum pusillum s. str. and Reinstatement of P. gravidum Morgan
| Autor: | Myriam de Haan, Anna Maria Fiore-Donno, Renato Cainelli, Michael Bonkowski, Marianne Meyer |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Ribosome Subunits Small Eukaryotic Physarum biology Spores Protozoan Morphology (biology) Sequence Analysis DNA 030108 mycology & parasitology DNA Protozoan biology.organism_classification Microbiology Conosa Amoebozoa 03 medical and health sciences Myxogastria 030104 developmental biology Common species Phylogenetics Evolutionary biology Slime mold Microscopy Electron Scanning Phylogeny |
| Zdroj: | The Journal of eukaryotic microbiologyLiterature Cited. 67(3) |
| ISSN: | 1550-7408 |
| Popis: | Myxomycetes (also called Myxogastria or colloquially, slime molds) are worldwide occurring soil amoeboflagellates. Among Amoebozoa, they have the notable characteristic to form, during their life cycle, macroscopic fruiting bodies, that will ultimately release spores. Some 1,000 species have been described, based on the macroscopic and microscopic characteristics of their fruiting bodies. We were interested in Physarum pusillum (Berk. & M.A. Curtis) G. Lister, a very common species described with two variants, each bearing such morphological differences that they could represent two distinct species. In order to test this, we observed key characters in a large selection of specimens attributed to P. pusillum, to its synonyms (in particular Physarum gravidum), and to related species. In addition, the small-subunit ribosomal RNA gene was obtained from seven of these specimens. Based on these data, we provide a comprehensive phylogeny of the order Physarida (Eukaryota: Amoebozoa: Conosa: Macromycetozoa: Fuscisporidia). Morphology and phylogeny together support the reinstatement of P. gravidum Morgan 1896 with a neotype here designated, distinct from P. pusillum, here redefined. |
| Databáze: | OpenAIRE |
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