Phytopythium: molecular phylogeny and systematics
| Autor: | Z. Gloria Abad, C.A. Lévesque, G.P. Robideau, A.W.A.M. de Cock, Kanak Bala, Tara L. Rintoul, Michael D. Coffey, Abdul Mubeen Lodhi, Saleem Shahzad |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Systematics 0303 health sciences biology Phylogenetic tree Peronosporales fungi food and beverages biology.organism_classification 01 natural sciences 03 medical and health sciences Phylogenetics Molecular phylogenetics Botany Phytophthora Ribosomal DNA Pythiales Ecology Evolution Behavior and Systematics 030304 developmental biology 010606 plant biology & botany |
| Zdroj: | Persoonia - Molecular Phylogeny and Evolution of Fungi. 34:25-39 |
| ISSN: | 0031-5850 |
| Popis: | The genus Phytopythium (Peronosporales) has been described, but a complete circumscription has not yet been presented. In the present paper we provide molecular-based evidence that members of Pythium clade K as described by Levesque & de Cock (2004) belong to Phytopythium. Maximum likelihood and Bayesian phylogenetic analysis of the nuclear ribosomal DNA (LSU and SSU) and mitochondrial DNA cytochrome oxidase subunit 1 (COI) as well as statistical analyses of pairwise distances strongly support the status of Phytopythium as a separate phylogenetic entity. Phytopythium is morphologically intermediate between the genera Phytophthora and Pythium. It is unique in having papillate, internally proliferating sporangia and cylindrical or lobate antheridia. The formal transfer of clade K species to Phytopythium and a comparison with morphologically similar species of the genera Pythium and Phytophthora is presented. A new species is described, Phytopythium mirpurense. |
| Databáze: | OpenAIRE |
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