Phylogenetic relationships of Phaeochorella parinarii and recognition of a new family, Phaeochorellaceae (Diaporthales)

Species of Phaeochorella are biotrophic leaf parasites with a tropical distribution, traditionally accepted in the family Phyllachoraceae, Phyllachorales in classifications based on morphological characters. Phylogenetic evidence presented here resolves the relationship of Phaeochorella within the S...

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Bibliographic Details
Published in:Mycologia 2019-07, Vol.111 (4), p.660-675
Main Authors: Guterres, Debora Cervieri, Galvão-Elias, Samuel, dos Santos, Maria do Desterro Mendes, de Souza, Bruno Cézar Pereira, de Almeida, Camila Pereira, Pinho, Danilo Batista, Miller, Robert Neil Gerard, Dianese, José Carmine
Format: Article
Language:English
Subjects:
1 new epitypification
1 new taxon
Ascomycota - classification
Ascomycota - genetics
Ascomycota - isolation & purification
Brazil
Cerrado
Diaporthaceae
DNA, Fungal - genetics
fungal taxonomy
multilocus phylogeny
Neotropical microfungi
Phyllachora-like species
Phyllachoraceae
Phyllachorales - classification
Phyllachorales - genetics
Phyllachorales - isolation & purification
Phylogeny
RNA, Ribosomal, 28S - genetics
RNA, Ribosomal, 5.8S - genetics
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Summary:Species of Phaeochorella are biotrophic leaf parasites with a tropical distribution, traditionally accepted in the family Phyllachoraceae, Phyllachorales in classifications based on morphological characters. Phylogenetic evidence presented here resolves the relationship of Phaeochorella within the Sordariomycetes, based on a multilocus analysis of partial nuc rDNA large subunit (28S) and internal transcribed spacers (ITS1-5.8S-ITS2 = ITS), the DNA-directed RNA polymerase II second largest subunit (RPB2), and the translation elongation factor 1-α (TEF1-α) gene. Phylogenetic analyses indicate that Phaeochorella belongs to the Diaporthales rather than the Phyllachorales. Phaeochorella parinarii, the type species of the genus, present on native hosts from the Brazilian Cerrado, forms a unique clade with a species of Phaeoappendicospora with high support. Thus, a new family, Phaeochorellaceae, Diaporthales, including both genera, is herein proposed. With the exception of P. parinarii and P. zonata, all other species in Phaeochorella (P. artocarpi, P. ciliata, P. machaerii) were excluded from the genus.
ISSN:0027-5514
1557-2536
DOI:10.1080/00275514.2019.1603025