Cerradopsora, a new genus of neotropical rust fungi

ABSTRACT

Two Cerrado rust fungi, Phakopsora rossmaniae and Aplopsora hennenii, described in 1993 and 1995 and originally assigned to families Phakopsoraceae and Ochropsoraceae, respectively, were subjected to molecular phylogenetic analyses using fragments of the nuc 28S and 18S rDNA and mitochondrial cytochrome c oxidase subunit 3 (CO3) gene. Although both taxa were morphologically well placed in their original genera, they were shown to belong in a strongly supported new lineage within the Raveneliineae distant from the Phakopsoraceae and Ochropsoraceae. Therefore, we properly treated this lineage as the new genus Cerradopsora now harboring C. rossmaniae (type species) and C. hennenii. However, this novel phakopsoroid genus remains in uncertain familial position without support to be included in any of the families that share space within the Raveneliineae.

KEYWORDS:

• Brazil
• Cerrado biotrophic fungi
• molecular phylogeny
• neotropical Pucciniales
• Ochropsoraceae
• Phakopsoraceae
• Raveneliineae
• 3 new taxa

ACKNOWLEDGMENTS

We thank Prof. Mercedes Bastamante for allowing M. D. M. Dos Santos spend part of her time in this research and Prof. Sonia Nair Baó for the use of the Electron Microscopy Laboratory through the participation of G. S. S. S. Tonelli.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Supplementary Information

Supplemental data for this article can be accessed online at https://doi.org/10.1080/00275514.2023.2259417

Additional information

Funding

This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/Brazil) (PQ2 Fellowship to J. C. Dianese) and the Fundação de Apoio à Pesquisa do Distrito Federal (FAPDF) (00193-077/2019-41; to Prof. Dirceu Macagnan). J. M. T. Martins was supported by a FAPDF fellowship, and Malte Ebinghaus by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation; no. 447382260).