Mycological Progress

, Volume 17, Issue 9, pp 1031–1048 | Cite as

Evolutionary relationships of Bresadolia (Basidiomycota, Polyporales) based on molecular and morphological evidence

  • Viviana Motato-Vásquez
  • Emmanuel Grassi
  • Adriana M. Gugliotta
  • Gerardo L. RobledoEmail author
Original Article


In the last decades, several phylogenetic studies have shown that Polyporus is polyphyletic; accordingly, several genera have been newly described or reinstated. Nevertheless, the phylogenetic position of many species in the genus remains highly contentious, particularly those traditionally included in the Polyporus infrageneric group Polyporus s.s., i.e., P. austroafricanus, P. craterellus, P. radicatus, P. squamosus, P. tuberaster, and P. udus. Recently, based on morphological characteristics, P. udus, described from Indonesia, was synonymized with Bresadolia paradoxa, described from Paraguay, resurrecting Bresadolia as a good genus. In this study, the phylogenetic relationship of P. udus and its purported taxonomic synonym in South America was investigated. In addition, the phylogenetic positioning of Bresadolia within Polyporus s.l. and related genera was assessed, based on ITS and nLSU rDNA loci. Morphological revision of collections from the Atlantic Forest of Argentina, Brazil, and Paraguay; revision of type specimens; and the phylogenetic results showed that B. paradoxa and P. udus are not conspecific. Both species form independent lineages that cluster together within a monophyletic genus recognized here as Bresadolia. In this study, a complete description of B. paradoxa incorporating data of type specimens previously overlooked and characters from sequenced fresh specimens is provided, as well as comments on all species described or combined in Bresadolia.


Atlantic Forest Core polyporoid clade Polyporus Phylogeny Taxonomy 



The authors thank the curators of BAFC, DAOM, FCOS, LPS, HLB, K, S, TENN, and SP herbaria for the loan of type or original collections. VMV also gratefully acknowledges the PhD financial support received from Coordenação de Aperfeiçoamento Pessoal de Nível Superior (CAPES), Brazil; International Association for Plant Taxonomy (IAPT); and Rufford Small Grant Foundation. Authors also acknowledge the assistance of Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Universidad Nacional de Córdoba, both of which support facilities used in this project. Financial support was also provided by (1) International Cooperation Project BR10RED01, Argentina–Brasil MINCyT–CAPES “Diversidad y Ecología De Hongos Degradadores (Aphyllophorales, Basidiomycota) Del Sur De Brazil y Argentina”; (2) FONCYT (PICT 1676) and Fondo IBOL CONICET; and by (3) FONCYT (PICT-2015-0830). Authorities that give permits to collect in Paraguay, Argentina, and Brazil (Instituto Florestal) are kindly acknowledged. Technical equipment support was also provided by Idea Wild. Authors express sincere thanks to the two anonymous reviewers for their valuable and constructive comments and suggestions to improve the quality of the paper.


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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Viviana Motato-Vásquez
    • 1
  • Emmanuel Grassi
    • 2
  • Adriana M. Gugliotta
    • 1
  • Gerardo L. Robledo
    • 3
    • 4
    Email author
  1. 1.Núcleo de Pesquisa em MicologiaInstituto de BotânicaSão PauloBrazil
  2. 2.Instituto Misionero de Biodiversidad (IMiBio)Puerto IguazúArgentina
  3. 3.Instituto Multidisciplinario de Biología Vegetal - CONICET, Laboratorio de MicologíaUniversidad Nacional de CórdobaCórdobaArgentina
  4. 4.Fundación FungiCosmosCórdobaArgentina

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