Hidden fungal diversity from the Neotropics: Geastrum hirsutum, G. schweinitzii (Basidiomycota, Geastrales) and their allies

Thiago Accioly; Julieth O Sousa; Pierre-Arthur Moreau; Christophe Lécuru; Bianca D B Silva; Mélanie Roy; Monique Gardes; Iuri G Baseia; María P Martín

doi:10.1371/journal.pone.0211388

Hidden fungal diversity from the Neotropics: Geastrum hirsutum, G. schweinitzii (Basidiomycota, Geastrales) and their allies

PLoS One. 2019 Feb 6;14(2):e0211388. doi: 10.1371/journal.pone.0211388. eCollection 2019.

Authors

Thiago Accioly¹, Julieth O Sousa¹, Pierre-Arthur Moreau², Christophe Lécuru³, Bianca D B Silva⁴, Mélanie Roy⁵, Monique Gardes⁵, Iuri G Baseia⁶, María P Martín⁷

Affiliations

¹ Programa de Pós-Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
² EA4483 IMPECS, UFR Pharmacie, Université de Lille, Lille, France.
³ Herbarium LIP, UFR Pharmacie, Université de Lille, Lille, France.
⁴ Departamento de Botânica, Instituto de Biologia, Universidade Federal da Bahia, Ondina, Salvador, Bahia, Brazil.
⁵ Laboratoire UMR5174 Evolution et Diversité Biologique (EDB), Université Toulouse 3 Paul Sabatier, Toulouse, France.
⁶ Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
⁷ Departamento de Micología, Real Jardín Botánico-CSIC, Madrid, Spain.

Abstract

Taxonomy of Geastrum species in the neotropics has been subject to divergent opinions among specialists. In our study, type collections were reassessed and compared with recent collections in order to delimit species in Geastrum, sect. Myceliostroma, subsect. Epigaea. A thorough review of morphologic features combined with barcode and phylogenetic analyses (ITS and LSU nrDNA) revealed six new species (G. neoamericanum, G. rubellum, G. brunneocapillatum, G. baculicrystallum, G. rubropusillum and G. courtecuissei). In additon, the presence of hairs on the exoperidium, a commonly used feature to diagnose Geastrum species, proved to be ineffective because it is a derived character within subsect. Epigaea.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Americas
Basidiomycota / classification*
Basidiomycota / cytology
Basidiomycota / genetics*
DNA Barcoding, Taxonomic
DNA, Fungal / genetics
Genetic Variation
Phylogeny
Phylogeography
Species Specificity
Tropical Climate

Substances

DNA, Fungal

Grants and funding

This work was supported by: (TA and JS) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES—Brazil) for the PhD scholarships awarded to Thiago Accioly and Julieth Sousa (PDSE-2017); (IGB and MPM) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq—Brazil, Projeto Pesquisador Visitante Especial PVE/407474/2013–7, María P. Martín and Iuri G. Baseia); (PAM, MR and MG) The French Laboratories of Excellence Labex TULIP (ANR-10-LABX-41; ANR-11-IDEX-0002-02) and Labex CEBA (ANR-10-LABX-25-01), the National Forest Office (ONF, France), the program ANR E-TRICEL (National Research Agency, France) and the DREAL Martinique (France) provided financial support for this study.