Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)

Abstract The genus Cyathus was established in 1768, but more in-depth taxonomic studies with the group only occurred after 1844. In the following years, changes in the infrageneric classification of Cyathus were proposed based mainly on morphology. With advances in phylogenetic studies, the morpholo...

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Main Authors: Rhudson Henrique Santos Ferreira da Cruz, Jefferson dos Santos Góis, Paulo Marinho, Iuri Goulart Baseia, Kentaro Hosaka
Format: Article
Language:English
Published: BMC 2023-04-01
Series:IMA Fungus
Subjects:
Online Access:https://doi.org/10.1186/s43008-023-00111-y
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author Rhudson Henrique Santos Ferreira da Cruz
Jefferson dos Santos Góis
Paulo Marinho
Iuri Goulart Baseia
Kentaro Hosaka
author_facet Rhudson Henrique Santos Ferreira da Cruz
Jefferson dos Santos Góis
Paulo Marinho
Iuri Goulart Baseia
Kentaro Hosaka
author_sort Rhudson Henrique Santos Ferreira da Cruz
collection DOAJ
description Abstract The genus Cyathus was established in 1768, but more in-depth taxonomic studies with the group only occurred after 1844. In the following years, changes in the infrageneric classification of Cyathus were proposed based mainly on morphology. With advances in phylogenetic studies, the morphological classifications were tested and a new subdivision into three groups was proposed in 2007. Based on the last two classifications, this work aims to expand and understand the internal phylogenetic relationships among the fungi of the genus Cyathus and examine how these relationships are reflected in the taxonomic classification, through molecular analyses covering most of the species in the group, based on materials obtained from type specimens deposited in major fungal collections worldwide, besides expanding sampling with tropical species. Molecular analyses followed the protocols available in the literature, including the design of specific primers for Cyathus. In the phylogenetic analysis, using Maximum Parsimony and Bayesian methods, sequences of ITS and LSU regions from 41 samples of 39 species of Cyathus, 26 were placed with some nomenclatural types. The monophyly of Cyathus was confirmed with maximum support in both tests, and the infrageneric groups of the most recent classification were unchanged, but the clade striatum showed segregation into four groups and three subgroups. The phylogenetic organization is supported morphological characters, and diagnoses are presented for each group, as well as a dichotomous key for the infrageneric separation.
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spelling doaj.art-2544685cfae74511834340c28472e48a2023-04-09T11:23:10ZengBMCIMA Fungus2210-63592023-04-0114111710.1186/s43008-023-00111-yRearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)Rhudson Henrique Santos Ferreira da Cruz0Jefferson dos Santos Góis1Paulo Marinho2Iuri Goulart Baseia3Kentaro Hosaka4Centro das Ciências Biológicas e da Saúde, Universidade Federal do Oeste da BahiaDepartamento de Botânica e Zoologia, Programa de Pós-Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do NorteDepartamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do NorteDepartamento de Botânica e Zoologia, Programa de Pós-Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do NorteDepartment of Botany, National Museum of Nature and ScienceAbstract The genus Cyathus was established in 1768, but more in-depth taxonomic studies with the group only occurred after 1844. In the following years, changes in the infrageneric classification of Cyathus were proposed based mainly on morphology. With advances in phylogenetic studies, the morphological classifications were tested and a new subdivision into three groups was proposed in 2007. Based on the last two classifications, this work aims to expand and understand the internal phylogenetic relationships among the fungi of the genus Cyathus and examine how these relationships are reflected in the taxonomic classification, through molecular analyses covering most of the species in the group, based on materials obtained from type specimens deposited in major fungal collections worldwide, besides expanding sampling with tropical species. Molecular analyses followed the protocols available in the literature, including the design of specific primers for Cyathus. In the phylogenetic analysis, using Maximum Parsimony and Bayesian methods, sequences of ITS and LSU regions from 41 samples of 39 species of Cyathus, 26 were placed with some nomenclatural types. The monophyly of Cyathus was confirmed with maximum support in both tests, and the infrageneric groups of the most recent classification were unchanged, but the clade striatum showed segregation into four groups and three subgroups. The phylogenetic organization is supported morphological characters, and diagnoses are presented for each group, as well as a dichotomous key for the infrageneric separation.https://doi.org/10.1186/s43008-023-00111-yGasteromycetesITS-LSU analysisInfrageneric classification
spellingShingle Rhudson Henrique Santos Ferreira da Cruz
Jefferson dos Santos Góis
Paulo Marinho
Iuri Goulart Baseia
Kentaro Hosaka
Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
IMA Fungus
Gasteromycetes
ITS-LSU analysis
Infrageneric classification
title Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
title_full Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
title_fullStr Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
title_full_unstemmed Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
title_short Rearranging the Bird’s Nest Fungi: molecular review of internal clades in Cyathus (Nidulariaceae, Basidiomycota)
title_sort rearranging the bird s nest fungi molecular review of internal clades in cyathus nidulariaceae basidiomycota
topic Gasteromycetes
ITS-LSU analysis
Infrageneric classification
url https://doi.org/10.1186/s43008-023-00111-y
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