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Article Dans Une Revue Experimental Mycology Année : 2023

Phylogenetic and taxonomic updates of Agaricales , with an emphasis on Tricholomopsis

Geng-Shen Wang
  • Fonction : Auteur
Qing Cai
  • Fonction : Auteur
Yan-Jia Hao
  • Fonction : Auteur
Tolgor Bau
  • Fonction : Auteur
Zuo-Hong Chen
  • Fonction : Auteur
Mei-Xiang Li
  • Fonction : Auteur
Nattapol Kraisitudomsook
  • Fonction : Auteur
Zhu-Liang Yang
  • Fonction : Auteur

Résumé

The order Agaricales was divided into eight suborders. However, the phylogenetic relationships among some suborders are largely unresolved, and the phylogenetic positions and delimitations of some taxa, such as Sarcomyxaceae and Tricholomopsis, remain unsettled. In this study, sequence data of 38 genomes were generated through genome skimming on an Illumina sequencing system. To anchor the systematic position of Sarcomyxaceae and Tricholomopsis, a phylogenetic analysis based on 555 single-copy orthologous genes from the aforementioned genomes and 126 publicly accessible genomes was performed. The results fully supported the clustering of Tricholomopsis with Phyllotopsis and Pleurocybella within Phyllotopsidaceae, which formed a divergent monophyletic major lineage together with Pterulaceae, Radulomycetaceae, and Macrotyphula in Agaricales. The analysis also revealed that Sarcomyxaceae formed a unique major clade. Therefore, two new suborders, Phyllotopsidineae and Sarcomyxineae, are proposed for the two major lineages. Analyses of 450 single-copy orthologous genes and four loci suggested that Tricholomopsis consisted of at least four clades. Tricholomopsis is subsequently subdivided into four distinct sections. Seventeen Tricholomopsis species in China, including six new species, are reported. Conoloma is established to accommodate T. mucronata. The substrate preference of Tricholomopsis species and the transitions of the pileate ornamentations among the species within the genus are discussed.

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Mycologie
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hal-04279909 , version 1 (10-11-2023)

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Geng-Shen Wang, Qing Cai, Yan-Jia Hao, Tolgor Bau, Zuo-Hong Chen, et al.. Phylogenetic and taxonomic updates of Agaricales , with an emphasis on Tricholomopsis. Experimental Mycology, 2023, pp.1-30. ⟨10.1080/21501203.2023.2263031⟩. ⟨hal-04279909⟩
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