Restingomyces, a new sequestrate genus from the Brazilian Atlantic rainforest that is phylogenetically related to early-diverging taxa in Trappeaceae (Phallales)

• Published in: Mycologia Vol. 108; no. 5; pp. 954 - 966
• Main Authors: Sulzbacher, Marcelo A., Grebenc, Tine, Cabral, Tiara S., Giachini, Admir J., Goto, Bruno T., Smith, Matthew E., Baseia, Iuri G.
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis 01.09.2016; Mycological Society of America
• Subjects: Basidiomycota - classification; Basidiomycota - cytology; Basidiomycota - genetics; Basidiomycota - isolation & purification; Biometry; Brazil; Cluster Analysis; DNA, Fungal - chemistry; DNA, Fungal - genetics; DNA, Ribosomal - chemistry; DNA, Ribosomal - genetics; Hypogeous sequestrate fungi; Microscopy; Mitochondrial Proton-Translocating ATPases - genetics; molecular phylogenetics; Neotropics; Photography; Phylogeny; Rainforest; RNA, Ribosomal, 28S - genetics; sand dunes; Sequence Analysis, DNA; SYSTEMATICS; truffle-like fungi; sand dunes; truffle-like fungi; Hypogeous sequestrate fungi; Neotropics; molecular phylogenetics
• ISSN: 0027-5514; 1557-2536
• DOI: 10.3852/15-265

Restingomyces reticulatus gen. et sp. nov. is a recently discovered false truffle species from Atlantic "restinga" rainforest in northeastern Brazil. Molecular and morphological characters separate this new sequestrate species from other described taxa in the order Phallales (Phallomycetidae, Basidiomycota). In our phylogenetic analysis based on nuc 28S rDNA and atp6, R. reticulatus forms a sister clade to Trappea darkeri and Phallobata alba, with the three taxa forming the earliest diverging lineage within Phallales. Morphological and molecular data warrant the recognition of the new genus and species, described here, and we also amend the taxonomic description for the family Trappeaceae.