Molecular and morphological evidence reveal a new genus and species in Auriculariales from tropical China

Abstract

Grammatus labyrinthinus gen. et sp. nov. is proposed based on DNA sequences data and morphological characteristics. It is known so far from southern, tropical China. The new species is characterised by an annual, resupinate basidiocarp with a shallow, subporoid hymenophore, a hymenium restricted to the bottom of the tubes, a dimitic hyphal system, presence of encrusted skeletocystidia and dendrohyphidia, longitudinally septate basidia and smooth, oblong-ellipsoid to cylindrical, acyanophilous basidiospores. Phylogenetic analyses based on ITS + nLSU DNA sequences data indicate that G. labyrinthinus belongs to Auriculariaceae in which it has an isolated position. Phylogenetic inferences show G. labyrinthinus to be related to Heteroradulum. However, the ITS sequences similarity between G. labyrinthinus and H. kmetii, the type species of Heteroradulum, were 89.84% and support the establishment of the new genus. Inversely, Heteroradulum semis clustered with G. labyrinthinus with strong support and it is transferred to Grammatus.

The Morphological Characteristics and Phylogenetic Analyses Revealed an Additional Taxon in Heteroradulum (Auriculariales)

“…Phylogenetic analyses based on ITS+nLSU DNA sequence data indicated that Heteroradulum belonged to Auriculariaceae, which showed that Heteroradulum was to be related to Grammatus H.S. Yuan & C. Decock [15]. Sequences of ITS and LSU nrRNA gene regions of the studied samples were generated, which showed that H. yunnanensis C.L.…”

INVENTARISASI JAMUR MAKROSKOPIS PADA HABITAT RAWA GAMBUT Di KAWASAN CABANG PANTI TAMAN NASIONAL GUNUNG PALUNG KALIMANTAN BARAT

“…Analisa secara deskriptif dilakukan melalui hasil pengamatan ciri-ciri morfologis dari setiap sampel jamur yang didapat. (Yuan et al 2018). Genus Auricularia merupakan anggota jamur yang paling umum dan terdistribusi luas, mulai dari tunggul, batang kayu hingga cabang pohon kayu.…”

Multiple-marker phylogeny and morphological evidence reveal two new species in Steccherinaceae (Polyporales, Basidiomycota) from Asia

“…Morphological and phylogenetic analyses have provided more accurate identification and contributed to the definition of the taxonomic status of the genera in Steccherinaceae . In recent years, phylogenetic analysis based on multi-marker data has been widely used in the taxonomy of these fungi ( He and Dai 2012 ; Miettinen et al 2012 ; Binder et al 2013 ; Dai et al 2014 ; Miettinen and Ryvarden 2016 ; Justo et al 2017 ; Kotiranta et al 2017 ; Westphalen et al 2018 ; Yuan et al 2018 ; Yuan et al 2020 ).…”