Multi-gene phylogeny and morphological characters reveal seven new species of Micropsalliota (Agaricales, Agaricaceae) from southern China, with an updated key for the species distributed in China

Autor: Tian Gao, Hua Qu, Zai-Wei Ge
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Mycology, Vol 15, Iss 3, Pp 374-399 (2024)
Druh dokumentu: article
ISSN: 21501203
2150-1211
2150-1203
DOI: 10.1080/21501203.2024.2323206
Popis: Species of Micropsalliota generally grow in the tropics and are characterised by small, slender basidiomes, brown basidiospores, and cheilocystidia that vary in shape with capitate or subcapitate apex, and pigmented pileipellis. Based on morphological characters and molecular evidence, here we describe seven new species from southern China, viz. Micropsalliota ferruginea, M. fimbriata, M. gigaspora, M. longicystis, M. nana, M. squarrosa, and M. umbonata. Micropsalliota appendiculata, a species recently described from Vietnam, was first recorded in China. The Maximum likelihood and Bayesian analyses based on multi-locus sequence datasets (the nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2, nrITS; the D1–D2 domains of nuc 28S rDNA, LSU; partial sequences of the most variable region of the second-largest subunit of RNA polymerase II, rpb2, and a portion of the translation-elongation factor 1-α, tef1) shows that the genus is separated into 11 major clades and subclades. To aid in diagnosis, a key to 32 species of Micropsalliota in China is provided.
Databáze: Directory of Open Access Journals
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje