AUTHOR=Sun Yi-Fei , Fang Yu-Xuan , Cui Bao-Kai 

TITLE=Taxonomy and phylogeny of Sanguinoderma rugosum complex with descriptions of a new species and a new combination

JOURNAL=Frontiers in Microbiology

VOLUME=13

YEAR=2022

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.1087212

DOI=10.3389/fmicb.2022.1087212

ISSN=1664-302X

ABSTRACT=<p><italic>Sanguinoderma</italic> is distributed in tropical and subtropical areas as a member of <italic>Amauroderma</italic> s. lat., and the economic values of <italic>Sanguinoderma</italic> led to high attention in the taxonomic studies. Previously, 16 species have been developed into <italic>Sanguinoderma</italic>. In this study, the taxonomic system of <italic>Sanguinoderma</italic> was reconducted based on morphological and multi-gene phylogenetic analyses, especially making a distinction for <italic>Sanguinoderma rugosum</italic> complex. Morphological analysis was based on the notes of macro- and micro morphological observations. Multi-gene phylogenetic analyses were used maximum likelihood (ML) and Bayesian inference (BI) analyses inferred from combined dataset of ITS, nLSU, <italic>rpb2, tef1</italic>, mtSSU, and nSSU. Combined with morphological characters and phylogenetic evidence, the results demonstrated that <italic>S. rugosum</italic> complex consists of five taxa, in which <italic>Sanguinoderma leucomarginatum</italic> was described as a new species, and it is characterized by the orbicular pilei with white to buff margin when fresh and clavate apical cells of pileipellis with septa. In addition, <italic>Amauroderma preussii</italic> was transferred to <italic>Sanguinoderma</italic> as a new combination due to its blood-red color-changed pore surface; it is characterized by the funnel-shaped, greyish brown, and glabrous pilei with strongly incurved margin. Detailed descriptions and photographs of the two species were provided. With the extension of this study, 18 species were accepted in <italic>Sanguinoderma</italic>, and 12 species among them were distributed in China. A key to accepted species of <italic>Sanguinoderma</italic> was also provided.</p>