New insights into the genus Gyroporus (Gyroporaceae, Boletales), with establishment of four new sections and description of five new species from China

Ming Zhang; De-Chun Xie; Chao-Qun Wang; Wang Qiu Deng; Tai-Hui Li

doi:10.1080/21501203.2022.2094012

New insights into the genus Gyroporus (Gyroporaceae, Boletales), with establishment of four new sections and description of five new species from China

Mycology. 2022 Jul 5;13(3):223-242. doi: 10.1080/21501203.2022.2094012. eCollection 2022.

Authors

Ming Zhang¹, De-Chun Xie^{1

2}, Chao-Qun Wang¹, Wang Qiu Deng¹, Tai-Hui Li¹

Affiliations

¹ State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong Province, China.
² Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, China.

Abstract

Species of Gyroporus from southern China were studied in this study. Based on morphology and molecular phylogenetic analyses of DNA sequences from the nuclear ribosomal internal transcribed spacer (ITS), the nuclear ribosomal large subunit (nrLSU), and the mitochondrial adenosine triphosphate ATP synthase subunit 6 (atp6), Gyroporus was divided into four main branches in the phylogenetic tree, and four sections were firstly proposed i.e. Gyroporus sect. Castaneus, G. sect. Cyanescens, G. sect. Longicystidiatus and G. sect. Pallidus. Five new species, i.e. G. alboluteus, G. atrocyanescens, G. pseudolongicystidiatus, G. pallidus and G. subcaerulescens, were revealed from China, and their phylogenetic positions were also analysed. Among them, G. alboluteus and G. pallidus were nested into the sect. Pallidus, although morphologically similar to G. castaneus; G. atrocyanescens and G. subcaerulescens, with obvious cyanescent oxidation reactions, were nested into the sect. Cyanescens; and G. pseudolongicystidiatus characterised by its long cystidia and was nested into the sect. Longicystidiatus. The new species were formally described and illustrated in the present study, and a key to the sections and species of Gyroporus in China was provided.

Keywords: Eastern Asia; new taxa; phylogenetic analysis; taxonomy.

Grants and funding

This work was supported by the National Natural Science Foundation of China [32070020,32170010]; Science and Technology Planning Project of Guangdong Forestry Bureau [LC-2021124]; the GDAS’ Project of Science and Technology Development [2020GDASYL-20200104013].