AUTHOR=Niu Caiyun , Liu Tiezhi , Zhao Shiyi , Ren Jing , Zhao Yi , Kang Xia , Qin Weiqiang , Xie Xuejiao , Zhang Xu , Wei Tiezheng , Tian Jinghua , Li Xiao , Li Ming , Li Shoumian , Li Guojie 

TITLE=Multi-gene analysis of the Russula crown clade (Russulales, Basidiomycota) revealed six new species and Alboflavinae subsect. nov. from Fagaceae forests in China

JOURNAL=Frontiers in Plant Science

VOLUME=15

YEAR=2024

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2024.1454035

DOI=10.3389/fpls.2024.1454035

ISSN=1664-462X

ABSTRACT=<sec><title>Introduction</title><p>The crown clade is one of two major groups in the <italic>Russula</italic> subg. <italic>Russula</italic>.</p></sec><sec><title>Methods/material</title><p>An analysis of Chinese samples was performed based on the morphology, internal transcribed spacer (ITS) sequences, and multi-gene phylogenies of 28S nrLSU, 16S mtSSU, <italic>rpb1</italic>, <italic>rpb2</italic>, and <italic>tef1-α</italic>.</p></sec><sec><title>Results</title><p>The results supported the independence of six new species: <italic>Russula alboflava</italic> (sect. <italic>Amethystinae</italic>), <italic>R. chrysantha</italic> (subsect. <italic>Chamaeleontinae</italic>), <italic>R. liyui</italic> (subsect. <italic>Laricinae</italic>), <italic>R. lutescens</italic> (subsect. <italic>Olivaceinae</italic>), <italic>R. paraxerampelina</italic>, and <italic>R. prunicolor</italic> (subsect. <italic>Xerampelinae</italic>) from Fagaceae forest habitats. Subsect. <italic>Alboflavinae</italic> was newly proposed in sect. <italic>Amethystinae</italic>. Members of the new subsection include <italic>R</italic>. <italic>alboflava</italic>, <italic>R. burlinghamiae</italic>, and possibly <italic>R. ballouii</italic>.</p></sec><sec><title>Discussion</title><p>Our analyses also supported the claim that two species of <italic>R. fulvograminea</italic> (subsect. <italic>Laricinae</italic>) and <italic>R. subrubens</italic> (subsect. <italic>Xerampelinae</italic>) have a Eurasian distribution. The habitat and primary hosts of the main phylogenetic clades within related subsections were summarized and discussed.</p></sec>