School of BioSciences, University of Melbourne, Parkville, Victoria 3010, Australia.
Royal Botanic Gardens Victoria, Birdwood Avenue, Melbourne, Victoria 3004, Australia.
Mycologia. 2024 Nov-Dec;116(6):965-992. doi: 10.1080/00275514.2024.2363211. Epub 2024 Aug 29.
Stipitate Thelephorales are basidiomycetous, mostly hydnoid, ectomycorrhizal fungi. Some species have declined considerably, and some are threat-listed as vulnerable or endangered. These ecological concerns require a well-resolved taxonomy to understand diversity in this group of fungi and facilitate conservation. However, phylogenetic studies have mostly neglected Southern Hemisphere representatives. This study examines the fleshy species of stipitate Thelephorales from native forests in Australia and New Zealand, using morphological analyses and phylogenetic analyses of nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS barcode) and D1-D2 domains at the 5' end of nuc 28S rDNA (28S) sequences amplified from DNA isolated from fungarium collections and environmental DNA (eDNA) sequences from the Australian Microbiome initiative. Five new species, , and , are described, is transferred to , and a key is provided for the six named species in the region. and are reported from Australia for the first time based on detections from eDNA in soil samples taken from native forests. The Australasian species of occupy a highly derived position with the phylogeny of the genus, the members of which are otherwise all from the Northern Hemisphere, suggestive of a long-distance dispersal origin for the Australasian species.
柄盖伞目真菌是担子菌门、主要为Hydnoid 型、外生菌根真菌。一些物种的数量明显减少，有些被列为易危或濒危物种。这些生态问题需要一个完善的分类学来理解该真菌群的多样性，并促进保护。然而，系统发育研究大多忽略了南半球的代表。本研究使用形态分析和核 rDNA 内部转录间隔区 ITS1-5.8S-ITS2（ITS 条码）和核 28S rDNA（28S）序列 5'端 D1-D2 区的系统发育分析，研究了澳大利亚和新西兰本土森林中的肉质柄盖伞目真菌。从菌物标本馆收集的 DNA 中扩增和从澳大利亚微生物组倡议的环境 DNA（eDNA）序列中，描述了五个新种，将 转移到 ，并提供了该地区六个命名种的关键特征。根据从取自原生林的土壤样本中提取的 eDNA 的检测结果，首次报道了 和 在澳大利亚的存在。澳大利亚的 种处于属的高度衍生位置，而属的其他成员均来自北半球，这表明澳大利亚的物种可能是长距离散布而来。
