Two New Species of Fibrodontia (Trechisporales, Basidiomycota) with a Key to Worldwide Species

Fibrodontia is a genus of wood-inhabiting fungi consisting of four species so far, including F. gossypina as generic type. Two new species, Fibrodontia austrosinensis and F. subalba, are described and illustrated from China....

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Autores principales:	Shi-Liang Liu, Shuang-Hui He, Dong-Mei Liu, Li-Wei Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	2 new taxa corticioid fungi <i>Cystidiodendron</i> <i>Hydnodontaceae</i> taxonomy wood-inhabiting fungi Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/726e2f1aab8847369f0a8cb51bd8d14b
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spelling	oai:doaj.org-article:726e2f1aab8847369f0a8cb51bd8d14b2021-11-25T18:06:30ZTwo New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species10.3390/jof71109822309-608Xhttps://doaj.org/article/726e2f1aab8847369f0a8cb51bd8d14b2021-11-01T00:00:00Zhttps://www.mdpi.com/2309-608X/7/11/982https://doaj.org/toc/2309-608X<i>Fibrodontia</i> is a genus of wood-inhabiting fungi consisting of four species so far, including <i>F. gossypina</i> as generic type. Two new species, <i>Fibrodontia austrosinensis</i> and <i>F. subalba</i>, are described and illustrated from China. <i>Fibrodontia austrosinensis</i> from southwestern China is characterized by a grandinioid to odontioid hymenophore with numerous small aculei, a dimitic hyphal system with scattered, smooth skeletal hyphae and ellipsoid basidiospores measuring 4.2–5.2 × 3.5–4.5 μm. <i>Fibrodontia subalba</i> from the West Tianshan Mountain in northwestern China is distinguished by an odontioid to hydnoid hymenophore, a dimitic hyphal system, and ellipsoid basidiospores measuring 3.7–4.4 × 2.8–3.4 μm. The phylogenies inferred from the data set of nuc rDNA ITS1-5.8S-ITS2 (ITS) and D1–D2 domains of nuc 28S rDNA (28S), and that of ITS, 28S, translation elongation factor (<i>tef1α</i>), and RNA polymerase II second largest subunit (<i>rpb2</i>) supported <i>Fibrodontia</i> as a monophyletic genus in the <i>Trechisporales,</i> and <i>F. austrosinensis</i> and <i>F. subalba</i> as separate lineages within <i>Fibrodontia</i>. Multi-rate Poisson Tree Processes, Automatic Barcode Gap Discovery and genetic distance methods based on ITS sequences of <i>Fibrodontia</i> also supported <i>F. austrosinensis</i> and <i>F. subalba</i> as distinct species. The taxonomic status of <i>F. fimbriata</i> that was recently transferred from <i>Cystidiodendron</i>, is briefly discussed. A key to all six known species of <i>Fibrodontia</i> is provided.Shi-Liang LiuShuang-Hui HeDong-Mei LiuLi-Wei ZhouMDPI AGarticle2 new taxacorticioid fungi<i>Cystidiodendron</i><i>Hydnodontaceae</i>taxonomywood-inhabiting fungiBiology (General)QH301-705.5ENJournal of Fungi, Vol 7, Iss 982, p 982 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	2 new taxa corticioid fungi <i>Cystidiodendron</i> <i>Hydnodontaceae</i> taxonomy wood-inhabiting fungi Biology (General) QH301-705.5
spellingShingle	2 new taxa corticioid fungi <i>Cystidiodendron</i> <i>Hydnodontaceae</i> taxonomy wood-inhabiting fungi Biology (General) QH301-705.5 Shi-Liang Liu Shuang-Hui He Dong-Mei Liu Li-Wei Zhou Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
description	<i>Fibrodontia</i> is a genus of wood-inhabiting fungi consisting of four species so far, including <i>F. gossypina</i> as generic type. Two new species, <i>Fibrodontia austrosinensis</i> and <i>F. subalba</i>, are described and illustrated from China. <i>Fibrodontia austrosinensis</i> from southwestern China is characterized by a grandinioid to odontioid hymenophore with numerous small aculei, a dimitic hyphal system with scattered, smooth skeletal hyphae and ellipsoid basidiospores measuring 4.2–5.2 × 3.5–4.5 μm. <i>Fibrodontia subalba</i> from the West Tianshan Mountain in northwestern China is distinguished by an odontioid to hydnoid hymenophore, a dimitic hyphal system, and ellipsoid basidiospores measuring 3.7–4.4 × 2.8–3.4 μm. The phylogenies inferred from the data set of nuc rDNA ITS1-5.8S-ITS2 (ITS) and D1–D2 domains of nuc 28S rDNA (28S), and that of ITS, 28S, translation elongation factor (<i>tef1α</i>), and RNA polymerase II second largest subunit (<i>rpb2</i>) supported <i>Fibrodontia</i> as a monophyletic genus in the <i>Trechisporales,</i> and <i>F. austrosinensis</i> and <i>F. subalba</i> as separate lineages within <i>Fibrodontia</i>. Multi-rate Poisson Tree Processes, Automatic Barcode Gap Discovery and genetic distance methods based on ITS sequences of <i>Fibrodontia</i> also supported <i>F. austrosinensis</i> and <i>F. subalba</i> as distinct species. The taxonomic status of <i>F. fimbriata</i> that was recently transferred from <i>Cystidiodendron</i>, is briefly discussed. A key to all six known species of <i>Fibrodontia</i> is provided.
format	article
author	Shi-Liang Liu Shuang-Hui He Dong-Mei Liu Li-Wei Zhou
author_facet	Shi-Liang Liu Shuang-Hui He Dong-Mei Liu Li-Wei Zhou
author_sort	Shi-Liang Liu
title	Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
title_short	Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
title_full	Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
title_fullStr	Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
title_full_unstemmed	Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species
title_sort	two new species of <i>fibrodontia</i> (<i>trechisporales</i>, <i>basidiomycota</i>) with a key to worldwide species
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/726e2f1aab8847369f0a8cb51bd8d14b
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Two New Species of <i>Fibrodontia</i> (<i>Trechisporales</i>, <i>Basidiomycota</i>) with a Key to Worldwide Species

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