Journal
JOURNAL OF FUNGI
Volume 8, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/jof8050500
Keywords
Ascomycota; Hypoxylon; multigene phylogeny; taxonomy; wood-decomposing fungi; Xylariales
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Funding
- National Natural Science Foundation of China [31972848, 31770023]
- Central Public-interest Scientific Institution Basal Research Fund for Chinese Academy of Tropical Agricultural Sciences [1630032022001, 1630052022003, 1630052022042]
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Three new species of hypoxylaceous fungi were discovered in Medog county, China, through morphological and multi-gene phylogenetic analyses. A key to all known Hypoxylon species from China and related species worldwide is provided.
During a survey of hypoxylaceous fungi in Medog county (Tibet Autonomous Region, China), three new species, including Hypoxylon damuense, Hypoxylon medogense, and Hypoxylon zangii, were described and illustrated based on morphological and multi-gene phylogenetic analyses. Hypoxylon damuense is characterized by its yellow-brown stromatal granules, light-brown to brown ascospores, and frequently indehiscent perispore. Hypoxylon medogense is morphologically and phylogenetically related to H. erythrostroma but differs in having larger ascospores with straight spore-length germ slit and conspicuously coil-like perispore ornamentation. Hypoxylon zangii shows morphological similarities to H. texense but differs in having Amber (47), Fulvous (43) and Sienna (8) KOH-extractable pigments and larger ascospores with straight spore-length germ slit. The multi-gene phylogenetic analyses inferred from the datasets of ITS-RPB2-LSU-TUB2 supported the three new taxa as separate lineages within Hypoxylon. A key to all known Hypoxylon species from China and related species worldwide is provided.
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