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Mycological Progress
Vol. 15 (7), 2016, Pages: 731–742

Taxonomy and multi-gene phylogeny of Haploporus (Polyporales, Basidiomycota)

Lu-Lu Shen, Jia-Jia Chen, Min Wang, Bao-Kai Cui

Institute of Microbiology, Beijing Forestry University, Beijing, China.


Taxonomic and phylogenetic studies of Haploporus were carried out. Three species in HaploporusH. cylindrosporusH. septatus and H. subpapyraceus, are described as new based on morphological differences and molecular phylogenetic analyses inferred from the internal transcribed spacer (ITS), the large subunit nuclear ribosomal RNA gene (nLSU), the small subunit mitochondrial rRNA gene (mtSSU), the second subunit of RNA polymerase II (rpb2) and the translation elongation factor 1-α gene (TEF1) sequences. Haploporus cylindrosporus is characterized by big irregular crystals occasionally present in the subiculum, an abundant oily substance among hyphae and typically cylindrical basidiospores 10–11.5×4.5–5 μm; H. septatus differs from other species in the genus by its leathery to corky basidiomata when dry, small round pores (5–6 per mm), simple septate skeletal hyphae at the edge of the dissepiments, and oblong to ellipsoid basidiospores 8.5–11×5–6 μm; H. subpapyraceus is separated by white to cream basidiomata, numerous apically simple septate cystidioles and ellipsoid basidiospores 9–12×5.5–8 μm. An identification key to accepted species of Haploporus is provided.

Keywords: Multi-marker analysis, Phylogeny, Polyporaceae, Taxonomy, Wood-rotting fungi.

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