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Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China

Abstract. Laetiporus is a cosmopolitan genus of brown rot fungi. In this study, L.medogensis and L.xinjiangensis are described as new species from western China, based on morphological and molecular evidence. L.medogensis has only been found on gymnosperms so far and is distinguished by pinkish-buff...

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Autores principales: Song, Jie, Sun, Yi-Fei, Ji, Xing, Dai, Yu-Cheng, Cui, Bao-Kai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6081469/
https://www.ncbi.nlm.nih.gov/pubmed/30116139
http://dx.doi.org/10.3897/mycokeys.37.26016
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author Song, Jie
Sun, Yi-Fei
Ji, Xing
Dai, Yu-Cheng
Cui, Bao-Kai
author_facet Song, Jie
Sun, Yi-Fei
Ji, Xing
Dai, Yu-Cheng
Cui, Bao-Kai
author_sort Song, Jie
collection PubMed
description Abstract. Laetiporus is a cosmopolitan genus of brown rot fungi. In this study, L.medogensis and L.xinjiangensis are described as new species from western China, based on morphological and molecular evidence. L.medogensis has only been found on gymnosperms so far and is distinguished by pinkish-buff to clay-buff pileal surface and buff-yellow pore surface, azonate to faintly zonate pileus and ellipsoid to ovoid basidiospores (5–6.2 × 4.2–5.2 μm). L.xinjiangensis is found on angiosperms and is characterised by pale-buff to clay-pink pileal surface, cream to light yellow pore surface, azonate to faintly zonate pileus, large pores (2–3 per mm) and small basidiospores (4.5–5 × 3–4.2 μm). The phylogeny of Laetiporus is reconstructed with multi-gene sequences including the internal transcribed spacer regions (ITS), the large subunit (nrLSU) and small subunit (nrSSU) of the nuclear ribosomal RNA gene, the small subunit of the mitochondrial rRNA gene (mtSSU), the translation elongation factor 1-α gene (EF-1α) and the second subunit of RNA polymerase II (RPB2). The results show that L.medogensis and L.xinjiangensis formed two distinct lineages belonging to Laetiporus. Illustrated descriptions of the two new species are presented. An identification key to species of L.sulphureus complex is provided.
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spelling pubmed-60814692018-08-16 Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China Song, Jie Sun, Yi-Fei Ji, Xing Dai, Yu-Cheng Cui, Bao-Kai MycoKeys Research Article Abstract. Laetiporus is a cosmopolitan genus of brown rot fungi. In this study, L.medogensis and L.xinjiangensis are described as new species from western China, based on morphological and molecular evidence. L.medogensis has only been found on gymnosperms so far and is distinguished by pinkish-buff to clay-buff pileal surface and buff-yellow pore surface, azonate to faintly zonate pileus and ellipsoid to ovoid basidiospores (5–6.2 × 4.2–5.2 μm). L.xinjiangensis is found on angiosperms and is characterised by pale-buff to clay-pink pileal surface, cream to light yellow pore surface, azonate to faintly zonate pileus, large pores (2–3 per mm) and small basidiospores (4.5–5 × 3–4.2 μm). The phylogeny of Laetiporus is reconstructed with multi-gene sequences including the internal transcribed spacer regions (ITS), the large subunit (nrLSU) and small subunit (nrSSU) of the nuclear ribosomal RNA gene, the small subunit of the mitochondrial rRNA gene (mtSSU), the translation elongation factor 1-α gene (EF-1α) and the second subunit of RNA polymerase II (RPB2). The results show that L.medogensis and L.xinjiangensis formed two distinct lineages belonging to Laetiporus. Illustrated descriptions of the two new species are presented. An identification key to species of L.sulphureus complex is provided. Pensoft Publishers 2018-07-31 /pmc/articles/PMC6081469/ /pubmed/30116139 http://dx.doi.org/10.3897/mycokeys.37.26016 Text en Jie Song, Yi-Fei Sun, Xing Ji, Yu-Cheng Dai, Bao-Kai Cui http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Song, Jie
Sun, Yi-Fei
Ji, Xing
Dai, Yu-Cheng
Cui, Bao-Kai
Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title_full Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title_fullStr Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title_full_unstemmed Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title_short Phylogeny and taxonomy of Laetiporus (Basidiomycota, Polyporales) with descriptions of two new species from western China
title_sort phylogeny and taxonomy of laetiporus (basidiomycota, polyporales) with descriptions of two new species from western china
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6081469/
https://www.ncbi.nlm.nih.gov/pubmed/30116139
http://dx.doi.org/10.3897/mycokeys.37.26016
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