The Genus Xanthagaricus : An Updated Global Species Distribution and Phylogeny with the Description of Two New Species from Oman.

Autor: Al-Kharousi M; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Hussain S; Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al Khoud 123, Oman., Al-Muharabi MA; Sultan Qaboos Comprehensive Cancer Care & Research Center, P.O. Box 566, Al Khoud 123, Oman., Al-Shabibi Z; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Al-Maqbali D; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Al-Balushi AH; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Al-Yahya'ei MN; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Al-Saady N; Oman Animal and Plant Genetic Resources Center (Mawarid), Ministry of Higher Education, Research and Innovation, P.O. Box 515, Muscat 123, Oman., Velazhahan R; Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al Khoud 123, Oman., Al-Sadi AM; Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al Khoud 123, Oman.
Jazyk: angličtina
Zdroj: Journal of fungi (Basel, Switzerland) [J Fungi (Basel)] 2022 Feb 10; Vol. 8 (2). Date of Electronic Publication: 2022 Feb 10.
DOI: 10.3390/jof8020173
Abstrakt: Xanthagaricus is a saprotrophic mushroom genus with small-sized basidiomata in the family Agaricaceae (Agaricales). Prior to this study, 26 species belonging to this genus have been described and published. In this study, we reported Xanthagaricus for the first time from Oman with the description of two new species. Basidiomata of the new species Xanthagaricus appendiculatus and X. omanicus were collected during the monsoon rains of summer in 2018 in the southern coastal region of Oman. Species descriptions are based on morphological and molecular characterization. Phylogenetic analyses based on internal transcribed spacer region (ITS1-5.8S-ITS2 = ITS) of the nuclear ribosomal DNA clustered the new species in the Xanthagaricus clade with strong statistical support. The new species Xanthagaricus appendiculatus can be distinguished from other species by its purplish pileus with umbonate disc and X. omanicus with the largest pileus (70-90 mm diameter) among the known species of the genus. A detailed description, photographs, line drawings, and a phylogenetic tree showing the position of both new species are provided. A dichotomous key to the known taxa of Xanthagaricus is proposed. Morphological comparisons of new species with known Xanthagaricus taxa are provided. Our observations highlight the diversity of Xanthagaricus and other lepiotaceous mushrooms in southern Oman and further document the need for additional systematic focus on the region's fungi.
Databáze: MEDLINE
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