Morphological and molecular characterization of threeAgaricusspecies from tropical Asia (Pakistan, Thailand) reveals a new group in sectionXanthodermatei

• DOI: 10.3852/14-076
• Publication Date: 2014-11-25T00:37:59Z
• Authors: Naritsada Thongklang; Rizwana Nawaz; Abdul N. Khalid; Jie Chen; Kevin D. Hyde; Ruilin Zhao; Luis A. Parra; Muhammad Hanif; Magalie Moinard; Philippe Callac
• Keywords: Monophyly; Agaricus; Lineage (genetic); Molecular Phylogenetics; Pileus

The genus Agaricus is known for its medicinal and edible species but also includes toxic that belong to section Xanthodermatei. Previous phylogenetic reconstruction temperate species, based on sequence data of nuc rRNA gene (rDNA) internal transcribed spacers (ITS), has revealed two major groups in this a possible third lineage A. pseudopratensis. Recent research shown classifications need improving with the addition tropical taxa. In study we add new collections We describe three from made Pakistan Thailand include them larger analysis using all available ITS bisporiticus sp. nov. fuscopunctatus are introduced molecular morphological studies, whereas microvolvatulus recorded first time Asia. Specimens however have much pileus than type specimens Congo. maximum likelihood (ML) parsimony (MP) analyses these cluster pseudopratensis Mediterranean area murinocephalus recently described Thailand. Xanthodermatei group monophyletic receives low bootstrap support previously receive strong support. Within group, most closely related share some traits, did not find any unifying character; five unique short nucleotide sequence. Two putatively now recognized six