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Morphological and molecular characterization of three Agaricus species from tropical Asia (Pakistan, Thailand) reveals a new group in section Xanthodermatei.
Mycologia. 2014 Nov-Dec; 106(6):1220-32.M

Abstract

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

Authors+Show Affiliations

Institute of Excellence in Fungal Research and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.Department of Botany, University of the Punjab, Lahore, Pakistan.Department of Botany, University of the Punjab, Lahore, Pakistan.Institute of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.Institute of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.The State Key Lab of Mycology, Institute of Microbiology, Chinese Academic of Science, Beijing 100101, China.Avda. Padre Claret 7, 5° G, 09400 Aranda de Duero, Burgos, Spain.Department of Botany, Government College University, Lahore, Pakistan.INRA, UR 1264, Mycologie et Sécurité des Aliments, CS 20032, 33882 Villenave d'Ornon CEDEX, France.INRA, UR 1264, Mycologie et Sécurité des Aliments, CS 20032, 33882 Villenave d'Ornon CEDEX, France callac@bordeaux.inra.fr.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25152000

Citation

Thongklang, Naritsada, et al. "Morphological and Molecular Characterization of Three Agaricus Species From Tropical Asia (Pakistan, Thailand) Reveals a New Group in Section Xanthodermatei." Mycologia, vol. 106, no. 6, 2014, pp. 1220-32.
Thongklang N, Nawaz R, Khalid AN, et al. Morphological and molecular characterization of three Agaricus species from tropical Asia (Pakistan, Thailand) reveals a new group in section Xanthodermatei. Mycologia. 2014;106(6):1220-32.
Thongklang, N., Nawaz, R., Khalid, A. N., Chen, J., Hyde, K. D., Zhao, R., Parra, L. A., Hanif, M., Moinard, M., & Callac, P. (2014). Morphological and molecular characterization of three Agaricus species from tropical Asia (Pakistan, Thailand) reveals a new group in section Xanthodermatei. Mycologia, 106(6), 1220-32. https://doi.org/10.3852/14-076
Thongklang N, et al. Morphological and Molecular Characterization of Three Agaricus Species From Tropical Asia (Pakistan, Thailand) Reveals a New Group in Section Xanthodermatei. Mycologia. 2014 Nov-Dec;106(6):1220-32. PubMed PMID: 25152000.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Morphological and molecular characterization of three Agaricus species from tropical Asia (Pakistan, Thailand) reveals a new group in section Xanthodermatei. AU - Thongklang,Naritsada, AU - Nawaz,Rizwana, AU - Khalid,Abdul N, AU - Chen,Jie, AU - Hyde,Kevin D, AU - Zhao,Ruilin, AU - Parra,Luis A, AU - Hanif,Muhammad, AU - Moinard,Magalie, AU - Callac,Philippe, Y1 - 2014/08/24/ PY - 2014/8/26/entrez PY - 2014/8/26/pubmed PY - 2015/5/20/medline KW - basidiomycota KW - morphology KW - new species KW - phylogeny KW - tropical biodiversity SP - 1220 EP - 32 JF - Mycologia JO - Mycologia VL - 106 IS - 6 N2 - The genus Agaricus is known for its medicinal and edible species but also includes toxic species that belong to section Xanthodermatei. Previous phylogenetic reconstruction for temperate species, based on sequence data of nuc rRNA gene (rDNA) internal transcribed spacers (ITS), has revealed two major groups in this section and a possible third lineage for A. pseudopratensis. Recent research in Agaricus has shown that classifications need improving with the addition of tropical taxa. In this study we add new tropical collections to section Xanthodermatei. We describe three species from collections made in Pakistan and Thailand and include them in a larger analysis using all available ITS data for section Xanthodermatei. Agaricus bisporiticus sp. nov. and A. fuscopunctatus sp. nov. are introduced based on molecular and morphological studies, whereas A. microvolvatulus is recorded for the first time in Asia. Specimens from Thailand however have a much larger pileus than the type specimens from Congo. In maximum likelihood (ML) and maximum parsimony (MP) phylogenetic analyses these three species cluster with A. pseudopratensis from the Mediterranean area and A. murinocephalus recently described from Thailand. In Agaricus section Xanthodermatei this new group is monophyletic and receives low bootstrap support whereas the two previously known groups receive strong support. Within the new group, the most closely related species share some traits, but we did not find any unifying morphological character; however the five species of the group share a unique short nucleotide sequence. Two putatively toxic species of section Xanthodermatei are now recognized in Pakistan and six in Thailand. SN - 0027-5514 UR - https://www.unboundmedicine.com/medline/citation/25152000/Morphological_and_molecular_characterization_of_three_Agaricus_species_from_tropical_Asia__Pakistan_Thailand__reveals_a_new_group_in_section_Xanthodermatei_ L2 - http://www.tandfonline.com/doi/full/10.3852/14-076 DB - PRIME DP - Unbound Medicine ER -