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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Mycology and Nematology Genetic Diversity and Biology Laboratory » Research » Publications at this Location » Publication #340994

Research Project: Systematics and Diagnostics of Emerging and Quarantine-Significant Plant Pathogenic Fungi

Location: Mycology and Nematology Genetic Diversity and Biology Laboratory

Title: A phylogenetically-based nomenclature for Cordycipitaceae (Hypocreales)

Author
item Kepler, Ryan - University Of Maryland
item Luangsa-ard, Jennifer - Biotec-Nstda
item Hywel-jones, Nigel - Zhejiang University
item Quandt, Alysha - University Of Michigan
item Sung, Gi-ho - Kangwon National University
item Rehner, Stephen
item Aime, M - Purdue University
item Henkel, Terry - Humboldt State University
item Sanjuan, Tatiana - University Of Antioquia
item Rasoul, Zare - Iranian Research Institute Of Plant Protection
item Chen, M - Key Laboratory Of Textile Science & Technology
item Rossman, Amy - Oregon State University
item Spatafora, Joseph - Oregon State University
item Shrestha, Bhushan - Mushtech Cordyceps Research Institute
item Li, Zengszhi - Zheijiang University

Submitted to: IMA Fungus
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/30/2017
Publication Date: 11/21/2017
Citation: Kepler, R., Luangsa-Ard, J.J., Hywel-Jones, N.L., Quandt, A.C., Sung, G., Rehner, S.A., Aime, M.C., Henkel, T.W., Sanjuan, T., Rasoul, Z., Mingjun, C., Li, Z., Rossman, A.Y., Spatafora, J.W., Shrestha, B. 2017. A phylogenetically-based nomenclature for Cordycipitaceae (Hypocreales). IMA Fungus. 8(2):335-353. https://doi.org/10.5598/imafungus.2017.08.02.08

Interpretive Summary: Accurate standards for identification of agriculturally beneficial fungi are essential to precise communication about insect pathogenic fungi used in insect biological control. Investigations of insect pathogenic fungi using molecular methods have shown that traditional classifications based on their physical appearance are inaccurate. In this study we determined genetic relationships among insect pathogenic fungi, including several species important in insect biological control, and used this information to develop a revised classification for these fungi. This new classification resolves longstanding points of taxonomic confusion and provides biologically accurate standards for grouping species that will facilitate scientific communication and research. This information will be used by insect mycologists and pathologists investigating and implementing integrated pest management strategies for field crop pests.

Technical Abstract: Changes in Article 59 of the International Code of Nomenclature for algae, fungi, and plants (ICN) disallow the use of dual nomenclatural systems for fungi. This change requires the reconciliation of competing names, ideally linked through culture based or molecular methods. The phylogenetic systematics of Hypocreales and its many genera have received extensive study in the last two decades, however resolution of competing names in Cordycipitaceae has not yet been addressed. In this paper we present a molecular phylogenetic investigation of Cordycipitaceae that enables identification of competing names in this family, and provides the basis upon which these names can be maintained or suppressed. The taxonomy presented here seeks to harmonize resolution of competing names by principles of priority, recognition of monophyletic groups, and the practical usage of affected taxa. In total, we propose to maintain nine generic names including Akanthomyces, Ascopolyporus, Beauveria, Cordyceps, Engyodontium, Gibellula, Hyperdermium, Parengyodontium and Simplicillium and the suppression of eight generic names including Evlachovaea, Granulomanus, Isaria, Lecanicillium, Microhilum, Phytocordyceps, Synsterigmatocystis, and Torrubiella. Two new genera, Hevansia and Blackwelliella, and a new species, Beauveria blattidicola, are described. The following new combinations are proposed: Akanthomyces attenuatus, A. coccidioperitheciatus, A. lecanii, A. muscarius, A. sabanense, A. tuberculatus, Beauveria acridophila, B. diapheromeriphila, B. locustiphila, B. scarabaeidicola, B. staphylinidicola, Blackwelliella cardinalis, Bl. pseudomilitaris, Cordyceps amoenerosea, C. cateniannulata, C. cateniobliqua, C. cicadae, C. coleopterorum, C. farinosa, C. fumosorosea, C. ghanensis, C. javanica, C. kintrischica, C. locusticola, C. oncoperae, C. poprawskii, C. tenuipes, Hevansia arachnophila, H. cinerea, H. koratensis, H. longispora, H. nelumboides, H. novoguineensis, H. ovolongata, and H. websteri.