Epitypification and neotypification: guidelines with appropriate and inappropriate examples

Ariyawansa, Hiran A. and Hawksworth, David L. and Hyde, Kevin D. and Jones, E. B. Gareth and Maharachchikumbura, Sajeewa S. N. and Manamgoda, Dimuthu S. and Thambugala, Kasun M. and Udayanga, Dhanushka and Camporesi, Erio and Daranagama, Anupama and Xu, Jian Chu and Jayawardena, Ruvishika and Liu, Jian Kui and Phookamsak, Rungtiwa and Senanayake, Indunil C. and Tian, Qing and McKenzie, Eric H C and Shivas, Roger G. (2014) Epitypification and neotypification: guidelines with appropriate and inappropriate examples. Fungal Diversity, 69 (1). pp. 57-91. ISSN 1560-2745

Abstract

A review of phylogenetic studies carried out together with morphological ones shows that a major problem with most early studies is that they concentrated on techniques and used material or strains of fungi that in most cases were not carefully reference, and in a worrying number of cases wrongly named. Most classical species, particularly of microfungi, are not represented by adequate type material, or other authoritatively identified cultures or specimens, that can serve as DNA sources for phylogenetic study, or for developing robust identification systems. Natural classifications of fungi therefore suffer from the lack of reference strains in resultant phylogenetic trees. In some cases, epitypification and neotypification can solve this problem and these tools are increasingly used to resolve taxonomic confusion and stabilize the understanding of species, genera, families, or orders of fungi. This manuscript discusses epitypification and neotypification, describes how to epitypify or neotypify species and examines the importance of this process. A set of guidelines for epitypification is presented. Examples where taxa have been epitypified are presented and the benefits and problems of epitypification are discussed. As examples of epitypification, or to provide reference specimens, a new epitype is designated for Paraphaeosphaeria michotii and reference specimens are provided for Astrosphaeriella stellata, A. bakeriana, Phaeosphaeria elongata, Ophiobolus cirsii, and O. erythrosporus. In this way we demonstrate how to epitypify taxa and its importance, and also illustrate the value of proposing reference specimens if epitypification is not advisable. Although we provided guidelines for epitypification, the decision to epitypify or not lies with the author, who should have experience of the fungus concerned. This responsibility is to be taken seriously, as once a later typification is made, it may not be possible to undo that, particularly in the case of epitypes, without using the lengthy and tedious formal conservation and rejection processes.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 23 May 2017 22:26
Last Modified: 23 May 2017 22:26
Uncontrolled Keywords: Epitype; Generic types; Molecular data; Nomenclature; Systematics; Taxonomy; Typification;
Fields of Research : 06 Biological Sciences > 0607 Plant Biology > 060799 Plant Biology not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970106 Expanding Knowledge in the Biological Sciences
Identification Number or DOI: 10.1007/s13225-014-0315-4
URI: http://eprints.usq.edu.au/id/eprint/31364

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