Mycosarcoma (Ustilaginaceae), a resurrected generic name for corn smut (Ustilago maydis) and its close relatives with hypertrophied, tubular sori
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Date
Authors
McTaggart, Alistair R.
Shivas, Roger G.
Boekhout, Teun
Oberwinkler, Franz
Vanky, Kalman
Pennycook, Shaun R.
Begerow, Dominik
Journal Title
Journal ISSN
Volume Title
Publisher
International Mycological Association
Abstract
Ustilago is a polyphyletic genus of smut fungi found mainly on Poaceae. The development of
a taxonomy that reflects phylogeny requires subdivision of Ustilago into smaller monophyletic genera.
Several separate systematic analyses have determined that Macalpinomyces mackinlayi, M. tubiformis,
Tolyposporella pachycarpa, Ustilago bouriquetii and U. maydis, occupy a unique phylogenetic position
within the Ustilaginaceae. A previously introduced monotypic generic name typified by U. maydis,
Mycosarcoma, is available to accommodate these species, which resolves one component of polyphyly
for Ustilago s. lat. in Ustilaginaceae. An emended description of Mycosarcoma is provided to reflect the
morphological synapomorphies of this monophyletic group. A specimen of Ustilago maydis that has had
its genome sequenced is designated as a neotype for this species. Taxonomic stability will further be
provided by a forthcoming proposal to conserve the name Uredo maydis over Lycoperdon zeae, which
has priority by date, in order to preserve the well-known epithet maydis.
Description
Keywords
Model organism, Name change, Pseudozyma, Synapomorphy, Taxonomy, Ustilaginomycotina
Sustainable Development Goals
Citation
McTaggart, AR< Shivas, RG, Boekhout, T, Oberwinkler, F, Vánky, K, Pennycook, SR & Begerow, D 2016, 'Mycosarcoma (Ustilaginaceae), a resurrected generic name for corn smut (Ustilago maydis) and its close relatives with hypertrophied, tubular sori', IMA Fungus, vol. 7, no. 2, pp. 309-315.