IMA Fungus 1(2): 117-122, doi: 10.5598/imafungus.2010.01.02.03
What is Johansonia?
Pedro Crous‡, Robert W. Barreto§, Acelino C. Alfenas|, Rafael F. Alfenas¶, Johannes Z. Groenewald#‡ Westerdijk Fungal Biodiversity Institute, Utrecht, Netherlands§ Universidade Federal de Viçosa, Departamento de Fitopatologia, Viçosa, Brazil| Universidade Federal de Viçosa, Department of Plant Pathology, Viçosa, Brazil¶ Universidade Federal de Viçosa, Departemento de Fitopatologia, Viçosa, Brazil# CBS-KNAW Fungal Biodiversity Centre, Utrecht
© Pedro Crous, Robert Barreto, Acelino Alfenas, Rafael Alfenas, Johannes Groenewald. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY-NC 4.0), which permits to copy and distribute the article for non-commercial purposes, provided that the article is not altered or modified and the original author and source are credited. Citation:
Crous P, Barreto RW, Alfenas AC, Alfenas RF, Groenewald JZ (2010) What is Johansonia? IMA Fungus 1(2): 117-122. https://doi.org/10.5598/imafungus.2010.01.02.03 |  |
Abstract
The bitunicate ascomycete genus Johansonia is presently treated as a member of Saccardiaceae, a family regarded as incertae sedis within the Ascomycota. Recent collections on leaves of a leguminous host, Dimorphandra mollis, in Mato Grosso, Brazil, led to the discovery of a new species of Johansonia, described here as J. chapadiensis. Based on DNA sequence data of the nuclear ribosomal DNA (LSU), Johansonia is revealed to represent a member of Dothideomycetes, Capnodiales. Although its family could not be resolved, it clustered basal to Schizothyriaceae and Mycosphaerellaceae, and could well represent a species of Saccardiaceae. DNA sequence data of other members of Saccardiaceae would be required, however, to confirm this classification.
Keywords
Dothideomycetes, Johansoniella, ITS, LSU, systematics