Homepage

CHAPTER 1
CHAPTER 2
CHAPTER 3
CHAPTER 4
CHAPTER 5
CHAPTER 6
CHAPTER 7
CHAPTER 8
CHAPTER 9
CHAPTER 10
CHAPTER 11
CHAPTER 12
CHAPTER 13
CHAPTER 14
CHAPTER 15
CHAPTER 16
CHAPTER 17
CHAPTER 18
CHAPTER 19
CHAPTER 20
CHAPTER 21

Phylogeny of the anamorphic genus Chrysosporium and related taxa based on rDNA internal transcribed spacer sequences

Pilar Vidal1, María de los Angeles Vinuesa2, José María Sánchez-Puelles2,3 and Josep Guarro1

1Unitat de Microbiologia, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Spain;
2SmithKline Beecham, Centro de Investigación Básica, Tres Cantos, Madrid, Spain;
3Biosafety, Madrid, Spain
Phylogenetic relationships of 57 species of Chrysosporium and related species belonging to Onygenales and Sordariales were studied by analysing the nucleotide sequences of the 5·8S rRNA gene and their flanking ITS1 and ITS2 regions. Chrysosporium is a polyphyletic taxon with affiliations to at least two orders of the Ascomycota. The phylogenetic trees obtained in this study divided the genus into nine highly supported monophyletic groups (clades I-IX). However, relationships among these groups were not resolved. These groups were consistent for both methods of comparison (neighbor-joining and parsimony) and clearly correlated with groupings based on classical morphological criteria, enzymatic capabilities and teleomorph morphology. The genus Chrysosporium should be restricted to anamorphs of Onygenales, while Geomyces should be restricted to anamorphs of Myxotrichaceae and Myceliophthora to anamorphs of Sordariales. This study also demonstrates that several pairs of species are very similar, which suggests that they are synonymous, e.g. C. articulatum and A. reticulosporus; C. keratinophilum and A. keratinophilus and C. lucknowense and C. mephiticum.
 
 

PDF file

In: Kushwaha RKS, Guarro J (Eds.). Biology of Dermatophytes and other Keratinophilic Fungi.
Revista Iberoamericana de Micología, Bilbao, 2000.
 
 

2000-2017@ Revista Iberoamericana de Micología. All rights reserved.