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Berkleasmium crunisia sp. nov. and its phylogenetic affinities to the Pleosporales based on 18S and 28S rDNA sequence analyses.

Authors :
Pinnoi A
Jeewon R
Sakayaroj J
Hyde KD
Jones EB
Source :
Mycologia [Mycologia] 2007 May-Jun; Vol. 99 (3), pp. 378-84.
Publication Year :
2007

Abstract

Berkleasmium crunisia sp. nov. is described from a decaying rachis of Calamus sp. (Arecaceae) from Khuan Ka Long, Satun Province, Thailand. This Berkleasmium species differs morphologically from other species in possessing subtending cells and larger conidia. The phylogenetic relationship of the genus Berkleasmium among sexual ascomycetes also was examined. Sequence analyses from 18S, 28S and ITS-5.8S rDNA were analyzed phylogenetically under maximum parsimony, Bayesian and neighbor joining criteria. Phylogenies revealed that Berkleasmium is not monophyletic. Berkleasmium micronesicum and B. nigroapicale are related to Westerdykella cylindrica and Sporormia australis, which are members of the family Sporormiaceae (Pleosporales). Other species, including our new taxon, appear to share phylogenetic affinities with other anamorphic fungi, whose classification within the Pleosporales is still obscure. Analyses of 18S, 28S, ITS (+5.8S) rDNA and combined (18S+28S) gene sequences fail to give sufficient phylogenetic resolution within the Pleosporales.

Details

Language :
English
ISSN :
0027-5514
Volume :
99
Issue :
3
Database :
MEDLINE
Journal :
Mycologia
Publication Type :
Academic Journal
Accession number :
17883029
Full Text :
https://doi.org/10.3852/mycologia.99.3.378