Phylogenetic relationship of the coelomycete genus Infundibulomyces based on nuclear rDNA data

Abstract

The phylogenetic relationship of the coelomycete genus Infundibulomyces with cupulate conidiomata was assessed by ribosomal DNA sequences of partial small subunit (SSU) and partial large subunit (LSU) regions using maximum parsimony and Bayesian analysis. The genus has no known teleomorph. A new species, Infundibulomyces oblongisporus, is described from collections on a senescent angiosperm leaf from Thailand based on morphological and phylogenetic evidence. Both Infundibulomyces species form a monophyletic group in the Chaetosphaeriaceae (Chaetosphaeriales, Sordariomycetidae) with Dictyochaeta simplex as a sister clade. Chaetosphaeriaceae with a coelomycete anamorph has not been reported previously.

• Chaetosphaeriales
• coelomycetes
• Infundibulomyces
• molecular phylogeny
• systematics

This work was supported by Thailand Research Fund (TRF) and National Center for Genetic Engineering and Biotechnology (BIOTEC) under the Biodiversity Research and Training Program (BRT) grant No. BRT R_249005. We thank Prof Morakot Tanticharoen and Dr Kanyawim Kirtikara for their continued support.