Molecular systematics of the Amphisphaeriaceae based on cladistic analyses of partial LSU rDNA gene sequences.
The Amphisphaeriaceae is an important family of ascomycetes within the Xylariales. There has been, however, disagreement regarding the taxonomic placement of many genera within this family and whether it should be confined to ascomycetes producing Pestalotiopsis-like anamorphs. In this study, phylogenetic relationships among members of the Amphisphaeriaceae are investigated using partial sequences of the 28S rDNA. Molecular data provided further evidence to support the association of several coelomycetous genera with the ascomycetous Amphisphaeriaceae. Phylogenetic analyses also show that all ascomycetous genera possessing Pestalotiopsis-like anamorphs are monophyletic and confirm the anamorphic-teleomorphic connections of some. There is, however, insufficient evidence to support the restriction of Amphisphaeriaceae to genera, which produce Pestalotiopsis-like anamorphs, because the phylogenetic placement of Amphisphaeria umbrina is not fully resolved and its affinities with other members received low bootstrap support. The results also indicate that Iodosphaeria and Arecophila should be excluded from the Amphisphaeriaceae. The placement of Lanceispora in the Amphisphaeriaceae is doubtful. A broad concept of the family Amphisphaeriaceae is advocated until further data are available.
Jeewon
Rajesh
R
Department of Ecology & Biodiversity, Centre for Research in Fungal Diversity, Kadoorie Biological Sciences Building, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People's Republic of China. rjeewon@graduate.hku.hk
Liew
Edward C Y
EC
Hyde
Kevin D
KD
D001203:Ascomycota / Q000145:classification / Q000235:genetics*; D001483:Base Sequence; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012339:RNA, Ribosomal, 28S / Q000737:chemistry / Q000235:genetics*; D016415:Sequence Alignment
D004271:DNA, Fungal; D012339:RNA, Ribosomal, 28S