title: Phylogenetic relationships of Nemania plumbea sp. nov. and related taxa based on ribosomal ITS and RPB2 sequences.
abstract: During a survey fungal diversity of xylariaceous fungi in Thailand, a new Nemania species, N. plumbea, was identified. Nemania plumbea is characterized by soft-textured grey stromata on a persistent mat of white hyphae, pale brown ascospores with a short germ-slit on the more convex side. It also produces a Geniculosporium-like anamorph in culture. In order to evaluate its phylogenetic relationships among related species and genera, ITS-5.8S rDNA and RPB2 were analysed separately and simultaneously. Results from the phylogenetic analyses indicate that there is close phylogenetic association between N. plumbea and N. aenea. A preliminary account into the natural grouping of Xylariaceae based on ITS-5.8S rDNA and RPB2 sequences is also discussed.
authors.affiliation: Centre for Research in Fungal Diversity, Department of Ecology & Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong, China. alvtangmc@yahoo.com.hk
authors.forename: Alvin M C
authors.initials: AM
authors.lastname: Tang
authors.forename: Rajesh
authors.initials: R
authors.lastname: Jeewon
authors.forename: Kevin D
authors.initials: KD
authors.lastname: Hyde
mesh_terms: D004271:DNA, Fungal / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D005656:Fungal Proteins / Q000235:genetics; D035901:Hypocrea; D010802:Phylogeny; D012319:RNA Polymerase II / Q000235:genetics; D012340:RNA, Ribosomal, 5.8S; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D013785:Thailand; D014934:Wood / Q000382:microbiology; D013098:Xylariales / Q000145:classification* / Q000166:cytology / Q000235:genetics
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D005656:Fungal Proteins; D012340:RNA, Ribosomal, 5.8S; C500816:POLR2B protein, human; D012319:RNA Polymerase II