Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 54, Issue 3, Pages 957-969Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2009.12.015
Keywords
Ascomycota; Macrotermitine termites; Molecular phylogeny; Systematics; Xylariaceae; Xylarioideae
Funding
- National Science Council of ROC [NSC 95-2311-B-001-048-MY3]
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To infer the phylogenetic relationships of Xylaria species associated with termite nests within the genus Xylaila and among genera of the Subfamily Xylarioideae, beta-tubulin, RPB2, and alpha-actin sequences of 131 cultures of 114 species from Xylaria and 11 other genera of the subfamily were analyzed. These I I genera included Astrocystis, Amphirosellinia, Discoxylaria, Entoleuca, Euepixylon, Kretzschmaria, Nemania, Podosordaria, Porcinia, Rosellinia, and Stilbohypoxylon. We showed that Xylaria species were distributed among three major clades, TE, HY, and PO, with clade TE-an equivalent of the subgenus Pseudoxylana-encompassing exclusively those species associated with termite nests and the other two clades containing those associated with substrates other than termite nests. Xylaria appears to be a paraphyletic genus, With most of the I I genera submerged within it. Podosordaria and Poronia, which formed a distinct clade, apparently diverged from Xylaria and the other genera early. Species of Entoleuca, Euepixylon, Nemania, and Rosellinia Constituted clade NR, a major clade sister to clade PO, while those of Kretzschmaria were inserted within clade HY and those of Astrocystis, Amphirosellinia, Discoxylaria, and Stilbohypoxylon were within clade PO. (C) 2009 Elsevier Inc. All rights reserved.
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