A re-evaluation of the evolutionary relationships within the Xylariaceae based on ribosomal and protein-coding gene sequences

Alvin TANG, R. Jeewon, K. D. Hyde

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)

Abstract

Previous phylogenetic analyses of the Xylariaceae have mostly utilized ITS-5.8S gene sequences and there is no multigene study that have addressed evolutionary relationships. We conducted phylogenetic analyses with separate and combined sequences of ITS-5.8S rDNA, LSU rDNA, RPB2 and β-tubulin genes to re-evaluate the generic relationships within the Xylariaceae. AU phylogenies inferred from individual and combined datasets suggest that Xylariaceae has two main lineages, namely Hypoxyloideae and Xylarioideae. This result is generally concordant with taxon chemotaxonomy and anamorph characters. The phylogenetic position and relationship of Biscogniauxia and Camillea with other xylariaceous genera are still obscure as they nested together and form a separate lineage. The phylogenetic significance of morphological affinities within Hypoxyloideae and Xylarioideae are discussed and phylogenetic positions of selected genera are re-evaluated.

Original languageEnglish
Pages (from-to)127-155
Number of pages29
JournalFungal Diversity
Volume34
Publication statusPublished - 31 Jan 2009

Scopus Subject Areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

User-Defined Keywords

  • β-tubulin
  • Ascomycetes
  • ITS rDNA
  • LSU rDNA
  • Molecular systematics
  • RPB2

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