Mycological Progress

, Volume 1, Issue 1, pp 81–92

ITS rDNA sequence-based phylogenetic analysis of Tomentellopsis species from boreal and temperate forests, and the identification of pink-type ectomycorrhizas

  • Urmas Kõljalg
  • Hanna Tammi
  • Sari Timonen
  • Reinhard Agerer
  • Robin Sen
Article

DOI: 10.1007/s11557-006-0007-x

Cite this article as:
Kõljalg, U., Tammi, H., Timonen, S. et al. Mycol Progress (2002) 1: 81. doi:10.1007/s11557-006-0007-x

Abstract

Fungi in the genus Tomentellopsis were subjected to molecular phylogenetic analyses in order to clarify species-level relationships and mycorrhiza-forming ability with coniferous and deciduous trees. Fungal nucleotide sequence data from the internal transcribed spacer of nuclear ribosomal DNA (ITS rDNA) region were obtained from fruitbodies, ectomycorrhiza and pure cultures. Maximum parsimony (MP), distance (neighbor joining, NJ) and maximum likelihood (ML) analyses of aligned ITS sequences highlighted three clades designated T. echinospora, T. submollis and T. bresadoliana. Sporocarp tissue and ectomycorrhizas, or isolated mycelia, previously described as Pinirhiza rosea, Piceirhiza rosea or Pink were clearly identified in a strongly supported T. submollis clade. Host-linked population variation in this clade was also noted that may reflect active speciation activity. A fungus isolated from Beige-type mycorrhizas formed on Scots pine seedlings appeared in the paraphyletic T. echinospora clade which included sequences showing greater divergence. The data provide a primary classification of Tomentellopsis species that is urgently needed in assessment of the importance of resupinate thelephoroid fungi in mycorrhizal communities associated with trees in coniferous and deciduous forest ecosystems.

Copyright information

© DGfM 2002

Authors and Affiliations

  • Urmas Kõljalg
    • 1
    • 4
  • Hanna Tammi
    • 2
  • Sari Timonen
    • 2
  • Reinhard Agerer
    • 3
  • Robin Sen
    • 2
  1. 1.Institute of Botany and EcologyUniversity of TartuTartuEstonia
  2. 2.Department of Biosciences, Division of General Microbiology, Viikki BiocenterUniversity of HelsinkiFinland
  3. 3.Institute for Systematic Botany, Section MycologyUniversity of MünchenMünchenGermany
  4. 4.Institute of Zoology and BotanyEstonian Agricultural UniversityEstonia