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Abstract Detail


MSA - Systematics/Evolution

Bonito, Gregory [1], Vilgalys, Rytas [1].

Multigene phylogeny of truffes in the genus Tuber.

The genus Tuber, known commonly as 'the true truffles', are highly valued for their delicious and beguiling underground fruitbodies. These ectomycorrhizal fungi that are found in association with gymnosperm and angiosperm tree hosts as well as with some orchard species. In spite of their notoriety, the taxonomy of Tuber species is still in a confused state. By employing multi-locus DNA sequences (i.e. ITS, LSU, RPB2, EF1a) phylogenetic relationships and species concepts of Asian, European and North American Tuber species were assessed. Tuber was well supported as monophyletic (and sister to Choiromyces) and nine major clades were resolved (Aestivum, Excavatum, Magnatum, Rufum, Melanosporum, Macrosporum, Gibbosum, Puberulum, Maculatum). Although 85 Tuber species have previously been described and validated, Tuber could have well over 130 species. Several new Tuber species and phylogeographic inferences for the genus will be discussed.


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Related Links:
http://www.duke.edu/~gmb2/index.html
Tuber project website


1 - Duke University, Department of Biology, 139 Biological Sciences Building, PO Box 90338, Durham, North Carolina, 27708, USA

Keywords:
none specified

Presentation Type: Oral Paper:Papers for Topics
Session: 26
Location: Cottonwood D/Snowbird Center
Date: Monday, July 27th, 2009
Time: 1:45 PM
Number: 26002
Abstract ID:661


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