Multi-gene phylogeny for Ophiostoma spp. reveals two new species from Protea infructescences

Ophiostoma represents a genus of fungi that are mostly arthropod-dispersed and have a wide global distribution. The best known of these fungi are carried by scolytine bark beetles that infest trees, but an interesting guild of Ophiostoma spp. occurs in the infructescences of Protea spp. native to So...

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Bibliographic Details
Published in:Studies in mycology 2006-01, Vol.55 (1), p.199-212
Main Authors: Roets, F, Beer, Z.W. de, Dreyer, L.L, Zipfel, R, Crous, P.W, Wingfield, M.J
Format: Article
Language:English
Subjects:
bark beetles
coleoptera
complex
genus
ITS
LSU
mycangial fungi
Ophiostoma
Phylogeny
Protea
scolytidae
south-africa
sp-nov
survival
symbiosis
Β-Tubulin
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Summary:Ophiostoma represents a genus of fungi that are mostly arthropod-dispersed and have a wide global distribution. The best known of these fungi are carried by scolytine bark beetles that infest trees, but an interesting guild of Ophiostoma spp. occurs in the infructescences of Protea spp. native to South Africa. Phylogenetic relationships between Ophiostoma spp. from Protea infructescences were studied using DNA sequence data from the β-tubulin, 5.8S ITS (including the flanking internal transcribed spacers 1 and 2) and the large subunit DNA regions. Two new species, O. phasma sp. nov. and O. palmiculminatum sp. nov. are described and compared with other Ophiostoma spp. occurring in the same niche. Results of this study have raised the number of Ophiostoma species from the infructescences of serotinous Protea spp. in South Africa to five. Molecular data also suggest that adaptation to the Protea infructescence niche by Ophiostoma spp. has occurred independently more than once. Taxonomic novelties:Ophiostoma phasma Roets, Z.W. de Beer& M.J. Wingf. sp. nov., Ophiostoma palmiculminatum Roets, Z.W. de Beer & M.J. Wingf. sp. nov.
ISSN:0166-0616
1872-9797
DOI:10.3114/sim.55.1.199