Notes on Ceratocystis brunnea and some other Ophiostoma species based on partial ribosomal DNA sequence analysis
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Date
2003-08-30T18:25:40Z
Authors
Hausner, G
Reid, J
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Abstract
Ribosomal gene sequence data were obtained from a nonfruiting culture originally identified as Ceratocystis brunnea R.W. Davidson; this species was considered a nomen dubium by Upadhyay (1981) due to a presumptive lack of teleomorph material. The data showed that C. brunnea is a valid species that should be transferred to Ophiostoma, demonstrating that DNA data can compensate for the presumed or actual lack of morphological features lost during either long-term culturing or disintegration of holotype specimens. Use of partial large ribosomal sequence data to assess the relationship of C. brunnea to other Ophiostoma spp. showed that it is not a synonym of Ophiostoma piliferum (Fr.:Fr.) Syd. & P. Syd. as has been suggested; instead, it appears to be distantly related to Ophiostoma piceae (Munch) Syd. & P. Syd. The data obtained for the Ophiostoma piliferum strains included in this study suggest that hardwood-derived isolates may be distinct from those obtained from conifers. In addition, molecular characters support transferring Ceratocystis pseudonigra Olchow. & Reid, Ceratocystiopsis concentrica (Olchow. & Reid) Upadhyay, Ceratocystiopsis pallidobrunnea (Olchow. & Reid) Upadhyay, and Ceratocystiopsis crenulata (Olchow. & Reid) Upadhyay to Ophiostoma.
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Keywords
rDNA, phylogenetics, Ophiostoma piliferum, Ophiostoma, Ceratocystsis, GENUS CERATOCYSTIS, SP-NOV, FUNGI, PHYLOGENY, ANAMORPHS, LEPTOGRAPHIUM, REAPPRAISAL, COLEOPTERA, CHARACTERS, PHIALIDES
Citation
0008-4026; CAN J BOT, AUG 2003, vol. 81, no. 8, p.865 to 876.