Relationships among Amylostereum species associated with siricid woodwasps inferred from mitochondrial ribosomal DNA sequences
| Autor: | Brenda D. Wingfield, Michael J. Wingfield, Teresa A. Coutinho, Bernard Slippers |
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| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Mycologia. 92:955-963 |
| ISSN: | 1557-2536 0027-5514 |
| DOI: | 10.1080/00275514.2000.12061239 |
| Popis: | The genus Amylostereum currently in- cludes four species, namely A. areolatum, A. chailletii, A. laevigatum and A. ferreum. Two of these species, A. areolatum and A. chailletii, are well known for their association with siricid woodwasps. Despite much in- terest in these fungus-woodwasp symbioses, the tax- onomy and phylogeny of this genus received little attention in the past. The aim of this study was to investigate the phylogenetic relationship between the four species of Amylostereum. The placement of Amy- lostereum spp. among the Basidiomycetes was also in- vestigated based on mt-SSU-rDNA sequence analyses. These data also clarify the taxonomic status of pre- viously unidentified isolates. In this study, we have shown that A. areolatum is more distantly related to the three other species of Amylostereum, than they are to each other. Of the remaining three species, A. fer- reum and A. laevigatum are more closely related to each other. One isolate that was collected from Sirex areolatus, and, therefore, expected to be A. chailletii, was more closely related to A. laevigatum and A. fer- reum. As neither of the latter species have been im- plicated in associations with woodwasps, this finding warrants further investigation. Our data show that Amylostereum spp. group with neither Stereum nor Peniophora, as has been previously hypothesised, but rather with Echinodontium tinctorium. From this and |
| Databáze: | OpenAIRE |
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