Institute of Microbiology, University of Innsbruck, Technikerstraße 25, A-6020 Innsbruck, Austria.
Mycologia. 2004 Nov-Dec;96(6):1253-60.
The evolutionary history of the genus Omphalotus was inferred from DNA sequences of the ITS1-5.8S-ITS2 rDNA region. We analyzed 32 collections from different geographical areas: O. olearius (Europe), O. illudens (Europe, North America), O. subilludens (North America), O. olivascens var. olivascens (North America) and var. indigo (Mexico), O. mexicanus (Middle America), O. nidiformis (Australia), and O. japonicus (Japan). Phylogenetic analysis was performed declaring Nothopanus eugrammus as outgroup. Our analyses show that the genus Omphalotus is split into two major clades, the first consisting of O. illudens and O. mexicanus and the second comprising O. olearius, O. olivascens, O. japonicus, O. nidiformis and O. subilludens. Moreover, the often discussed synonymy of O. illudens and O. olearius is rejected. Omphalotus japonicus, a species formerly placed in the genus Lampteromyces Sing. for morphological reasons, clustered as the sister group of O. olearius.
从 ITS1-5.8S-ITS2 rDNA 区的 DNA 序列推断出鹅膏属的进化历史。我们分析了来自不同地理区域的 32 个集落：O. olearius（欧洲）、O. illudens（欧洲、北美）、O. subilludens（北美）、O. olivascens var. olivascens（北美）和 var. indigo（墨西哥）、O. mexicanus（中美洲）、O. nidiformis（澳大利亚）和 O. japonicus（日本）。在分析中，我们将 Nothopanus eugrammus 宣布为外群。我们的分析表明，鹅膏属分为两个主要分支，第一个分支由 O. illudens 和 O. mexicanus 组成，第二个分支由 O. olearius、O. olivascens、O. japonicus、O. nidiformis 和 O. subilludens 组成。此外，经常讨论的 O. illudens 和 O. olearius 的同义性被拒绝。由于形态学原因被归入 Lampteromyces Sing. 属的日本鹅膏 O. japonicus 与 O. olearius 聚为姐妹群。
