Phylogenetic re-evaluation of the Grosmannia penicillata complex (Ascomycota, Ophiostomatales), with the description of five new species from China and USA

Publication date: Available online 25 December 2019Source: Fungal BiologyAuthor(s): Mingliang Yin, Michael J. Wingfield, Xudong Zhou, Z. Wilhelm de BeerAbstractThe Grosmannia penicillata complex (Ophiostomatales, Ascomycota) is one of the major species complexes in Leptographium sensu lato. Most of these are wood staining fungi associated with conifer-infesting bark beetles, and the complex encompasses the type species of the genus Grosmannia. Yet the phylogenetic relationships of species within the complex is unresolved. The aim of this study was to re-evaluate the circumscriptions of all known species in the G. penicillata complex, as well as isolates resembling G. penicillata obtained from a recent survey in China. Phylogenetic analyses of four gene regions: Internal transcribed spacer 2 and large subunit (ITS2-LSU), beta-tubulin (TUB), calmodulin (CAL), and translation elongation factor 1 alpha (TEF-1α) resolved the relationships of 15 species, including four new species (G. xianmiense sp nov., G. purpurea sp. nov., G. crassifolia sp. nov. and G. maixiuense sp. nov.), from China. Some isolates from pine in the USA that had previously been identified as G. abietina, represented a distinct taxon that is described here as G. xeno-abietina sp. nov. Furthermore, a lectotype was designated for G. abiocarpa. An interesting outcome of the study was that conifer isolates resided in three well-supported lineages that respectively included European and Asian isolates, Norwegian iso...
Source: Fungal Biology - Category: Biology Source Type: research