Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510000, Guangdong Province, China; Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, Gauteng Province, South Africa.
Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria 0002, Gauteng Province, South Africa.
Fungal Biol. 2020 Feb;124(2):110-124. doi: 10.1016/j.funbio.2019.12.003. Epub 2019 Dec 25.
The 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 (Grosmannia xianmiense sp nov., Grosmannia purpurea sp. nov., Grosmannia crassifolia sp. nov. and Grosmannia maixiuense sp. nov.), from China. Some isolates from pine in the USA that had previously been identified as Grosmannia abietina, represented a distinct taxon that is described here as Grosmannia xeno-abietina sp. nov.
Penicillata 复合 Grosmannia（Ophiostomatales，子囊菌门）是广义 Leptographium 中的主要种复合体之一。这些真菌大多是与侵害针叶树的树皮甲虫相关的木材染色真菌，且复合体内包含 Grosmannia 属的模式种。然而，该复合体内物种的系统发育关系尚未解决。本研究旨在重新评估 G. penicillata 复合体内所有已知种的界限，以及从中国最近的调查中获得的类似 G. penicillata 的分离株。对四个基因区域的系统发育分析：内部转录间隔区 2 和大亚基（ITS2-LSU）、β-微管蛋白（TUB）、钙调蛋白（CAL）和翻译延伸因子 1α（TEF-1α），解决了包括四个新种（Grosmannia xianmiense sp nov.、Grosmannia purpurea sp. nov.、Grosmannia crassifolia sp. nov. 和 Grosmannia maixiuense sp. nov.）在内的 15 种中国种的关系。来自美国松树的一些以前被鉴定为 Grosmannia abietina 的分离株代表了一个独特的分类群，在这里被描述为 Grosmannia xeno-abietina sp. nov.
