Sutorius: a new genus for Boletus eximius
Sutorius: a new genus for Boletus eximius
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DOI：
10.3852/11-376
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发表时间：
2012-07-01
期刊：
影响因子：
2.8
通讯作者：
Binder, Manfred
中科院分区：
文献类型：
--
作者：
Halling, Roy E.;Nuhn, Mitchell;Binder, Manfred
Sutorius是牛肝菌科的一个新属，它与C.C.来自北美洲东部的霜冻。学名为Boletus eximius，由C.H. Peck，一直被用于深紫色到巧克力棕色的牛肝菌，有细鳞的柄和红棕色的孢子存款。这种标志性的分类群在五大洲都有记载。尽管从形态学上可以直接鉴定种，但对菌柄宏观形态和孢子颜色的解释导致了模糊的属位。编码大亚基rRNA和翻译延伸因子la的基因的系统发育分析证实Sutorius是牛肝菌科中一个独特的属系。两个种是公认的基础上多加入：S。eximius，以来自北美、哥斯达黎加、圭亚那、印度尼西亚和日本的标本为代表（仅圭亚那和日本标本缺乏分子数据）;澳大利亚昆士兰州材料为代表。来自赞比亚和泰国的额外收集代表独立的谱系，但采样不足以描述这些实体的新物种。
Sutorius is described as a new genus of Boletaceae to accommodate Boletus robustus originally named illegitimately by C.C. Frost from eastern North America. The legitimate name, Boletus eximius, provided by C.H. Peck, has been used since for a dark purple to chocolate brown bolete with finely scaly stipe and reddish brown spore deposit. This iconic taxon has been documented on five continents. Despite the straightforward species identification from morphology, the interpretation of stipe macro-morphology and spore color has led to equivocal generic placement. Phylogenetic analyses of genes encoding large subunit rRNA and translation elongation factor la confirm Sutorius as a unique generic lineage in the Boletaceae. Two species are recognized based on multiple accessions: S. eximius, represented by collections from North America, Costa Rica, Guyana, Indonesia and japan (molecular data are lacking for only the Guyanan and Japanese material); and S. australiensis, represented by material from Queensland, Australia. Additional collections from Zambia and Thailand represent independent lineages, but sampling is insufficient to describe new species for these entities.