Many unnamed fungi have been revealed from DNA sequences but cannot be formally named due to a lack of physical materials required for the description of a taxon by the International Code of Nomenclature for algae, fungi, and plants. While the mycological community generally discusses the necessity to amend the code to permit DNA sequence data as the nomenclatural type of these fungal ‘dark taxa’ (FDT), the standard of DNA sequences is mainly in debate. Here, I suggest to set an approximate fifteen years transition period. During that time, it is recommended to sequence the whole genomes of all known species and newly published species with available physical materials; meanwhile, the FDT can be provisionally named with priority using whole genome data as the type. After the transition period, these provisionally named FDT will become valid, provided no known species from physical materials with a priority can be proved to be conspecific. Moreover, in this new era of fungal taxonomy when the whole genome data will be commonly used as the crucial evidence to delimit fungal species, new taxa should be named along with the deposition of whole genome sequences in public databases, and the whole genome data may be the type of the FDT.

中文翻译：

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命名真菌“暗类群”的策略可能涉及过渡期和基因组学

许多未命名的真菌已从 DNA 序列中被发现，但由于缺乏《国际藻类、真菌和植物命名法》描述分类单元所需的物理材料，无法正式命名。虽然真菌学界普遍讨论是否有必要修改代码以允许 DNA 序列数据作为这些真菌“暗类群”(FDT) 的命名类型，但 DNA 序列的标准主要存在争议。在这里，我建议设定一个大约十五年的过渡期。在此期间，建议利用现有物理材料对所有已知物种和新发表物种的全基因组进行测序；同时，可以优先使用全基因组数据作为类型对FDT进行临时命名。过渡期结束后，如果优先物理材料中的已知物种不能被证明是同种的，则这些临时命名的 FDT 将生效。此外，在真菌分类学的新时代，当全基因组数据将被普遍用作界定真菌物种的关键证据时，新的分类单元应随着全基因组序列在公共数据库中的沉积而被命名，全基因组数据可能会被命名。是FDT的类型。