Department of Bioscience and Food Production Science, Interdisciplinary Graduate School of Science and Technology, Shinshu University, 8304, Minami-minowa, Nagano 399-4598, Japan.
Sugadaira Research Station, Montane Science Center, University of Tsukuba, 1278-294, Sugadaira, Nagano 386-2204, Japan.
Mycologia. 2020 Mar-Apr;112(2):309-328. doi: 10.1080/00275514.2019.1689092. Epub 2020 Jan 22.
Species of Endogonaceae (Endogonales, Mucoromycotina) are characterized by the formation of relatively large sporocarps and zygosporangia. Numerous species in this family remain undescribed or have unclear phylogenetic positions. In Asia specifically, the species diversity of this family is almost completely unknown. However, many mycobionts of bryophytes belonging to several novel clades in Endogonaceae have recently been identified phylogenetically. Therefore, establishing a robust taxonomic system for this family is essential. We obtained numerous sporocarps of undescribed Endogonaceae-like species from the Japanese islands. Morphological observation and multilocus phylogenetic analysis of nuc 18S rDNA (18S), nuc 28S rDNA (28S), and portions of two nuclear protein-coding regions-translation elongation factor 1-alpha () and RNA polymerase II large subunit ()-from these species resulted in the description of one new species each of and and two new species of , gen. nov. Because is characterized by purplish sporocarps and red-wine-colored chlamydospores up to 700 μm in diameter, we emended the definition of Endogonaceae.
内囊霉科（内囊霉目，毛霉亚门）的特征是形成相对较大的孢子果和接合孢子囊。该科有许多未被描述的物种或其系统发育位置尚不清楚。特别是在亚洲，该科的物种多样性几乎完全未知。然而，最近已经从几个内囊霉科的新分支的苔藓植物中鉴定出许多此类的外生菌根真菌的菌物。因此，建立该科的稳健分类系统至关重要。我们从日本群岛获得了许多未描述的内囊霉科样物种的孢子果。对这些物种的核 18S rDNA（18S）、核 28S rDNA（28S）以及两个核蛋白编码区的部分序列（翻译延伸因子 1-α（）和 RNA 聚合酶 II 大亚基（））的形态观察和多基因座系统发育分析导致了每个新种的描述，其中包括一个新种的 和 以及两个新种的 ，属新种。因为 具有紫色的孢子果和直径达 700μm 的红酒色厚垣孢子，所以我们对内囊霉科的定义进行了修正。
