通过分子和形态学研究,对混合无核菌群(无核菌科,琼脂纲)的认识进展。

IF 9.5 1区 生物学 Q1 MYCOLOGY Persoonia Pub Date : 2018-12-01 Epub Date: 2018-09-10 DOI:10.3767/persoonia.2018.41.11
F Esteve-Raventós, D Bandini, B Oertel, V González, G Moreno, I Olariaga
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引用次数: 7

摘要

Inocybe mixetilis是一种复杂的物种,其特征是结瘤的angulose孢子,没有cortina和或多或少的球状边缘柄,干燥时不会变暗。为了阐明I.mixtilis复合体内的物种界限,进行了ITS-RPB2系统发育,并利用形态学和生态学特征进行了解释。在我们的分析中获得了六个支持的分支,分别对应于I.mixtilis、I.subdivilis和四个科学新种:I.ceskae、I.johannis stanglii、I.nothomixtilis和I.occluta。该复合体中的物种可以通过独特的形态特征组合进行形态识别,如孢子形状、囊泡长度和形状、绒毛和菌盖颜色和粘性的存在和发育。然而,这些特征是重叠的,特别是在I.mixtilis、I.ceskae和I.occluta之间,因此通过ITS测序可以更可靠地鉴定中间集合。北美洲和欧洲都有两个物种,C.ceskae和I.occluta,而其他物种迄今为止只在欧洲或欧洲和亚洲(I.mixtilis)为人所知。除了石首乌以外,所有物种似乎都能与针叶树和被子植物建立外生菌根联系。提供了所有已知物种的描述、彩色插图和一把钥匙。
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Advances in the knowledge of the Inocybe mixtilis group (Inocybaceae, Agaricomycetes), through molecular and morphological studies.

Inocybe mixtilis constitutes a complex of species characterized by nodulose-angulose spores, absence of cortina and a more or less bulbous marginate stipe that is not darkening when desiccated. In order to elucidate species limits within the I. mixtilis complex, an ITS-RPB2 phylogeny was performed and interpreted using morphological and ecological characters. Six supported clades were obtained in our analyses that correspond to I. mixtilis, I. subtrivialis, and four new species to science: I. ceskae, I. johannis-stanglii, I. nothomixtilis and I. occulta. Species within this complex can be morphologically recognized through a unique combination of morphological characters, such as the spore shape, cystidial length and shape, presence and development of the velipellis and pileus colour and viscidity. Nevertheless, those characters overlap, especially among I. mixtilis, I. ceskae and I. occulta, and intermediate collections are therefore more reliably identified through ITS-sequencing. Two species, I. ceskae and I. occulta are present in both North America and Europe, while the rest are so far only known in Europe, or Europe and Asia (I. mixtilis). All species, except I. johannis-stanglii, seem to be able to establish ectomycorrhizal association both with conifers and angiosperms. Descriptions, colour illustrations and a key to all known species in the I. mixtilis group are provided.

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来源期刊
Persoonia
Persoonia MYCOLOGY-
CiteScore
17.70
自引率
5.50%
发文量
10
审稿时长
3 months
期刊介绍: Persoonia aspires to publish papers focusing on the molecular systematics and evolution of fungi. Additionally, it seeks to advance fungal taxonomy by employing a polythetic approach to elucidate the genuine phylogeny and relationships within the kingdom Fungi. The journal is dedicated to disseminating high-quality papers that unravel both known and novel fungal taxa at the DNA level. Moreover, it endeavors to provide fresh insights into evolutionary processes and relationships. The scope of papers considered encompasses research articles, along with topical and book reviews.
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