Resolution of eleven reported and five novel Podaxis species based on ITS phylogeny, phylogenomics, morphology, ecology, and geographic distribution

IF 9.5 1区 生物学 Q1 MYCOLOGY Persoonia Pub Date : 2023-12-31 DOI:10.3767/persoonia.2023.51.07
G.S. Li, C.A. Leal-Dutra, A. Cuesta-Maté, B.H. Conlon, N. Peereboom, C. Beemelmanns, D.K. Aanen, S. Rosendahl, Z.W. Debeer, M. Poulsen
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Abstract

Thegenus Podaxis was first described from India by Linnaeus in 1771, but several revisions of the genus have left the taxonomy unclear. Forty-four Podaxis species names and nine intraspecific varieties are currently accepted, but most fungarium specimens are labelled Podaxis pistillaris. Recent molecular analyses based on barcoding genes suggest that the genus comprises severals pecies, but their status is largely unresolved. Here we obtained basidiospores and photographs from166 fungarium specimens from around the world and generated a phylogeny basedonr DNA internal transcribed spacer ITS1, 5.8S and ITS2(ITS), and aphylogenomic analysis of 3839 BUSCO genes from low-coverage genomes for a subset of the specimens. Combining phylogenetics, phylogenomics, morphology, ecology, and geographical distribution, spanning 250 years of collections, we propose that the genus includes at least 16 unambiguous species. Based on10 type specimens (holotype, paratype, andsyntype), four recorded species were confirmed, P. carcinomalis, P. deflersii, P. emerici, and P. farlowii. Comparing phylogenetic analysis with described species, including morphology, ecology, and distribution, we resurrected P. termitophilus and designated neotypes, epitypes, orlectotypes for five previously described species, P. aegyptiacus, P. africana, P. beringamensis, P. calyptratus and P. perraldieri. Lastly, based on phylogenies and morphology of type material, we synonymized three reported species, P. algericus, P. arabicus, and P. rugospora with P. pistillaris, and described five newspecies that we named P. desolatus, P. inyoensis, P. mareebaensis, P. namaquensis, and P. namibensis.
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基于 ITS 系统发育、系统发生组学、形态学、生态学和地理分布,解析 11 个已报道的 Podaxis 物种和 5 个新的 Podaxis 物种
林奈于 1771 年首次在印度描述了 Podaxis 属,但对该属的多次修订导致分类不清。目前有 44 个 Podaxis 种名和 9 个种内变种被接受,但大多数菌种标本都标为 Podaxis pistillaris。最近基于条形码基因的分子分析表明,该属由多个变种组成,但它们的地位在很大程度上尚未确定。在此,我们从世界各地的 166 个真菌标本中获得了基生孢子和照片,并根据rDNA 内部转录间隔 ITS1、5.8S 和 ITS2(ITS)生成了一个系统发育关系,还对其中一部分标本的低覆盖基因组中的 3839 个 BUSCO 基因进行了系统发生组分析。结合系统发生学、系统发生组学、形态学、生态学和地理分布,以及 250 年来的采集情况,我们认为该属至少包括 16 个明确的种。根据 10 个模式标本(主模式、副模式和综合模式),我们确认了 4 个记录在案的物种,分别是 P. carcinomalis、P. deflersii、P. emerici 和 P. farlowii。通过系统发育分析与描述的物种(包括形态学、生态学和分布)进行比较,我们复活了嗜白蚁属(P. termitophilus),并为五个先前描述的物种(P. aegyptiacus、P. africana、P. beringamensis、P. calyptratus 和 P. perraldieri)指定了新种、表型或选型。最后,根据系统发育和模式标本的形态,我们将已报道的三个种(P. algericus、P. arabicus 和 P. rugospora)与 P. pistillaris 同名,并描述了五个新种,分别命名为 P. desolatus、P. inyoensis、P. mareebaensis、P. namaquensis 和 P. namibensis。
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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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