Revision of Xylonaceae (Xylonales, Xylonomycetes) to include Sarea and Tromera.

IF 1.5 4区 生物学 Q4 MYCOLOGY
Akira Hashimoto, Hiroshi Masumoto, Rikiya Endoh, Yousuke Degawa, Moriya Ohkuma
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引用次数: 3

Abstract

The resinicolous fungi Sarea difformis and S. resinae (Sareomycetes) were taxonomically revised on the basis of morphological observations and phylogenetic analyses of the nucleotide sequences of the nSSU-LSU-rpb1-rpb2-mtSSU genes. The results of phylogenetic analyses show that S. difformis and S. resinae are grouped with members of Xylonomycetes. According to the results of phylogenetic analyses and their sexual and asexual morphs resemblance, Sareomycetes is synonymized with Xylonomycetes. Although Tromera has been considered a synonym of Sarea based on the superficial resemblance of the sexual morph, we show that they are distinct genera and Tromera should be resurrected to accommodate T. resinae (= S. resinae). Xylonomycetes was morphologically re-circumscribed to comprise a single family (Xylonaceae) with four genera (Sarea, Trinosporium, Tromera, and Xylona) sharing an endophytic or plant saprobic stage in their lifecycle, ascostroma-type ascomata with paraphysoid, Lecanora-type bitunicate asci, and pycnidial asexual morphs. Phylogenetic analyses based on ITS sequences and environmental DNA (eDNA) implied a worldwide distribution of the species. Although Symbiotaphrinales has been treated as a member of Xylonomycetes in previous studies, it was shown to be phylogenetically, morphologically, and ecologically distinct. We, therefore, treated Symbiotaphrinales as Pezizomycotina incertae sedis.

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木犀草科(木犀草目,木犀草纲)的修订,以包括木犀草和木犀草.
通过形态学观察和对nSSU-LSU-rpb1-rpb2-mtSSU基因序列的系统发育分析,对树脂真菌Sarea diformis和S. resinae进行了分类修正。系统发育分析结果表明,S. diformis和S. resinae属于木酵母菌属。根据系统发育分析的结果及其有性和无性形态的相似性,Sareomycetes与Xylonomycetes同义。尽管Tromera被认为是Sarea的同义词,基于表面上的性形态相似,我们表明它们是不同的属,Tromera应该复活以适应T. resinae (= S. resinae)。在形态学上,木酵母菌被重新界定为一个单一的家族(木酵母菌科),包括四个属(Sarea, Trinosporium, Tromera和Xylona),在其生命周期中共享内生或植物腐生阶段,ascostroma型ascomata具有副葡萄球菌,lecanora型双舌ascomia和pycnidial无性形态。基于ITS序列和环境DNA (eDNA)的系统发育分析表明该物种在世界范围内分布。虽然在以前的研究中,共生菌被认为是木酵母菌的一个成员,但它在系统发育、形态和生态学上都是不同的。因此,我们将共生菌属处理为交叉菌属(Pezizomycotina intercertae sedis)。
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来源期刊
Mycoscience
Mycoscience MYCOLOGY-
CiteScore
3.00
自引率
7.10%
发文量
32
审稿时长
3 months
期刊介绍: Mycoscience is the official English-language journal of the Mycological Society of Japan and is issued bimonthly. Mycoscience publishes original research articles and reviews on various topics related to fungi including yeasts and other organisms that have traditionally been studied by mycologists. The research areas covered by Mycoscience extend from such purely scientific fields as systematics, evolution, phylogeny, morphology, ecology, physiology, biochemistry, genetics, and molecular biology, to agricultural, medical, and industrial applications. New and improved applications of well-established mycological techniques and methods are also covered.
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