Genetic (non)-homogeneity of the bracket fungi of the genus Ganoderma (Basidiomycota) in Central Europe

IF 10 1区生物学 Q1 MYCOLOGY

Mycosphere Pub Date : 2020-01-01 DOI:10.5943/mycosphere/11/1/3

T. Beck

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引用次数: 10

Abstract

During systematic surveys of urban, rural and forest areas in Slovakia and Moravia (Czech Republic) and occasional botanical excursions in Northern Hungary, seventy-five collections of Ganoderma spp. were gathered during 2015 – 2018. Taxa identification was accomplished through observation of morphological characteristics of their mature, sporulating and undeformed basidiocarps. The genetic diversity of the collections was investigated by using internal transcribed spacer (ITS1/4) of ribosomal DNA sequences comparisons. Both analyses showed that the 75 collections clustered into six clades, namely, G. applanatum, G. adspersum, G. resinaceum, G. pfeifferi, G. lucidum and G. carnosum in accordance with the morphospecies concept. The sequence comparison demonstrated genetic homogeneity of all G. resinaceum clade. Multiple sequence alignment indicated the presence of two G. resinaceum sequence types with significant statistic support and, probably, the existence of two cryptic taxa. The twenty-eight collections clustered with the G. applanatum group and the twenty other collections were grouped with morphologically very similar G. adspersum group. However, ITS sequences show no close similarity between these two species.

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中欧灵芝属(担子菌科)支架真菌的遗传(非)同质性

2015 - 2018年期间，在斯洛伐克和摩拉维亚(捷克共和国)的城市、农村和森林地区进行了系统调查，并在匈牙利北部进行了偶尔的植物考察，共收集了75个灵芝品种。通过观察成熟、产孢和未变形的担子果的形态特征来确定其分类群。利用核糖体DNA序列的内转录间隔区(ITS1/4)进行遗传多样性比较。结果表明，根据形态种的概念，75个聚类可归为6个支系，分别为G. applanatum、G. adspersum、G. resinaceum、G. pfeifferi、G. lucidum和G. carnosum。序列比较结果表明，所有分枝的遗传同源性较好。多重序列比对表明存在两种具有显著统计支持的G. resinaceum序列类型，可能存在两个隐型分类群。其中28个种质与青桃组聚在一起，其余20个种质与形态非常相似的灰桃组聚在一起。然而，ITS序列在这两个物种之间没有显示出密切的相似性。

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来源期刊

Mycosphere MYCOLOGY-

CiteScore

30.00

自引率

8.20%

发文量

审稿时长

4 weeks

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