Universität zu Köln

Strelow, Daniel ORCID: 0000-0003-1530-2717, De Haan, Myriam, Bonkowski, Michael and Fiore-Donno, Anna Maria ORCID: 0000-0001-6265-1907 (2020). New insights into the phylogeny of the dark-spored Myxomycetes (Amoebozoa: Conosa: Myxogastria: Fuscisporidia) and polyphyly of the genus Stemonitis. Syst. Biodivers., 18 (3). S. 228 - 237. ABINGDON: TAYLOR & FRANCIS LTD. ISSN 1478-0933

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Abstract

About a thousand described species of Myxomycetes, colloquially named slime moulds, are present in most terrestrial habitats. Molecular environmental sampling has revealed that a significant proportion of sequences could not be assigned to known species, with some specific groups showing a high hidden diversity. One such group included Stemonitis and allied genera, with only a few closely related reference sequences from known species and many distantly related sequences from environmental sampling. To improve the phylogeny and help define genera in this lineage, we provided nine new small-subunit ribosomal RNA gene sequences of Stemonitis and allied genera, along with microscopy observations. We showed that the genus Stemonitis is polyphyletic, clearly separated into two groups, with the main distinguishing feature being spore ornamentation. The first group included the type species Stemonitis fusca, and was characterized by reticulated spores, while the second contained species with warted spores (e.g. S. flavogenita and S. axifera) and many undetermined environmental sequences. In addition, we show that the related genera Stemonitopsis, Stemonaria and Symphytocarpus were polyphyletic and that their circumscription was based on inconsistent characteristics. Instead, representatives of these genera clustered into the two clades according to their spore ornamentation. Our study provides a first insight into the genetic diversity of Stemonitis and allied genera, and proposes spore ornamentation as an evolutionary informative feature to distinguish genera in this group.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Strelow, Daniel UNSPECIFIED orcid.org/0000-0003-1530-2717 UNSPECIFIED De Haan, Myriam UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonkowski, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Fiore-Donno, Anna Maria UNSPECIFIED orcid.org/0000-0001-6265-1907 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-337680
DOI:	10.1080/14772000.2020.1733128
Journal or Publication Title:	Syst. Biodivers.
Volume:	18
Number:	3
Page Range:	S. 228 - 237
Date:	2020
Publisher:	TAYLOR & FRANCIS LTD
Place of Publication:	ABINGDON
ISSN:	1478-0933
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DIVERSITY; EVOLUTION; RNA Multiple languages Biodiversity Conservation; Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/33768