Universität zu Köln

Sachs, Maria ORCID: 0000-0002-7710-5295, Nitsche, Frank ORCID: 0000-0003-3950-8285 and Arndt, Hartmut ORCID: 0000-0003-2811-3595 (2025). Cryptic Cryptophytes—Revision of the Genus Goniomonas. Journal of Eukaryotic Microbiology, 72 (5). pp. 1-23. Wiley. ISSN 1066-5234

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Abstract

[Artikel-Nr.: e70038] Cryptomonad protists are ubiquitously distributed over marine and freshwater habitats. As an exception to the colored cryptomonads, the heterotrophic cryptomonads of the genus Goniomonas have an ancestral phylogenetic position. They lack any kind of chloroplast and most likely represent a basal group to those cryptomonad groups having obtained their chloroplast by secondary endosymbiosis. Earlier studies have shown a deep divergence between freshwater and marine clades of goniomonads that comprise large genetic distances between members within the group and also between the two groups of marine and freshwater taxa. Still, marine and freshwater species carry the same genus name, and to date, only a few species have been described. We therefore restructured goniomonad systematics based not only on a separation of marine and freshwater taxa, but also, taking the large genetic distances into account, on several new genera that are described. Based on morphological as well as phylogenetic data (18S rDNA sequences), this leads to the formation of the freshwater genera Limnogoniomonas n. g., Goniomonas , and Aquagoniomonas n. g. and the marine genera Neptunogoniomonas n. g., Baltigoniomonas n. g., Marigoniomonas n. g., Thalassogoniomonas n. g., Poseidogoniomonas n. g., and Cosmogoniomonas n. g. To give the restructuring process a stable basis, we additionally propose a neotype for Goniomonas truncata .

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Sachs, Maria UNSPECIFIED https://orcid.org/0000-0002-7710-5295 UNSPECIFIED Nitsche, Frank UNSPECIFIED https://orcid.org/0000-0003-3950-8285 UNSPECIFIED Arndt, Hartmut UNSPECIFIED https://orcid.org/0000-0003-2811-3595 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-805712
Identification Number:	10.1111/jeu.70038
Journal or Publication Title:	Journal of Eukaryotic Microbiology
Volume:	72
Number:	5
Page Range:	pp. 1-23
Number of Pages:	23
Date:	12 September 2025
Publisher:	Wiley
ISSN:	1066-5234
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Zoologisches Institut
Subjects:	Life sciences
Uncontrolled Keywords:	Keywords Language Cryptista | Cryptophyta | heterotrophic flagellates | phylogeny | salinity | synapomorphy English
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/80571