Universität zu Köln

Schiwitza, Sabine ORCID: 0000-0002-9185-5236, Spruck, Christiane and Nitsche, Frank ORCID: 0000-0003-3950-8285 (2023). Biogeographical distribution of Hartaetosiga strains (Choanoflagellatea, Craspedida, Salpingoecidae) including morphological and transcriptomic data from a transect across the Atlantic Ocean. J. Eukaryot. Microbiol., 70 (1). HOBOKEN: WILEY. ISSN 1550-7408

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Abstract

The genus Hartaetosiga Carr, Richter and Nitsche, 2017 comprised up to now only three species, H. gracilis (Kent) Carr, Richter, Nitsche, 2017, H. balthica (Wylezich and Karpov) Carr, Richter and Nitsche, 2017 and H. minima (Wylezich and Karpov) Carr, Richter and Nitsche, 2017. Based on distinct molecular data these species were relocated from the strictly freshwater genus Codosiga (Ehrenberg) Butschli, 1878 to a new genus comprising brackish and marine species. During the cruise MSM82/2 across the Atlantic Ocean in 2019, surface water samples were taken from 15 stations along a transect ranging from 35 degrees S to 23 degrees N. We were able to isolate and cultivate 14 strains of the genus Hartaetosiga. Morphometric data showed no distinct morphological traits allowing for a species delineation, indicating a cryptic species complex within the genus. Based on cultivation, morphological data, and molecular analyses, we recorded H. gracilis for the first time from off-shelf waters of the Atlantic Ocean and could describe a new species, H. australis n. sp. This new species was recorded from sampling stations in the Southern Hemisphere only, which may indicate a potential biogeographic restriction likely caused by the Equatorial Counter Current (ECC), dividing the northern and southern surface waters.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schiwitza, Sabine UNSPECIFIED orcid.org/0000-0002-9185-5236 UNSPECIFIED Spruck, Christiane UNSPECIFIED UNSPECIFIED UNSPECIFIED Nitsche, Frank UNSPECIFIED orcid.org/0000-0003-3950-8285 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-657162
DOI:	10.1111/jeu.12933
Journal or Publication Title:	J. Eukaryot. Microbiol.
Volume:	70
Number:	1
Date:	2023
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1550-7408
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WATER-COLUMN; WEDDELL SEA; DIVERSITY; ZONE; ACANTHOECIDAE; ASSEMBLAGES; PHYLOGENY; COMMUNITY; ABUNDANCE; PROTISTS Multiple languages Microbiology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/65716