Vermistella arctica n. sp. Nominates the Genus Vermistella as a Candidate for Taxon with Bipolar Distribution

A new amoebozoan species, Vermistella arctica n. sp., is described from marine habitats in the central part of Svalbard archipelago. This is the first report on Arctic amoebae belonging to the genus Vermistella Moran and Anderson, 2007, the type species of which was described from the opposite pole...

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Bibliographic Details
Published in:The Journal of eukaryotic microbiology 2016-03, Vol.63 (2), p.210-219
Main Authors: Tyml, Tomáš, Kostka, Martin, Ditrich, Oleg, Dyková, Iva
Format: Article
Language:English
Subjects:
actin
Actins - genetics
Amoeba - genetics
Amoebozoa - classification
Amoebozoa - genetics
Amoebozoa - isolation & purification
Amoebozoa - ultrastructure
Arctic Regions
Arctica
basins
biogeography
bipolar distribution
Cold Climate
DNA, Protozoan - genetics
DNA, Ribosomal - genetics
free-living amoebae
habitats
Lobosea
Microscopy, Electron, Transmission
Phylogeny
Phylogeography
polar regions
ribosomal DNA
RNA, Ribosomal, 16S - genetics
Seawater - parasitology
SSU
Stygamoeba regulata
Svalbard
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Summary:A new amoebozoan species, Vermistella arctica n. sp., is described from marine habitats in the central part of Svalbard archipelago. This is the first report on Arctic amoebae belonging to the genus Vermistella Moran and Anderson, 2007, the type species of which was described from the opposite pole of the planet. Psychrophily proved in the new strains qualifies the genus Vermistella as a bipolar taxon. Molecular phylogenetic analyses based on 18S rDNA and actin sequences did not show any affinity of the genus Vermistella to Stygamoeba regulata ATCC® 50892™ strain. A close phylogenetic relationship was found between Vermistella spp. and a sequence originating from an environmental sample from Cariaco basin, the largest marine permanently anoxic system in the world. Possible mechanisms of bipolar distribution are discussed.
ISSN:1066-5234
1550-7408
DOI:10.1111/jeu.12270