Unknown

Dataset Information

0

A globally distributed Syndiniales parasite dominates the Southern Ocean micro-eukaryote community near the sea-ice edge.


ABSTRACT: Syndiniales (Dinophyceae, Alveolata) are a diverse parasitic group common in all marine environments, but their ecological role remains poorly understood. Here we show an unprecedented dominance of a single Syndiniales group I operational taxonomic unit (OTU) across 3000?km of Southern Ocean transects near the sea-ice edge. This super-abundant OTU consistently represented >20%, and in some locations >50%, of eukaryote 18S rDNA sequences. Identical 18S V4 sequences have been isolated from seven Northern Hemisphere locations, and the OTU's putative V9 rDNA sequence was detected at every station of the global Tara Oceans voyage. Although Syndiniales taxa display some host specificity, our identification of candidate Southern Ocean hosts suggests this OTU associates with distinct phyla in different parts of the world. Our results indicate Syndiniales are key players in surface waters near the vast and dynamic sea-ice edge in the world's most biologically productive ocean.

SUBMITTER: Clarke LJ 

PROVIDER: S-EPMC6461979 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

altmetric image

Publications

A globally distributed Syndiniales parasite dominates the Southern Ocean micro-eukaryote community near the sea-ice edge.

Clarke Laurence J LJ   Bestley Sophie S   Bissett Andrew A   Deagle Bruce E BE  

The ISME journal 20181026 3


Syndiniales (Dinophyceae, Alveolata) are a diverse parasitic group common in all marine environments, but their ecological role remains poorly understood. Here we show an unprecedented dominance of a single Syndiniales group I operational taxonomic unit (OTU) across 3000 km of Southern Ocean transects near the sea-ice edge. This super-abundant OTU consistently represented >20%, and in some locations >50%, of eukaryote 18S rDNA sequences. Identical 18S V4 sequences have been isolated from seven N  ...[more]

Similar Datasets

| S-EPMC6447586 | biostudies-literature
| S-EPMC5876363 | biostudies-literature
| S-EPMC6096696 | biostudies-literature
| S-EPMC7524720 | biostudies-literature
| S-EPMC9723556 | biostudies-literature
| S-EPMC5864207 | biostudies-literature
2024-10-26 | PXD057232 |
| S-EPMC6620096 | biostudies-literature
| S-EPMC10900894 | biostudies-literature
| S-EPMC11316326 | biostudies-literature