High diversity and isolated distribution of aquatic heterotrophic protists in salars of the Atacama Desert at different salinities

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Title:Main Title: High diversity and isolated distribution of aquatic heterotrophic protists in salars of the Atacama Desert at different salinities
Description:Abstract: The species richness of eukaryotes in the hypersaline environment is generally thought to be low. However, recent studies showed a high degree of phylogenetic novelty at these extreme conditions with variable chemical parameters. These findings call for a more thorough look into the species richness of hypersaline environments. In this study, various hypersaline lakes (salars, 1–348 PSU) as well as further aquatic ecosystems of northern Chile were investigated regarding diversity of hetero- trophic protists by metabarcoding studies of surface water samples. Investigations of genotypes of 18S rRNA genes showed a unique community composition in nearly each salar and even among different microhabitats within one salar. The genotype distribution showed no clear connection to the composition of main ions at the sampling sites, but protist communities from similar salinity ranges (either hypersaline, hyposaline or mesosaline) clustered together regarding their OTU composition. Sal- ars appeared to be fairly isolated systems with only little exchange of protist communities where evolutionary lineages could separately evolve.
Responsible Party
Creators:Alexandra Rybarski (Author), Michael Staubwasser (Author), Claudia Voigt (Author), Frank Nitsche (Author), Hartmut Arndt (Principal Investigator)
Publication Year:2023
CRC1211 Topic:Biology
Related Subproject:B2
Subjects:Keywords: Biodiversity, Molecular Biology
Geogr. Information Topic:Biota
File Details
Data Type:Data Paper - Species description
File Size:3.5 MB
Date:Accepted: 11.04.2023
Mime Type:application/pdf
Data Format:PDF
Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:[CRC1211DB] Data policy agreement
Specific Information - Publication
Publication Status:Accepted
Review Status:Peer reviewed
Publication Type:Article
Article Type:Journal
Source:European Journal of Protistology
Number of Pages:17 (1 - 17)
Metadata Details
Metadata Creator:Frank Nitsche
Metadata Created:08.09.2023
Metadata Last Updated:08.09.2023
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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