Thus, understanding the microbial diversity patterns is a fundamental topic in modern Microbial Ecology and a key step for advancing our knowledge on bacterial-mediated processes across continental water ecosystems.ĭespite the extensive application of amplicon sequencing by high-throughput technologies (HTS), there are still important gaps in the study of aquatic microbial diversity 6, 7, 8. Due to their high abundances and activities and to their collective metabolic and phylogenetic diversity, prokaryotes support aquatic food webs and regulate the magnitude and recycling rates of major elements 5. Microorganisms are the main drivers of biogeochemical cycles in freshwater ecosystems 1, 2, 3, 4. This compilation was carried out in the scope of the µSudAqua collaborative network and represents one of the most complete databases of continental water microbial communities from South America. This comprised ~60% of the total georeferenced samples of the µSudAqua. For its integration and validation we constructed a curated database ( µSudAqua) using samples sequenced by Illumina MiSeq platform with commonly used prokaryote universal primers. The database contains over 866 georeferenced samples from 9 different ecoregions with contextual environmental information. To fill this gap, we compiled 16S rRNA amplicon sequencing data of microbial communities across South America continental water ecosystems, presenting the first database µSudAqua. South America harbours approximately one third of the world’s total freshwater resources, and is one of these understudied regions.
Regarding continental water, most studies are carried out in the northern hemisphere, leaving a gap on microorganism’s diversity patterns on a global scale. The biogeography of bacterial communities is a key topic in Microbial Ecology. Scientific Data volume 9, Article number: 565 ( 2022)
A georeferenced rRNA amplicon database of aquatic microbiomes from South America
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