Elucidating the picocyanobacteria salinity divide through ecogenomics of new freshwater isolates.

ABSTRACT:

Background

Cyanobacteria are the major prokaryotic primary producers occupying a range of aquatic habitats worldwide that differ in levels of salinity, making them a group of interest to study one of the major unresolved conundrums in aquatic microbiology which is what distinguishes a marine microbe from a freshwater one? We address this question using ecogenomics of a group of picocyanobacteria (cluster 5) that have recently evolved to inhabit geographically disparate salinity niches. Our analysis is made possible by the sequencing of 58 new genomes from freshwater representatives of this group that are presented here, representing a 6-fold increase in the available genomic data.

Results

Overall, freshwater strains had larger genomes (≈2.9 Mb) and %GC content (≈64%) compare

SUBMITTER: Cabello-Yeves PJ 

PROVIDER: S-EPMC9361551 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature