Niche-directed evolution modulates genome architecture in freshwater Planctomycetes.

ABSTRACT: Freshwater environments teem with microbes that do not have counterparts in culture collections or genetic data available in genomic repositories. Currently, our apprehension of evolutionary ecology of freshwater bacteria is hampered by the difficulty to establish organism models for the most representative clades. To circumvent the bottlenecks inherent to the cultivation-based techniques, we applied ecogenomics approaches in order to unravel the evolutionary history and the processes that drive genome architecture in hallmark freshwater lineages from the phylum Planctomycetes. The evolutionary history inferences showed that sediment/soil Planctomycetes transitioned to aquatic environments, where they gave rise to new freshwater-specific clades. The most abundant lineage was found to have

SUBMITTER: Andrei AS 

PROVIDER: S-EPMC6461901 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature