Shotgun metagenomics reveals the flexibility and diversity of Arctic marine microbiomes.

ABSTRACT: Polar oceanographic regions are exposed to rapid changes in temperature, salinity, and light fields that determine microbial species distributions, but resilience to an increasingly unstable climate is unknown. To unravel microbial genomic potential of the Northern Baffin Bay's polynya, we constructed eight metagenomes from the same latitude but targeting two sides of Pikialasorsuaq (The North Water) that differ by current systems, stratification, and temperature regimes. Samples from the surface and subsurface chlorophyll maximum (SCM) of both sides were collected 13 months apart. Details of metabolic pathways were determined for 18 bacteria and 10 microbial eukaryote metagenome-assembled genomes (MAGs). The microbial eukaryotic MAGs were associated with the dominant green algae in

SUBMITTER: Freyria NJ 

PROVIDER: S-EPMC11847657 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature