A planetary-scale understanding of the ocean ecosystem, particularly in light of climate
change, is crucial. Here, we review the work of Tara Oceans, an international …

Photosynthesis evolved in the ocean more than 2 billion years ago and is now performed by
a wide range of evolutionarily distinct organisms, including both prokaryotes and …

Microorganisms play a crucial role in mediating global biogeochemical cycles in the marine
environment. By reconstructing the genomes of environmental organisms through …

Marine picocyanobacteria of the genera Prochlorococcus and Synechococcus, the two most
abundant phototrophs on Earth, thrive in oligotrophic oceanic regions. While it is well known …

Microdiversity can lead to different ecotypes within the same species. These are assumed to
provide stability in time and space to those species. However, the role of microdiversity in …

A unique collection of oceanic samples was gathered by the Tara Oceans expeditions (2009–
2013), targeting plankton organisms ranging from viruses to metazoans, and providing rich …

Bacteria display dynamic abundance fluctuations over time in marine environments, where
they play key biogeochemical roles. Here, we characterized the seasonal dynamics of …

Marine Synechococcus cyanobacteria are major contributors to global oceanic primary
production and exhibit a unique diversity of photosynthetic pigments, allowing them to …

Cyanobacteria are major contributors to global biogeochemical cycles. The genetic diversity
among Cyanobacteria enables them to thrive across many habitats, although only a few …

With rapidly improving sequencing technologies, scientists have recently gained the ability
to examine diverse microbial communities at high genomic resolution, revealing that both …