 The complete genomes of two different Micromonas strains revealed that they were quite different (different species) - and had similarities with land plants.Several other cyanobacteria and of small eukaryotes ("Bathycoccus", "Pelagomonas") are under sequencing.In parallel, genome analyses begin to be done directly from oceanic samples (ecogenomics or métagenomics), allowing us to access to large sets of gene for uncultivated organisms.