A new article, published in the ASM journal Microbiology Resource Announcements, reports the genome sequence of the marine bacterium Roseobacter sp. EG26isolated from the octocoral Eunicella gazellaoff the coast of Portugal. The study highlights enriched genomic features, including type II, III, IV, and VI secretion systems, ankyrin-repeat proteins, and taurine degradation, suggesting a preference for a host-associated lifestyle. Moreover, the strain holds the genomic blueprint for the biosynthesis of vitamins B1, B6, B7, B9, and B12. The strain is available at Técnico’s MicroEcoEvoCC, an extensive, well-curated marine bacterial culture collection integrated into the Portuguese Blue Biobank. The genome of strain EG26 was assembled and analysed by Selene Madureira in the framework of her MSc thesis and the work was led by iBB/DBE researchers Tina Keller-Costa and Rodrigo Costa. See more.