Genome Sequences of Oceanicola granulosus HTCC2516T and

Genome sequences from the prolific Roseobacter clade in the Alphaproteobacteria are beginning to reveal the genetic basis for the diverse lifestyles of these organisms. Here we present the genome sequences of Oceanicola granulosus HTCC2516T and Oceanicola batsensis HTCC2597T, two marine Roseobacter species isolated from the Sargasso Sea using dilution-to-extinction culturing, whose genomes encode for significant differences in metabolic potential. Members of the Roseobacter clade are ecologically and phys-iologically diverse, occupying a wide variety of lifestyles (1, 2, 7). Oceanicola granulosus HTCC2516T and Oceanicola batsen-sis HTCC2597T were isolated by dilution-to-extinction cultur-ing in low-nutrient heterotrophic media (LNHM) (4) from water collected at the Bermuda Atlantic Time-Series Study (BATS) station in the Sargasso Sea (3, 5). The genomes were shotgun sequenced by the J. Craig Venter Institute as part o