The first complete genome sequence of Microbulbifer celer KCTC12973, a type strain with multiple polysaccharide degradation genes.

Genus Microbulbifer plays important roles in element cycling process in marine environments, and the first type strain KCTC 12973 (=ISL-39 = CCUG 54356) of M. celer was isolated and identified in 2007. However, the genome sequence of M. celer KCTC 12973 is still unclear, which complicates the functional exploration and new species identification of other species belonged to this genus. This study reported the complete genome sequence of M. celer KCTC 12973 with a genome size of 4,346,001 bp. A total of 3601 protein-coding genes were annotated in the genome. The potential genes involved in the polysaccharide degradation, including cellulose, chitin, xylan, and pectate, were found in the protein-coding genes. Besides, the reductase genes of nitrate and nitrite were also annotated in the genome. These findings indicated the potential crucial ecological functions of M. celer KCTC 12973 for carbon and nitrogen cycles in marine ecosystems.