biostudies-literatureGuo KTeaching Quality Experimental Teaching Demonstration Center Project of Guangdong ProvinceMEL Visiting Fellowship of Xiamen UniversityGuangdong Basic and Applied Basic Research FoundationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)e0116422https://www.ebi.ac.uk/biostudies/studies/S-EPMC9872673biostudies-literatureUnknown12(1)Cognatishimia activa, previously known as <i>Thalassobius activus</i>, has been frequently isolated from marine environments. Here, we present the complete genome sequence of <i>C</i>. <i>activa</i> strain SOCE 004, assembled from the phycosphere of a long-term laboratory-maintained culture of the diatom Skeletonema tropicum. The complete genome is 3,211,994 bp long, with an average G+C content of 53.69%. The genome contains 3,195 genes, including 3,133 protein-coding genes, 50 tRNAs, and 3 copies each of 5S, 16S, and 23S rRNA genes.Microbiology resource announcementsComplete Genome Sequence of a Cognatishimia activa Strain Assembled from the Phycosphere of the Marine Diatom Skeletonema tropicum.PMC9872673MELRS22102021B1515120080SJZLGC2021114227616331970367Liu YGuo KChen ZXu SHou SfalseComplete Genome Sequence of a Cognatishimia activa Strain Assembled from the Phycosphere of the Marine Diatom Skeletonema tropicum.Cognatishimia activa, previously known as <i>Thalassobius activus</i>, has been frequently isolated from marine environments. Here, we present the complete genome sequence of <i>C</i>. <i>activa</i> strain SOCE 004, assembled from the phycosphere of a long-term laboratory-maintained culture of the diatom Skeletonema tropicum. The complete genome is 3,211,994 bp long, with an average G+C content of 53.69%. The genome contains 3,195 genes, including 3,133 protein-coding genes, 50 tRNAs, and 3 copies each of 5S, 16S, and 23S rRNA genes.2023-01-01T00:00:00Z2023 Jan2025-04-04T11:26:42.081Z2025-04-04T11:26:42.081ZS-EPMC98726733659823310.1128/mra.01164-22