title: Complete genome sequence of a marine bacterium with two chromosomes, Pseudoalteromonas translucida KMM 520(T).
abstract: Bacteria with multiple chromosomes provide new insights into the evolution of multipartite genome structures and bacterial survival strategies. In this study, we report the complete genome sequence of Pseudoalteromonas translucida KMM 520(T), which contains two circular chromosomes and comprises 4,147,593 bp with a mean G+C content of 40.1%. The two chromosomes have similar G+C contents and similar percentages of coding regions. Chromosome II of P. translucida possesses a plasmid-type replication initiator protein (RepA), which indicated that chromosome II is probably originated from a plasmid. COG functional categories revealed that the two chromosomes have divergent distributions of functional categories, which indicated that they bear different responsibilities for cellular functions. The complete genome sequence of P. translucida contributes to a better understanding of the origin and evolution of the additional chromosome and the physiology of Pseudoalteromonas genus.
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
authors: Jin-Cheng
authors: JC
authors: Rong
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
authors: Min
authors: M
authors: Liu
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
authors: Yi
authors: Y
authors: Li
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
authors: Tian-Yong
authors: TY
authors: Sun
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China.
authors: Xiu-Hua
authors: XH
authors: Pang
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China; Institute of Marine Science and Technology, Shandong University, Jinan 250100, China.
authors: Qi-Long
authors: QL
authors: Qin
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China; Institute of Marine Science and Technology, Shandong University, Jinan 250100, China.
authors: Xiu-Lan
authors: XL
authors: Chen
authors: State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan 250100, China; Institute of Marine Science and Technology, Shandong University, Jinan 250100, China. Electronic address: xbb@sdu.edu.cn.
authors: Bin-Bin
authors: BB
authors: Xie
mesh_terms: D002876:Chromosomes, Bacterial / Q000235:genetics*; D020563:Gammaproteobacteria / Q000235:genetics*; D016680:Genome, Bacterial / Q000235:genetics*
keywords: COG functional categories; Multiple chromosomes; Pseudoalteromonas