Lee Sang-Heon, Choe Hanna, Kim Byung Kwon, Nasir Arshan, Kim Kyung Mo
Microbial Resource Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea; Department of Bioinformatics, University of Science and Technology, Daejeon, Republic of Korea.
Microbial Resource Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.
Mar Genomics. 2015 Dec;24 Pt 3:277-80. doi: 10.1016/j.margen.2015.09.006. Epub 2015 Sep 26.
Wenzhouxiangella marina is an obligatory aerobic, Gram-negative, non-motile, rod-shaped bacterium that was isolated from the culture broth of marine microalgae, Picochlorum sp. 122. Here we report the 3.67 MB complete genome (65.26 G+C%) of W. marina KCTC 42284(T) encoding 3,016 protein-coding genes, 43 tRNAs and one rRNA operon. The genomic information supports multiple horizontal gene transfer (HGT) events in the history of W. marina, possibly with other marine bacteria co-existing in marine habitats. Evaluation of genomic signatures revealed 19 such HGT-derived genomic islands. Of these, eight were also supported by "genomic context" that refers to the existence of integrases, transposases and tmRNA genes either inside or in near vicinity to the island. The addition of W. marina genome expands the repertoire of marine bacterial genomic diversity, especially because the strain represents the sole genomic resource of a novel taxonomic family in the bacterial order Chromatiales.
温州海氏菌是一种需氧、革兰氏阴性、无运动性的杆状细菌，从海洋微藻皮果藻属122号菌株的培养液中分离得到。在此，我们报告了温州海氏菌KCTC 42284(T)的3.67兆碱基对的完整基因组（G+C含量为65.26%），该基因组编码3016个蛋白质编码基因、43个tRNA和一个rRNA操纵子。基因组信息支持温州海氏菌在进化史上发生过多次水平基因转移（HGT）事件，可能与海洋栖息地中共同存在的其他海洋细菌有关。对基因组特征的评估揭示了19个此类源自HGT的基因组岛。其中，有8个还得到了“基因组背景”的支持，“基因组背景”指的是在该岛内部或附近存在整合酶、转座酶和tmRNA基因。温州海氏菌基因组的加入扩展了海洋细菌基因组多样性的范围，特别是因为该菌株代表了细菌目色杆菌目中一个新分类科的唯一基因组资源。
