Lutra lutra mitochondrial genome

In this study, we reported the complete mitochondrial genome sequence of endangered species, Lutra lutra. The complete mitogenome was 16,537 bp in length in 13 protein coding gene, 22 transfer RNA, 2 ribosomal RNA and 1 control region. The nucleotide base composition of 32.2% A, 27.5% C, 14.5% G and 25.8% T with A-T content higher than C-G content. Phylogenetic analysis based on 13 protein coding genes of Mustelidae showed that supporting the existing 8 subfamilies. Lutra lutra is closely related to L. sumatrana and Lutrinae and Ictonychinae are grouped. The genetic resources of Korean Lutra lutra obtained from this study will provide a variety of genetic studies for Eurasian otters.本研究报道了濒危物种欧亚水獭（Lutra lutra）的完整线粒体基因组序列。该完整线粒体基因组全长16537 bp，包含13个蛋白质编码基因、22个转运RNA（transfer RNA）、2个核糖体RNA（ribosomal RNA）以及1个控制区。其核苷酸碱基组成为A占32.2%、C占27.5%、G占14.5%、T占25.8%，A-T碱基含量显著高于C-G碱基含量。基于鼬科（Mustelidae）13个蛋白质编码基因的系统发育分析结果，验证了当前已确立的8个亚科的分类合理性。欧亚水獭与苏门答腊水獭（L. sumatrana）亲缘关系紧密，且水獭亚科（Lutrinae）与缟鼬亚科（Ictonychinae）聚为一支。本研究获取的韩国境内欧亚水獭遗传资源，将为欧亚水獭的各类遗传学研究提供重要支撑。