Abstract

In the present study, we sequenced and analyzed the complete mitochondrial genome of the hydrozoan jellyfish Spirocodon saltatrix. The mitochondrial genome was a linear form (15,752 bp long, 70.4% AT), consisting of 13 protein coding genes (cox1, cox2, atp8, atp6, cox3, nad2, nad5, nad6, nad3, nad4L, nad1, nad4, and cytB), two tRNAs (tRNA-Met and tRNA-Trp), and two rRNAs (12S and 16S). Mitochondrial gene arrangement of the S. saltatrix was completely identical to already-known mitochondrial genomes of hydrozoans. Molecular phylogenetic analysis using 13 protein-coding genes showed that S. saltatrix was closely related to the hydrozoan Clava multicornis.

摘要

在本研究中，我们测序并分析了水生动物水母Spirocodon saltatrix的完整线粒体基因组。线粒体基因组是线性形式（长15752 bp，AT的70.4％），由13种蛋白质编码基因（cox1，cox2，atp8，atp6，cox3，nad2，nad5，nad6，nad3，nad4L，nad1，nad4和cytB组成），两个tRNA（tRNA-Met和tRNA-Trp）和两个rRNA（12S和16S）。盐藻链球菌的线粒体基因排列与水生动物的线粒体基因组完全相同。使用13个蛋白质编码基因的分子系统发育分析表明，S. saltatrix是密切相关的水螅鞘multicornis。