Abstract

The complete mitochondrial genome of pitted stingray, Bathytoshia brevicaudata (Myliobatiformes: Dasyatoidea) was investigated by next-generation sequencing. The analyzed mitochondrial genome was 17,640 nucleotides in length and had 59.2% for AT contents. This genome contains 2 ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes. and 1 putative control region. Five protein-coding genes (ATPase6, COII, ND2, ND3, ND4) including incomplete stop codons and four tRNAs have atypical codons. The phylogenetic inference including 13 species of the same family revealed a close relationship with Pteroplatytrygon violacea. This is the first mitochondrial genome report from genus Bathytoshia.

摘要

通过下一代测序研究了有凹痕的黄貂鱼（Bathytoshia brevicaudata）（Myliobatiformes：Dasyatoidea）的完整线粒体基因组。分析的线粒体基因组长度为17,640个核苷酸，AT含量为59.2％。该基因组包含2个核糖体RNA基因，13个蛋白质编码基因，22个转移RNA基因。和1个假定的控制区域。五个蛋白质编码基因（ATPase6，COII，ND2，ND3，ND4）包括不完整的终止密码子和四个tRNA具有非典型密码子。系统发育推论包括同一家族的13种，揭示与紫翼蕨的关系密切。这是Bathytoshia属的第一个线粒体基因组报告。