Chen Xiao, Liu Min, Grewe Peter M, Kyne Peter M, Feutry Pierre
Laboratory of Marine Biodiversity and Global Change, College of Ocean and Earth Sciences, Xiamen University , Xiamen, Fujian , China .
Mitochondrial DNA. 2014 Dec;25(6):431-2. doi: 10.3109/19401736.2013.809443. Epub 2013 Jul 16.
In this study we present the first complete mitogenome for the speartooth shark Glyphis glyphis, a rare euryhaline elasmobranch from northern Australia and Papua New Guinea. The mitogenome is 16,702 bp in length and the overall base composition is 31.5% A; 26.0% C; 13.0% G and 29.5% T. It includes 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, 13 protein-coding genes and a putative 1066 bp long control region. The COI gene is initiated by GTG codon whereas the remaining protein-coding genes started with the ATG codon. This study will help elucidate the taxonomy of this poorly known group of sharks.
在本研究中，我们展示了矛齿鲨（Glyphis glyphis）的首个完整线粒体基因组，矛齿鲨是一种来自澳大利亚北部和巴布亚新几内亚的罕见广盐性软骨鱼。该线粒体基因组长度为16,702 bp，总体碱基组成为：A占31.5%；C占26.0%；G占13.0%；T占29.5%。它包括2个核糖体RNA（rRNA）基因、22个转运RNA（tRNA）基因、13个蛋白质编码基因以及一个推测长度为1066 bp的控制区。细胞色素氧化酶亚基I（COI）基因由GTG密码子起始，而其余蛋白质编码基因则以ATG密码子起始。本研究将有助于阐明这一鲜为人知的鲨鱼群体的分类学。
