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Abstract
The complete mitochondrial genome of Mustelus griseus was first determined in this study. It is 16,754 bp in length, consisting of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and 1 control region with the typical gene order in vertebrates. Overall nucleotide base composition of the mitogenome is 30.7% A, 24.9% C, 14.0% G and 30.3% T. After aligning, it comes to us that the mitogenomic portions of M. griseus are very similar to those of Mustelus manazo, ranging from 86.92% (control region) to 100% (tRNA-His and tRNA-Leu2). The origin of L-strand replication (OL) is identified between tRNA-Asn and tRNA-Cys genes. The control region is located between the tRNA-Pro and tRNA-Phe genes, containing one termination-associated sequence (TAS) and three short conserved sequences (CSB 1-3).
Declaration of interest
This study was supported by the National Natural Sciences Foundation of China (41006080) and the Major Projects of Basic Research in the Beibu Gulf of Guangxi (2010GXNSFE013002). The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.