Organization of the mitochondrial genome of Odontobutis sinensis (Perciformes: Odontobutidae): rearrangement of tRNAs and additional non-coding regions

Abstract

In this study, we cloned and sequenced the complete mitochondrial genome of Odontobutis sinensis. The genome was found to be 17,441 bp in size with a mostly conserved structural organization when compared with that of other teleost fish. It contained 37 genes (13 protein-coding genes, 22 transfer RNA genes and two ribosomal RNA genes) and two main non-coding regions (the control region and the origin of the light strand replication). Rearrangements of tRNAs (tRNA-Ser, tRNA-Leu, tRNA-His) and three additional longer non-coding regions (51 bp, 622 bp and 66 bp, respectively) were present between the ND4 and ND5 genes. Within the control region, one 322 bp long tandem repeat area (7*46 bp) and some typical conserved domains were identified. The molecular data here we presented could play a useful role to study the evolutionary relationships and population genetics of the Odontobutidae.

• Mitochondrial genome
• non-coding region
• Odontobutis sinensis
• rearrangement

Declaration of interest

This work was financially supported by the Fundamental Research Funds for the Central Universities (No. 2013SC05 and No. 2012ZYTS027) and Project of Wetland Restoration and Protection of Liangzi Lake. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the article.