The complete mitochondrial genome and gene organization of Cubiceps squamiceps (Perciformes: nomeidae) with phylogenetic consideration

Abstract

In this study, we reported the complete mitochondrial DNA sequence of Cubiceps squamiceps, and its phylogenetic relationship. The full length of this mitogenome was 16 510 bp, including 22 transfer RNA genes, two ribosomal RNA genes, 13 protein-coding genes, and a putative control region. The location of genes in mitochondrial genome was similar to other fish species within family Nomeidae. Twenty-eight genes were located on the heavy strand, while nine genes were located on the light strand. The nucleotide composition of this mitogenome was 27.5% for A, 28.5% for C, 17.5% for G, and 26.5% for T. From the NJ phylogenetic tree, we can find that C. squamiceps was genetically closest to C. pauciradiatus among 20 species within suborder Stromateoidei. This study could lay the basis for the future studies in population genetic diversity, taxonomic status, molecular systematics, and conservation genetics in C. squamiceps.

Keywords:

• Complete mitogenome
• genome structure
• Cubiceps squamiceps
• phylogeny

Declaration of interest

This work was supported by the National Basic Research Special Foundation of China (2013FY110700), and the National Infrastructure of Fishery Germplasm Resources. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.