Complete mitochondrial genome sequence of Trachyrhamphus serratus with phylogenetic implications for the family Syngnathidae

Abstract

In this study, the complete mitochondrial sequence of the crested pipefish, Trachyrhamphus serratus (T. serratus) has been amplified and sequenced. The mtDNA of T. serratus was a circular molecule of 16,597 bp in length with 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and a control region. The lengths of 12S and 16S rRNA were 936 bp and 1863 bp, respectively. Phylogenetic analysis indicated that T. serratus clustered together with Corythoichthys flavofasciatus, suggesting a close relationship between the two genera. This was the first record of the complete mitochondrial genome from the genus Trachyrhamphus, which will be useful for the elucidation of evolution and conservation strategy in Syngnathidae family.

Keywords

• trachyrhamphus serratus
• mitochondrial genome
• phylogeny analysis
• syngnathidae family