Complete mitochondrial genome sequence and phylogenetic analysis of the hybrid flat fish Platichthys stellatus (♀) × Platichthys bicoloratus (♂)

Abstract

We report the complete mitochondrial genome of the hybrid flounder Platichthys stellatus (♀) [Formula: see text] Platichthys bicoloratus (♂). The mitochondrial genome contained 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and 1 control region (D-loop), for a total length of 16,874 bp. The nucleotide composition of the heavy strand was 29.15% C, 26.99% A, 26.14% T, and 17.71% G. A maximum-likelihood phylogenetic analysis showed that the hybrid flat fish was a member of the same clade as P. stellatus (maternal inheritance). Our findings add to the extant data on the subfamily Pleuronecidae and provide insight into their molecular phylogeny and taxonomy.

Keywords

• Pleuronecidea
• Platichthys stellatus
• Platichthys bicoloratus
• flounder
• mithogenome
• hybridization