The first complete mitogenome of Onychostoma ovale (Pellegrin & Chevey, 1936) with phylogenetic analyses

Onychostoma ovale (Pellegrin & Chevey, 1936) is an endemic cyprinid fish that is widely inhabited in southern China, Vietnam, and Laos. In the present study, we first reported the complete mitochondrial genome of O. ovale. The mitogenome contained 16,600 bp with AT content of 56.2% and comprised of 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and one control region (D-loop). Phylogenetic analyses suggested that Onychostoma species formed two major clades and the subspecies of O. ovale had close relationship with O. rarum. The mitochondrial genome of O. ovale provided a key aid for population genetics and phylogenetic inferences of Onychostoma in future research.