The complete mitochondrial genome of Kumgang fat minnow Rhynchocypris kumgangensis (Cypriniformes, Leuciscinae) in Korea.

The Kumgang fat minnow (Rhynchocypris kumgangensis) is an endemic and critically endangered freshwater species in the Korean peninsula. Its genome is 16604 bp long and consists of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control region (CR). The gene order and composition of R. kumgangensis was similar to that of most other vertebrates. The base composition of the H-strand in descending order was A (27.75%), C (27.58%), T (26.31%), and G (18.36%), with an AT content of 54.06%. Three overlapping regions among the 13 protein-coding genes were found (i.e. ATP8/ATP6, ND4L/ND4, and ND5/ND6). The CR was located between the tRNA-Pro and tRNA-Phe genes and was determined to be 932 bp in length. Typical conserved domains, such as termination associated sequence and conserved sequence blocks, were identified in the CR.