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The complete mitochondrial genome of the black star fat minnow (Rhynchocypris semotilus), an endemic and endangered fish of Korea

Abstract The Black star fat minnow (Rhynchocypris semotilus) is an endemic and critically endangered freshwater fish in Korea. Its genome was 16 605 bp long and consisted of 13 protein-coding genes (PCG), two rRNA genes, 22 tRNA genes, and a control region. The gene order and the composition of R. semotilus were similar to that of most other vertebrates. Four overlapping regions in ATP8/ATP6, ATP6/COX3, ND4L/ND4, and ND5/ND6, among the 13 PCGs were found. The control region was located between the tRNA-Pro and tRNA-Phe genes and was determined to be 935 bp in length with the 3′ end containing a 12 TA-repeat sequence. Phylogenetic analysis suggested that R. semotilus is most closely related to R. oxycephalus.