title: The complete mitochondrial genome of Brachymystax lenok tsinlingensis (Salmoninae, Salmonidae) and its intraspecific variation.
abstract: The Manchurian trout, Brachymystax lenok tsinlingensis, is endangered in Korea, where the southern range limit for this cold-freshwater fish occurs. In this study, the complete mitochondrial genome of Korean B. lenok tsinlingensis was sequenced and its genetic characteristics were identified. The mitogenome of B. lenok tsinlingensis comprises 16,748 base pairs containing 37 genes (13 protein-coding genes, 22 tRNA genes, and 2 rRNA genes) and one major non-coding region (control region), making it similar to the majority of vertebrate mitogenomes. Interestingly, at the base of the stem region of OL in B. lenok tsinlingensis, the conserved motif is replaced by a 5'-ACCGG-3' motif instead of the 5'-GCCGG-3'. We also identified an 81-base-pair tandem-repeat motif in the control region, the length of which is reduced by one nucleotide compared to those in B. lenok and Hucho species. The number of repeat motifs differed between Korean and Chinese B. lenok tsinlingensis, with two and three reiterations, respectively. The control region of B. lenok and its relatives will be used as a genetic marker in evolution/genetic studies and as a PCR-based marker for rapid identification of their lineages.
authors.affiliation: National Institute of Biological Resources, Environmental Research Complex, Incheon 404-708, Republic of Korea.
authors.forename: Jeong-Nam
authors.initials: JN
authors.lastname: Yu
authors.affiliation: National Institute of Biological Resources, Environmental Research Complex, Incheon 404-708, Republic of Korea. Electronic address: mhkwak1@korea.kr.
authors.forename: Myounghai
authors.initials: M
authors.lastname: Kwak
mesh_terms: D000818:Animals; D001483:Base Sequence; D029941:Fish Proteins / Q000235:genetics; D014644:Genetic Variation; D054629:Genome, Mitochondrial; D024101:Mitochondrial Proteins / Q000235:genetics; D058977:Molecular Sequence Annotation; D016366:Open Reading Frames; D010802:Phylogeny; D012487:Salmonidae / Q000235:genetics*; D013045:Species Specificity
chemical_list: D029941:Fish Proteins; D024101:Mitochondrial Proteins
keywords: Brachymystax lenok tsinlingensis; Control region; Mitochondrial genome; Salmonidae