title: The complete mitochondrial genome of the taimen, Hucho taimen, and its unusual features in the control region.
abstract: The whole mitochondrial genome of Hucho taimen was firstly sequenced and characterized. The genome is 16,833 bp in length and contains 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a noncoding control region. Twelve protein-coding genes on the heavy strand showed that the content of A+T was higher than that of G+C, whereas the nd6 protein-coding gene on the light strand displayed an opposite pattern. We described the secondary structure of the origin of light strand (oriL) replication and found that the conserved 5'-GCCGG-3' sequence motif is variable in H. taimen and some other salmonids. We conclude that the control region is variable in length and represents the high A+T content, compared with other mitochondrial control regions available in Salmonidae and other non-salmonids. Additionally, another interesting feature of H. taimen mitogenome is that a T-type mononucleotide microsatellite and an 82 bp tandem repeat were identified in the control region.
authors: Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu 610064, People's Republic of China.
authors: Ying
authors: Y
authors: Wang
authors: Xiuyue
authors: X
authors: Zhang
authors: Shiyong
authors: S
authors: Yang
authors: Zhaobin
authors: Z
authors: Song
mesh_terms: D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004272:DNA, Mitochondrial / Q000235:genetics*; D050259:Genes, Mitochondrial / Q000235:genetics; D054629:Genome, Mitochondrial / Q000235:genetics*; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D016133:Polymerase Chain Reaction; D018741:Replication Origin / Q000235:genetics*; D012487:Salmonidae / Q000235:genetics*; D017422:Sequence Analysis, DNA; D020080:Tandem Repeat Sequences / Q000235:genetics*
chemical_list: D004272:DNA, Mitochondrial