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  • Title: The complete mitochondrial genome of the marbled rockfish Sebastiscus marmoratus (Scorpaeniformes, Scorpaenidae): genome characterization and phylogenetic considerations.
    Author: Xu TJ, Cheng YZ, Liu XZ, Shi G, Wang RX.
    Journal: Mol Biol (Mosk); 2011; 45(3):434-45. PubMed ID: 21790005.
    Abstract:
    The complete mitochondrial genome sequence of the marbled rockfish Sebastiscus marmoratus (Scorpaeniformes, Scorpaenidae) was determined and phylogenetic analysis was conducted to elucidate the evolutionary relationship of the marbled rockfish with other Sebastinae species. This mitochondrial genome, consisting of 17301 bp, is highly similar to that of most other vertebrates, containing the same gene order and an identical number of genes or regions, including 13 protein-coding genes, two ribosomal RNAs, 22 transfer RNAs, and one putative control region. Most of the genes are encoded on the H-strand, while the ND6 and seven tRNA genes (for Gln, Ala, Asn, Tyr, Ser (UCA), Glu, and Pro) are encoded on the L-strand. The reading frame of two pairs of genes overlapped on the same strand (the ATPase 8 and 6 genes overlapped by ten nucleotides; ND4L and ND4 genes overlapped by seven nucleotides). The possibly nonfunctional light-strand replication origin folded into a typical stem-loop secondary structure and a conserved motif (5'-GCCGG-3') was found at the base of the stem within the tRNA(Cys) gene. An extent termination-associated sequence (ETAS) and conserved sequence blocks (CSB) were identified in the control region, except for CSB-1; unusual long tandem repeats were found at the 3' end of the control region. Phylogenetic analyses supported the view that Sebastinae comprises four genera (Sebates, Hozukius, Helicolenus, and Sebasticus).
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