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Mitochondrial DNA. 2014 Apr;25(2):91-2. doi: 10.3109/19401736.2013.784751. Epub 2013 Jul 8.

Complete mitochondrial genome of the spadenose shark (Scoliodon macrorhynchos).

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  • 1Zhejiang Mariculture Research Institute , Wenzhou, Zhejiang , China and.


We firstly presented the complete mitogenome of the spadenose shark Scoliodon macrorhynchos (Carcharhinidae, Carcharhiniformes). The mitogenome is 16,693 bp long and contains 13 protein-coding genes, two rRNAs, 22 tRNAs and one control region, a typical vertebrate arrangement. The codon usage bias was different between the H-strand and L-strand encoded protein genes. All tRNA genes have the typical cloverleaf secondary structure excepting tRNA-Ser2, in which the dihydrouridine (DHU) arm is replaced by a simple loop with 12 unpaired nucleotides. A termination associated sequence and three conserved sequence blocks (CSB I-III) were identified in the control region, which were considered associating with the replication and transcription of mitogenome.

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