title: Complete mitochondrial genome of the spadenose shark (Scoliodon macrorhynchos).
abstract: 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.
authors.affiliation: Zhejiang Mariculture Research Institute , Wenzhou, Zhejiang , China and.
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
authors.forename: Xin
authors.initials: X
authors.lastname: Peng
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Shenyun
authors.initials: S
authors.lastname: Yang
authors.forename: Min
authors.initials: M
authors.lastname: Liu
mesh_terms: D000818:Animals; D004272:DNA, Mitochondrial / Q000235:genetics; D054629:Genome, Mitochondrial; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D012335:RNA, Ribosomal / Q000235:genetics; D012343:RNA, Transfer / Q000235:genetics; D017422:Sequence Analysis, DNA; D017423:Sequence Analysis, RNA; D012754:Sharks / Q000235:genetics*; D014529:Uridine / Q000737:chemistry
chemical_list: D004272:DNA, Mitochondrial; D012335:RNA, Ribosomal; D012343:RNA, Transfer; D014529:Uridine