title: Complete mitochondrial genome of the largest living fish: whale shark Rhincodon typus (Orectolobiformes: Rhincodontidae).
abstract: The whale shark Rhincodon typus (Pisces: Chondrichthyes, Orectolobiformes, Rhincodontidae) is the largest living fish on Earth. In this study, we presented its complete mitogenome. It is 16,928 bp in length, contains 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and one control region with the typical gene order and transcriptional direction in the vertebrates. Overall base composition of the R. typus mitogenome is 33.5% A, 24.3% C, 12.8% G and 29.5% T. Two start codon (GTG and ATG) and two stop codon patterns (TAG and TAA/T) were found in protein-coding genes. The tRNA-Ser2 could not be folded into the typical cloverleaf secondary structure because of the replacement of its dihydrouridine arm by a simple loop. A termination associated sequences (TAS) and three conserved sequence blocks (CSB1-3) were identified in the control region.
authors.affiliation: a Guangxi Key Lab for Mangrove Conservation and Utilization , Guangxi Mangrove Research Center, Guangxi Academy of Sciences , Beihai , PR China and.|b Department of Marine Biotechnology , School of Life Science, Wenzhou Medical University , Wenzhou , PR China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
authors.affiliation: b Department of Marine Biotechnology , School of Life Science, Wenzhou Medical University , Wenzhou , PR China.
authors.forename: Weiming
authors.initials: W
authors.lastname: Ai
authors.affiliation: a Guangxi Key Lab for Mangrove Conservation and Utilization , Guangxi Mangrove Research Center, Guangxi Academy of Sciences , Beihai , PR China and.
authors.forename: Lianghao
authors.initials: L
authors.lastname: Pan
authors.affiliation: a Guangxi Key Lab for Mangrove Conservation and Utilization , Guangxi Mangrove Research Center, Guangxi Academy of Sciences , Beihai , PR China and.
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Shi
mesh_terms: D000818:Animals; D001483:Base Sequence / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics; D054629:Genome, Mitochondrial; D008969:Molecular Sequence Data; D017422:Sequence Analysis, DNA / Q000662:veterinary; D012754:Sharks / Q000235:genetics*
chemical_list: D004272:DNA, Mitochondrial
keywords: Chondrichthyes; mitogenome; whale shark