title: Mitochondrial DNA control region of three mackerels, genus Rastrelliger: structure, molecular diversity and phylogenetic relationship.
abstract: The complete mitochondrial control regions (CR) of three mackerels (Rastrelliger spp.) were examined and analyzed. The CR contained three domains, in which three termination-associated sequences (TAS-I, TAS-II and TAS-III), two central conserved sequence blocks (CSB-E, CSB-D), three conserved sequence blocks (CSB-I, CSB-II, and CSB-III) and a putative promoter were detected. Molecular indices analyses of the aligned complete CR sequences showed high level of haplotype diversities and genetic divergences among the three species. The intraspecific divergence among species of this genus ranked from 0.25% to 1.62% and interspecific divergence from 1.90% to 4.30%. The phylogenetic tree shows monophyly with R. brachysoma as a basal species of Rastrelliger. Applying the average divergence rate for fish control regions, the results suggest that the time of separation among Rastrelligers could have occurred in the middle Pleistocene era.
authors.affiliation: a Department of Genetics , Kasetsart University , Bangkok , Thailand and.
authors.forename: Amnuay
authors.initials: A
authors.lastname: Jondeung
authors.affiliation: b Department of Biology , Rambhai Barni Rajabhat University , Chanthaburi , Thailand.
authors.forename: Wirangrong
authors.initials: W
authors.lastname: Karinthanyakit
mesh_terms: D000818:Animals; D001482:Base Composition; D001483:Base Sequence; D017124:Conserved Sequence; D004272:DNA, Mitochondrial; D019143:Evolution, Molecular; D050259:Genes, Mitochondrial; D014644:Genetic Variation; D059646:Genome Size; D054629:Genome, Mitochondrial; D006239:Haplotypes; D016366:Open Reading Frames; D010473:Perciformes / Q000145:classification* / Q000235:genetics*; D010802:Phylogeny; D012045:Regulatory Sequences, Nucleic Acid; D017422:Sequence Analysis, DNA; D000073336:Whole Genome Sequencing
chemical_list: D004272:DNA, Mitochondrial
keywords: Control region; molecular indices; phylogenetic relationship; structure; time separation