Abstract
To understand the systematic status of Bahaba taipingensis within Sciaenidae, the complete mitochondrial genome (mitogenome) sequence of Chinese bahaba has recently been determined by long PCR and primer walking methods. The complete mitochondrial genome is 16500 bp in length and contains 37 mitochondrial genes (13 protein-coding genes, 2 ribosomal RNA genes and 22 transfer RNA genes) as well as a control region (CR) as other bony fishes. Within the control region, we identified the extended termination associated sequence domain (ETAS), the central conserved sequence block domain (CSB-D, SCB-E and CSB-F) and the conserved sequence block domain (CSB-1, CSB-2 and CSB-3). Phylogenetic analyses revealed that Bahaba taipingensis is more closely related to Pseudosciaeniae than Argyrosominae and Sciaeninae. Additionally, Bahaba taipingensis is the sister taxon of Miichthys miiuy, and those two are sister to Collichthys plus Larimichthys.
Highlights
The complete mitochondrial DNA sequence of vertebrates is a circular molecule with a length of 16-19 kb that includes 37 genes containing 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a control region (CR) (Anderson et al 1981; Boore et al 1999)
The complete mitogenome of B. taipingensis was sequenced to be 16500 bp which consisted of 13 typical vertebrate protein-coding genes, 22 transfer RNA (tRNA) genes, 2 ribosomal RNA (rRNA) genes, and 1 putative control region (CR, Table 3)
The encoding genes of mitogenome were located on H-strand with the exception of ND6 and 8 tRNA genes that were transcribed from L-strand (Table 3)
Summary
The complete mitochondrial DNA (mtDNA) sequence of vertebrates is a circular molecule with a length of 16-19 kb that includes 37 genes containing 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and a control region (CR) (Anderson et al 1981; Boore et al 1999). We conducted phylogenetic analyses based on the mitochondrial sequence data with the purpose of investigating the phylogenetic position of B. taipingensis within the family Sciaenidae.
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