Complete mitochondrial genome of Takydromus sexlineatus (Squamata, Lacertidae).

ABSTRACT

The complete sequence mitochondrial genome of Takydromus sexlineatus was determined using long PCR and conserved primers walking approaches. The genome was 18,943 bp in length and contained 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes and 1 control region (CR). The gene composition and order of T. sexlineatus were similar to most other squamate reptiles. All protein-coding genes begin with ATG as initiation codon except COI using GTG. Seven genes (ATP8. ND4L. ND5. Cytb. ND1. COI and ND6) ended with TAA, TAG, AGGA and AGA stop codon, the remaining 6 genes had incomplete stop codons T/TA. The overall base composition of the genome in descending order was 31.48% A, 24.67% C, 30.79% T and 13.05% G, with a slight A + T bias of 62.27%. CR is located between the tRNA-Pro and tRNA-Phe genes and is 3562 bp in length, some tandem repeat sequences, conserved elements (CSB1-3) and termination associated sequences (TAS1-3) were found in the control region.