The complete mitochondrial genome of the red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae).

The complete mitochondrial genome (mitogenome) ofTribolium castaneum(Coleoptera: Tenebrionidae) was determined to be 15,883 bp (GenBank accession No. KM009121), which contains 22tRNAgenes, 13 protein-coding genes (PCGs), 2rRNAgenes and a major non-coding A + T-rich region. It has the typical gene organization and order of mitogenomes from ancestral insects. The nucleotide composition was also biased toward A + T nucleotides (71.72%) and the AT skew of this mitogenome was slightly positive. All of the 22tRNAgenes displayed a typical clover-leaf structure, with the exception oftrnS1(AGN). Thirteen PCGs were initiated by ATN codons, except for cytochrome c oxidase subunit 1 (cox1) gene which was initiated by AAT. Eight of the 13 PCGs harbor the incomplete termination codon by T or TA. The A + T-rich region of the mitogenome was 1237 bp in length and the A + T content was 82.30%. [ABSTRACT FROM AUTHOR]