期刊
MITOCHONDRIAL DNA PART A
卷 27, 期 2, 页码 958-959出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/19401736.2014.926504
关键词
Coleoptera; mitochondrial genome; Tenebrionidae; Tribolium audax
资金
- Fundamental Research Funds for the Central Universities [GK201402029]
- Nature Science Foundation of Shaanxi [2013JM3005]
Flour beetles of the genus Tribolium are all pests of stored products and cause severe economic losses every year. The American black flour beetle Tribolium audax is one of the important pest species of flour beetle, and it is also an important quarantine insect. Here we sequenced and characterized the complete mitochondrial genome of T. audax, which was intercepted by Huangpu Custom in maize from America. The complete circular mitochondrial genome (mitogenome) of T. audax was 15,924bp in length, containing 37 typical coding genes and one non-coding AT-rich region. The mitogenome of T. audax exhibits a gene arrangement and content identical to the most common type in insects. All protein coding genes (PCGs) are start with a typical ATN initiation codon, except for the cox1, which use AAC as its start codon instead of ATN. Eleven genes use standard complete termination codon (nine TAA, two TAG), whereas the nad4 and nad5 genes end with single T. Except for trnS1 (AGN), all tRNA genes display typical secondary cloverleaf structures as those of other insects. The sizes of the large and small ribosomal RNA genes are 1288 and 780bp, respectively. The AT content of the AT-rich region is 81.36%. The 5bp conserved motif TACTA was found in the intergenic region between trnS2 (UCN) and nad1.
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