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Int J Biol Sci 2009; 5(4):351-365. doi:10.7150/ijbs.5.351

Research Paper

Characterization of the complete mitochondrial genome of the giant silkworm moth, Eriogyna pyretorum (Lepidoptera: Saturniidae)

Shao-Tong Jiang1,#, Gui-Yun Hong1,2,#, Miao Yu1, Na Li1, Ying Yang1,2, Yan-Qun Liu3, Zhao-Jun Wei1 ✉

1. Department of Biotechnology, Hefei University of Technology, Hefei 230009, People's Republic of China
2. Department of Environmental engineering, Anhui University of Architecture, Hefei 230601, People's Republic of China
3. Department of Sericulture, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110161, People's Republic of China
# Co-first authors

Abstract

The complete mitochondrial genome (mitogenome) of Eriogyna pyretorum (Lepidoptera: Saturniidae) was determined as being composed of 15,327 base pairs (bp), including 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and a control region. The arrangement of the PCGs is the same as that found in the other sequenced lepidopteran. The AT skewness for the E. pyretorum mitogenome is slightly negative (-0.031), indicating the occurrence of more Ts than As. The nucleotide composition of the E. pyretorum mitogenome is also biased toward A + T nucleotides (80.82%). All PCGs are initiated by ATN codons, except for cytochrome c oxidase subunit 1 and 2 (cox1 and cox2). Two of the 13 PCGs harbor the incomplete termination codon by T. All tRNA genes have a typical clover-leaf structure of mitochondrial tRNA, with the exception of trnS1(AGN) and trnS2(UCN). Phylogenetic analysis among the available lepidopteran species supports the current morphology-based hypothesis that Bombycoidea, Geometroidea, Notodontidea, Papilionoidea and Pyraloidea are monophyletic. As has been previously suggested, Bombycidae (Bombyx mori and Bombyx mandarina), Sphingoidae (Manduca sexta) and Saturniidae (Antheraea pernyi, Antheraea yamamai, E. pyretorum and Caligula boisduvalii) formed a group.

Keywords: Eriogyna pyretorum, mitochondrial genome, Lepidoptera Saturniidae

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How to cite this article:
Jiang ST, Hong GY, Yu M, Li N, Yang Y, Liu YQ, Wei ZJ. Characterization of the complete mitochondrial genome of the giant silkworm moth, Eriogyna pyretorum (Lepidoptera: Saturniidae). Int J Biol Sci 2009; 5(4):351-365. doi:10.7150/ijbs.5.351. Available from http://www.ijbs.com/v05p0351.htm