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Yun-liangWang,Yan-hong Chen,Chen-chen Xia,Xue-qin Xia,Rui-song Tao,Jia-sheng Hao 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.2
The complete mitochondrial genome of Parnassius epaphus (Lepidoptera: Papilionidae: Parnassiinae) was 15, 458 bp in length, harboring typical 13 protein-coding genes (PCGs), 22 transferRNA genes (tRNAs), two ribosomal RNA genes (rRNAs) and a non-coding control region (AT-rich region), with an 81.4% A + T content. The gene orientation and arrangement are the same as those of other sequenced lepidopterans. All PCGs startwith the typical ATN codon, with the exception of the COI gene that utilizes CGA as its initial codon. In addition, all PCGs terminate at the common stop codon TAA or TAG, except for the COII genewhich uses single T as its stop codon. All tRNAs possess the typical clover-leaf structure, except for tRNAser(AGN), inwhich the dihydrouridine (DHU) arm forms a simple loop. The predicted lrRNA and srRNA secondary structures harbor six domainswith 49 helices and three domains with 33 helices, respectively. In total, P. epaphus mitogenome harbors 12 intergenic spacers. The 122 bp longest one located between tRNAser(AGN) and tRNAGlu is characterized by the multiple duplications of TTTTTCTTTTT and TTTATCTATTTCTTTmotifs, and this sequence is the largest intergenic spacer among all butterflies detected to date. The 496 bp AT-rich region is located between srRNA and tRNAMet, containing some conserved structural characteristic of lepidopterans, such as the motif ATAGA followed by an 18-bp poly-T stretch, a microsatellite-like (AT)9 element preceded by the ATTTA motif. Moreover, two tRNA-like sequences (tRNATrp-like, tRNALeu(UUR)-like) and two sequence stretches potential to form stem-loop structures are also found in the AT-rich region.
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Yan-hong Chen,Dun-yuan Huang,Yun-liangWang,Chao-dong Zhu,Jia-sheng Hao 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.4
The Apollo butterfly, Parnassius apollo is a representative species of the butterfly subfamily Parnassiinae. Thischarming species is one of the most endangered butterfly species in the world. In this study, we sequenced itscomplete mitochondrial genome (mitogenome), with the aim of accumulating genetic information for furtherstudies of population genetics and mitogenome evolution in the Papilionidae. The 15,404-bp long mitogenomeharbors a typical set of 37 genes and is the largest butterfly mitogenome determined, except for Papiliomaraho (16,094 bp). Like many other sequenced lepidopteran species, one tRNATrp-like and onetRNALeu(UUR)-like sequences were detected in the AT-rich region. A total of 164 bp of non-codingsequences are dispersed in 14 regions throughout the genome. The longest intergenic spacer (68 bp) islocated between tRNASer(AGN) and tRNAGlu, and is the largest spacer at this location among Papilionidaespecies. This spacer may have resulted from an 8-fold repetition of a TTTCTTCT motif or a 4-fold repetitionof a CTTTATTT motif.
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