Complete mitochondrial genome of the lappet moth, Kunugia undans (Lepidoptera: Lasiocampidae): genomic comparisons among macroheteroceran superfamilies
AUTOR(ES)
Kim, Min Jee, Jeong, Jun Seong, Kim, Jong Seok, Jeong, Su Yeon, Kim, Iksoo
FONTE
Genet. Mol. Biol.
DATA DE PUBLICAÇÃO
31/07/2017
RESUMO
Abstract The mitochondrial genome (mitogenome) characteristics of the monotypic Lasiocampoidea are largely unknown, because only limited number of mitogenomes is available from this superfamily. In this study, we sequenced the complete mitogenome of the lappet moth, Kunugia undans (Lepidoptera: Lasiocampidae) and compared it to those of Lasiocampoidea and macroheteroceran superfamilies (59 species in six superfamilies). The 15,570-bp K. undans genome had one additional trnR that was located between trnA and trnN loci and this feature was unique in Macroheterocera, including Lasiocampoidea. Considering that the two trnR copies are located in tandem with proper secondary structures and identical anticodons, a gene duplication event might be responsible for the presence of the two tRNAs. Nearly all macroheteroceran species, excluding Lasiocampoidea, have a spacer sequence (1–34 bp) at the trnS2 and ND1 junction, but most lasiocampid species, including K. undans, have an overlap at the trnS2 and ND1 junction, which represents a different genomic feature in Lasiocampoidea. Nevertheless, a TTAGTAT motif, which is typically detected in Macroheterocera at the trnS2 and ND1 junction, was also detected in all Lasiocampoidea. In summary, the general mitogenome characteristics of Lasiocampoidea did not differ greatly from the remaining macroheteroceran superfamilies, but it did exhibit some unique features.
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