Complete mitochondrial genome of the lappet moth, <i>Kunugia undans</i> (Lepidoptera: Lasiocampidae): genomic comparisons among macroheteroceran superfamilies

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P><P>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, <I>Kunugia undans</I> (Lepidoptera: Lasiocampidae) and compared it to those of Lasiocampoidea and macroheteroceran superfamilies (59 species in six superfamilies). The 15,570-bp <I>K. undans</I> genome had one additional <I>trnR</I> that was located between <I>trnA</I> and <I>trnN</I> loci and this feature was unique in Macroheterocera, including Lasiocampoidea. Considering that the two <I>trnR</I> 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 <I>trnS</I><SUB><I>2</I></SUB> and <I>ND1</I> junction, but most lasiocampid species, including <I>K. undans,</I> have an overlap at the <I>trnS</I><SUB><I>2</I></SUB> and <I>ND1</I> junction, which represents a different genomic feature in Lasiocampoidea. Nevertheless, a TTAGTAT motif, which is typically detected in Macroheterocera at the <I>trnS</I><SUB><I>2</I></SUB> and <I>ND1</I> 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.</P>