In order to explore the taxonomic position of Sciocoris lateralis in the family Pentatomidae at the mitochondrial genome level, enrich the basic mitochondrial genome data of the family Pentatomidae, and provide a theoretical basis for the phylogenetic evolution of Pentatominae, in this study, the complete mitochondrial genome of S. lateralis was determined and analyzed for the first time through high-throughput sequencing(Genbank login Number: OP531920). 13 protein-coding tandem sequences(PCGs) from species of Pentatomidae were extracted and phylogenetic trees were constructed using the maximum likelihood method and Bayesian method. The results showed that the mitochondrial genome length of the insects was 15 445 bp, including 13 Protein-coding genes(PCGs), 2 rRNA genes(ribosomal RNAs), 22 tRNA genes(transfer RNAs), and a control region. The sequence of the mitochondrial genome was consistent with that of other species, and there was no gene rearrangement. The content of AT and GC was 74.26% and 25.74%, respectively. Among the 13 protein-coding genes, the start codons of cox1, nad1, and nad6 were TTG, while the start codons of the other 10 protein-coding genes were ATT, ATA, and ATG. Among the measured tRNA genes, trnS1 and trnV were missing DHU arms, while the other 20 tRNAs were able to fold to form a typical clover structure. The main pattern of gene mismatch was G-U mismatch. Based on the 13 PCGs, the phylogenetic tree of Pentatomidae showed that S. lateralis and Dolycoris baccarum were closely related and located in the subfamily of Pentatominae, supporting the monophyletic families of Eysarcorini and Strachiini, while Caystrini and Halyini were sister groups. This was consistent with the traditional morphological classification. Asopinae and Menida were sister groups, the phylogenetic relationship was inconsistent with the conclusion of traditional morphological taxonomy.
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