Phylogenetic and taxonomic study of the complete mitochondrial genome of Spodoptera frugiperda

Abstract

Spodoptera frugiperda is a polifagous insect of major economic impact in the world. In this study, we assembled and annotated the complete mitochondrial genome of S. frugiperda. The mitochondrial genome length is 15,353 bp, containing 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNA), 2 ribosome RNA genes (rRNA), and 1 D-loop control regions. The overall nucleotide composition is: A of 40.7%, T of 40.3%, C of 11.3% and G of 7.7%, with a total GC content of the mitochondrial genome 19.0% and AT of 81.0%. Phylogenetic and taxonomic analysis based on the amino acid sequences of 13 PCGs from 21 species confirmed the position of S. frugiperda closely related to S. litura and S. exigua. The complete mitochondrial genome of S. frugiperda study is able to provide a reference for the phylogenetic and taxonomic relationships, and also more data for further study of the Nolidae family in China.