Contarinia maculipennis, a worldwide invasive flower and vegetable pest possessing the particularities of rearrangement and tRNA secondary structures of mitogenome: A potential key to revealing its extensive host radiation

In this study, we first obtained the complete mitochondrial genome of Contarinia maculipennis, an important worldwide invasive flower and vegetable pest, from Hengzhou, Nanning, Guangxi, China, then annotated its mitogenome, and analyzed its tRNA secondary structures, which is the first report of comprehensive set of the tRNA secondary structures provided in Family Cecidomyiidae. And we also annotated Dasineura ulmaria's mitogenome sequence from NCBI too. By comparing the rearrangement features of the mitogenome of C. maculipennis with all the other identified and sequenced gall midge species as well as the outgroups, we identified the particularities of rearrangement features and tRNA-Val secondary structure of C. maculipennis. By further sorting out and analyzing the tRNA-Val secondary structures of all the identified gall midge species as well as the outgroups, combined with the classification, phylogenetic analysis and rearrangement characteristics, we found some patterns in Cecidomyiidi as well as Cecidomyiinae, and especially the related powerfully verified particularities of C. maculipennis, which may be a potential key to reveal its extensive host radiation.