The complete mitochondrial genome of Trifida elongate and comparative analysis of 43 leafhoppers.

In this study, the mitochondrial genome of Trifida elongate was sequenced, and comparative analysis of T. elongate and other 43 leafhoppers was performed based on the mitochondrial genome. The mitochondrial genome sequence length of T. elongate was 14,924 bp. It comprised 13 protein-coding genes, 2 ribosomal RNA (rRNA) genes, 22 transport RNA (tRNA) genes, and 1 non-coding control region. The control region is located between the rrnS and trnI genes, is characterized by two tandem repeats and three simple sequence repeats. Phylogenetic analysis showed that T. elongate is closely related with Bolanusoides shaanxiensis and Limassolla lingchuanensis (bootstrap value = 92% and posterior probabilities = 1). Analysis of synonymous and non-synonymous nucleotide substitutions showed that Ka/Ks value of the 13 protein-coding genes of 8 subfamily leafhoppers were less than 1 ranging from 0.0315 to 0.9928. atp8 had the highest Ka/Ks value whereas cox1 had the lowest Ka/Ks value. This study provides information on the structure and sequence characteristics of the mitochondrial genome of T. elongata. Typhlocybinae is clustered with (Cicadellinae+(Idiocerinae+(Mileewinae+(Nirvaninae+(Evacanthinae+Ledrinae))))).