Phylogenetic Analysis of Two New Mitochondrial Genomes of and from the Karst Region of Southwest China.

Leafhoppers have been identified as a serious threat to different plants. To explore the characteristics of mitogenomes and reveal the phylogenetic positions of two species in the Typhlocybinae, complete mitogenomes of and were sequenced and annotated for the first time with lengths of 15,402 bp and 15,383 bp, respectively. The two mitogenomes contained 13 PCGs, 22 tRNA genes and 2 rRNA genes. The genome content, gene order, nucleotide composition, codon usage and amino acid composition are similar to those of other typical mitogenomes of Typhlocybinae. All 13 PCGs started with ATN codons, except for (TTA) and (TTG). All tRNAs were folded into a typical cloverleaf secondary structure, except for tRNA and tRNA. Moreover, phylogenetic trees were constructed and analyzed based on all the PCGs from 42 mitogenomes using maximum likelihood (ML) and Bayesian inference (BI) methods. The results supported that eleven subfamilies are all monophyletic groups, and are members of Erythroneurini, but and the genus have a very close relationship with ((((+ ) + ) + ) + ), and is closely related to the genus (( + ) + ). These results provide valuable information for future study of evolutionary relationships in Typhlocybinae.