| Summary: | Clarifying phylogenetic position and reconstructing robust phylogeny of groups using various evidences are an eternal theme for taxonomy and systematics. In this study, the complete mitogenomes of <i>Longzhouacris mirabilis</i>, <i>Ranacris albicornis</i>, and <i>Conophyma zhaosuensis</i> were sequenced using next-generation sequencing (NGS), and the characteristics of the mitogenomes are presented briefly. The mitogenomes of the three species are all circular molecules with total lengths of 16,164 bp, 15,720 bp, and 16,190 bp, respectively. The gene structures and orders, as well as the characteristics of the mitogenomes, are similar to those of other published mitogenomes in Caelifera. The phylogeny of the main subfamilies of Acrididae with prosternal process was reconstructed using a selected dataset of mitogenome sequences under maximum likelihood (ML) and Bayesian inference (BI) frameworks. The results showed that the genus <i>Emeiacris</i> consistently fell into the subfamily Melanoplinae rather than Oxyinae, and the genus <i>Choroedocus</i> had the closest relationship with <i>Shirackiacris</i> of the subfamily Eyprepocnemidinae in both phylogenetic trees deduced from mitogenome protein coding genes (PCGs). This finding is entirely consistent with the morphological characters, which indicate that <i>Emeiacris</i> belongs to Melanoplinae and <i>Choroedocus</i> belongs to Eyprepocnemidinae. In addition, the genera <i>Conophymacris</i> and <i>Xiangelilacris</i>, as well as <i>Ranacris</i> and <i>Menglacris</i>, are two pairs of the closest relatives, but their phylogenetic positions need further study to clarify.
|
|---|