The First Complete Mitochondrial Genome of the Genus Pachycondyla (Formicidae, Ponerinae) and Insights into the Phylogeny of Ants.
Genes(2023)
Abstract
Ants are the standout group among eusocial insects in terms of their exceptional species richness and ecological dominance. The phylogenetic relationships among the group remain elusive. Mitochondrial genome sequences, as a kind of molecular marker, have been widely utilized in the phylogenetic analysis of insects. However, the number of ant mitogenomes published is still very limited. In this study, we utilized next-generation sequencing to determine the complete mitogenome of (Formicidae, Ponerinae). This is the first mitogenome from the genus . Two gene rearrangements were identified in the mitogenome, the transposition of and and the transposition of and . The secondary structures of tRNAs were predicted. The tRNA genes and lacked the dihydrouridine (DHU) arm, and the lacked the TΨC (T) arm. Phylogenetic analyses of the mitochondrial protein-coding genes under maximum likelihood (ML) and Bayesian inference (BI) criteria resulted in conflicting hypotheses. BI analysis using amino acid data with the site-heterogeneous mixture model produced a tree topology congruent with previous studies. The Formicidae was subdivided into two main clades, namely the "poneroid" clade and the "formicoid" clade. A sister group relationship between Myrmicinae and Formicinae was recovered within the "formicoid" clade.
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Key words
Pachycondyla annamita,gene rearrangement,mitochondrial genome,phylogeny,poneroid ant
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