The mitogenome of the jumping bristletail Trigoniophthalmus alternatus (Insecta, Microcoryphia) and the phylogeny of insect early-divergent lineages

Chiara Leo; Francesco Nardi; Francesco Frati; Pietro Paolo Fanciulli; Claudio Cucini; Matteo Vitale; Claudia Brunetti; Antonio Carapelli

doi:10.1080/23802359.2019.1660592

The mitogenome of the jumping bristletail Trigoniophthalmus alternatus (Insecta, Microcoryphia) and the phylogeny of insect early-divergent lineages

Mitochondrial DNA B Resour. 2019 Sep 3;4(2):2855-2856. doi: 10.1080/23802359.2019.1660592.

Authors

Chiara Leo¹, Francesco Nardi¹, Francesco Frati¹, Pietro Paolo Fanciulli¹, Claudio Cucini¹, Matteo Vitale¹, Claudia Brunetti¹, Antonio Carapelli¹

Affiliation

¹ Department of Life Sciences, University of Siena, Siena, Italy.

Abstract

The complete mitochondrial genome of the machilid Trigoniophthalmus alternatus (Silvestri 1904) is herein described and applied to phylogenetic analyses, inclusive of the most early-divergent lineages of hexapods. Both gene content and order generally conform with the organization of the arthropods' mitochondrial genome. One gene translocation involving trnA is the autapomorphic character observed in this species. Another peculiar molecular feature is the long size of the A + T-rich region, due to the occurrence of repeat units. The phylogenetic analyses support the typical placement, along the hexapods' tree, of Ectognatha, Monocondylia and Dicondylia, with Diplura as the adelphotaxon of all true insects.

Keywords: Basal hexapods; Diplura; Ectognatha; Microcoryphia; Mitogenomics; Phylogeny; Zygentoma.