Table 1.
Information of collembolan species used in this study.
Fig 1.
Comparison of linear arrangements of genes on mitochondrial genomes of collembolan species in this study.
A. Pancrustacea (putative ancestral) model in most species. B. Podura aquatica. C. Onychiuridae. D. Lipothrix lubbocki. E. Sminthurus viridis. F. Sminthurinus signatus. The transcriptional direction of mitochondrial genes is from left to right, the asterisk (*) below the genes indicates the opposite direction, the question marks indicates the unknown genes, the rearrangements are marked in red, the inverted triangle indicates the deletion of gene.
Fig 2.
Maximum likelihood phylogenetic tree inferred from partitioned nucleotide sequences of 15 genes, with third codon position excluded (15fna_13PCGs (site1+2)_2rrn (2partition)).
Bootstrap support values are shown in the nodes.
Fig 3.
Maximum likelihood phylogenetic tree inferred from partitioned nucleotide sequences of 13 PCGs under codon 5 model (13fna_13parition_CODON5).
Bootstrap support values are shown in the nodes. Each coloured line linked a same taxon in current taxonomic system but separated in different branches.
Fig 4.
Maximum likelihood phylogenetic tree inferred from amino acid sequences of 13 PCGs under GHOST_mtART model (13faa_GHOST_mtART).
Bootstrap support values are shown in the nodes. Each coloured line linked a same taxon in current taxonomic system separated in different branches.
Table 2.
Support values for the major clades recovered by different datasets and analytical approaches. “N” means this was not supported.
Table 3.
Results of tree topology tests of the analyses 13fna_13parition_CODON5 and 13faa_GHOST_mtART.
Seven hypothetical topologies were (A) best tree without any constrains; (B) Tomoceridae + Oncopoduridae; (C) Neelipleona + Symphypleona s. s.; (D) Tomoceroidea + (Entomobryoidea + Isotomidae); (E) Tomoceroidea + Poduromorpha; (F) Tullbergiidae + Onychiuridae; (G) Symphypleona s. s. + Entomobryomorpha.