Fig. 3

Comparison of the four main mitochondrial gene orders found in the 32 spider mitogenomes available in GenBank and MetAMiGA plus that retrieved from Parachtes and Harpactocrates (2). Genes placed on minus strand are denoted with the symbol “-”. Rearranged genes gene blocks are highlighted in different colors: transpositions (T) and inversions (I). Gene orders are as follows: 1) ancestral Pancrustacean (Boore et al. 1995), 2) Mesothelae and ancestral for Chelicerata and Arthropoda (Staton et al. 1997), 3) Araneomorphae, Synspermiata, Pholcidae and Hypochilidae, 4) Mygalomorphae, 5) Araneomorphae, Synspermiata, Dysderoidea, 6) Araneomorphae, Entelegynae, and 7) Araneomorphae, Entelegynae (Cybaeidae only). See Additional file 5: Table S1 for a detailed report of the mitogenome gene orders and accession numbers for the 32 mitogenomes