Fig. 1

Phylogenetic relationships between species and genomic CNE distribution. a Phylogenetic tree showing the relationships and approximate divergence times between the insects used in the analysis. The number of conserved CNEs at different branching points is plotted on the figure. Phylogenetic relationships and divergence times from: inter-order [8]; Hymenoptera [16]; Lepidoptera [57]; Diptera [58]; Coleoptera [8]. b Nasonia vitripennis genome diagram showing the locations of the sequences analyzed (red, outer circle, 3.66 % of genome) in contrast with the sequences identified as conserved (black, inner circle, 0.0064 % of genome). Lower CNE density on chromosome U reflects lower gene density on these unplaced scaffolds