Fig. 9

Distribution of block-wise distances of consecutive alignment blocks in the original genomes. Data are shown separated for inverted (−) and preserved (+) orientation of consecutive blocks (light gray). As expected, the number of inverted blocks increases with the difficulty of the input alignment. In particular, there is a substantial number of local inversions in the insect data set \(\mathbf {F}\). Both the inverted (−) and preserved (+) bin are subdivided further into a bin of adjacent blocks (A), blocks with a distance of 1–5 blocks (B), and more distantly placed blocks (C), in the supergenome