The number of intra- and inter-reuses between seven branches of the tree in Figure 4, each of length 100, for simulated genomes with n fragile regions (n = 500, 900, 1, 300). The diagonal elements represent intra-reuses while the elements above diagonal represent inter-reuses. In each cell with numbers x : y, x represents the observed reuse while y represents the corresponding lower bound. The cells of the table are colored red (for adjacent branches like M+ and R+), green (for branches that are separated by a single branch like M+ and D+ separated by MR+), and yellow (for branches that are separated by two branches like M+ and H+ separated by MR+ and QH+).
Alekseyev and Pevzner Genome Biology 2010 11:R117 doi:10.1186/gb-2010-11-11-r117