Are There Rearrangement Hotspots in the Human Genome?
Figure 7
Breakpoint Re-Use Rate as a Function of σ, the Maximal Size of Deleted Synteny Blocks, and Its Distribution at σ = 0.00033
(A) Breakpoint re-use rate as a function of the maximal size of deleted synteny blocks (as the proportion of the whole genome length). Deletion of blocks shorter than 1 Mb as in [4] (assuming that the human genome is ≈3,000 Mb long, σ = 1 Mb/3,000 Mb ≈ 0.00033) results in low breakpoint re-use (≈1.2). The plot shows simulations for a genome with 25,000 genes and 320 reversals (in this case, σ = 0.00033 corresponds to deleting all synteny blocks shorter than nine genes).
(B) The distribution of breakpoint re-use at σ = 0.00033 with a mean of 1.23 and a standard deviation of 0.02 (100,000 simulations). The maximum breakpoint re-use rate in this simulation was 1.33, and it appeared only once.