Figure 4.

Comparisons between the genetic and physical distances and the amount of meiotic DSBs for 12 intervals of chromosome III. Genetic distances are from Mortimer et al. (42), and physical distances are as in Fig. 2. The percent of DSBs was calculated as the sum of all DSBs in each interval. Domains with and without DSBs are represented on the physical map by ▪ and ░⃞, respectively. Differently shaded areas represent regions of chromosome III where frequencies of crossovers and DSBs are correlated at high (▪) or low (□) levels, or poorly correlated (░⃞).