Figure 3
From: Routine mapping of Fusarium wilt resistance in BC1 populations of Arabidopsis thaliana
Crossover interference. (a) Among 63 markers in 234 FOM-infected C-T BC1 hybrids, the number of expected (open bar) or observed (filled bar) crossovers is shown at the indicated distance between crossovers. (b) Coincidence of crossovers is the observed crossover frequency in two marker intervals divided by expected crossover frequency. Observed and expected frequencies are equivalent at 1 (dashed line). Crossovers are separated by number of markers (estimated distance in cM): 1 (9), 2 (18), 3 (26), 4 (35), 5 (44), 6 (53) and 7 (62). The estimated distance between crossovers is the mean distance between adjacent markers (8.7 cM) times the number of markers.