Fig. 4

Distribution of MLH1 foci along individual SCs in pachytene spermatocytes of the Common Swift (a) and Eurasian Hobby (b). On the x-axis: the relative position of MLH1 foci at the six largest macroSCs in relation to the centromere (black triangle). The width of the interval is 1 μm. On the y-axis: the proportion of MLH1 focus number in each interval. Colors indicate bivalents with 1–9 MLH1 foci per bivalent. The scale shows the color codes