Figure 6.
Distribution of MLH1 foci along the SC1 in the pachytene cells of the linnet (A), bullfinch (B), siskin (C), and goldfinch (D) The X-axis reflects the position of the foci in the SC relative to the centromere, indicated by a single circle (the regional centromere) or multiple circles (metapolycentromeres). Each interval represents 1 µm of the average SC length. The Y-axis reflects the proportion of MLH1 foci in each interval. The colors represent the proportion of bivalents with 1 to 7 MLH1 foci per chromosome.