Figure 2. Polarity defects in pam-1 mutants are not caused by increased centrosome-cortical distance.
A) Centrosomes in both WT and pam-1 mutant embryos (arrowhead; γ-tub::GFP) appear near the cortex at the same relative distance and in most cases cue symmetry breaking (*). Posterior is to the right in all images. B) While initial centrosome distance correlates with increased time to symmetry breaking in WT embryos (n=23), this trend is not significant in pam-1 mutant embryos (n=36). C) When distance from the cortex is plotted against the extent of PAR-1 localization at NEBD, we see no correlation (WT n=23, pam-1 n=21). Each dot represents one embryo.