The ER undergoes developmentally regulated structural remodeling during meiosis. (A) Quantification of the time of anaphase I and anaphase II relative to ER cabling. (B) Quantification of cells within the indicated categories as assessed over the course of 16-h time-lapse videos. At least 100 cells were scored for each of the indicated genotypes. Differences between all groups are statistically significant (P < 0.0001 by χ² test).