Representative tracks of paths taken by PMECs and ICPs in each genotype where cells were tracked in this work. PMECs and ICPs are identified by their nuclear diameter (PMECs, <3.5 µm; ICPs, >5.5 µm). To aid comparison, tracks are arbitrarily labeled in red, blue, and green. (a and b) PMEC (a) and ICP (b) tracks in wild-type embryos. (c and d) PMEC (c) and ICP (d) tracks in LanB1 mutant embryos. (e and f) PMEC (e) and ICP (f) tracks in sar1 mutant embryos. (g and h) PMEC (g) and ICP (h) tracks in wb mutant embryos. (i and j) PMEC (i) and ICP (j) tracks in LanA mutant embryos. Scale bars, 20 µm.