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. 2022 Dec 15;34(1):ar7. doi: 10.1091/mbc.E22-05-0176

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© 2023 Perez-Vale, Yow, et al. “ASCB®,” “The American Society for Cell Biology®,” and “Molecular Biology of the Cell®” are registered trademarks of The American Society for Cell Biology.

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FIGURE 10: — dzy RNAi alters junctional protein planar polarity in ways similar but not identical to loss of Cno. (A–D, J, K) Stage 7 embryos. (A) WT. Baz is planar polarized to DV borders (yellow vs. cyan arrows). (B) dzy RNAi. Baz planar polarization is enhanced. (C) WT. Pyd is mildly enhanced at DV borders (yellow vs. cyan arrows). (D) dzy RNAi. Pyd planar polarization is enhanced. (E–H) Planar polarity quantification. (I) dzy RNAi reduces Cno enrichment at TCJs. (J, K) dzy RNAi does not alter Cno planar polarity (J), unlike cno∆RA (K). (L–N) Stage 9. (L) WT. Dorsal ectodermal cells in mitotic domain 11 resume columnar shape (cyan bracket), while neuroectodermal cells in mitotic domain N round up to divide (red bracket). (M, N) dzy RNAi. Dorsal ectodermal cells are hyperconstricted (cyan brackets). Gaps (cyan arrows) and folds (red arrows) persist. (O) cnoM/Z null mutant for comparison. The numbers of cells analyzed for planar polarity are in Supplemental Table S1.