Fig. 3. Planar polarized enrichment of Vangl2 is controlled by cell non-autonomous PCP signalling.

a A schematic illustrating transplantation of membrane-RFP-labelled vangl2^sfGFP donor cells into vangl2^tk50f loss-of-function host embryos, at sphere stage. b, c Distribution of the brightest sfGFP-Vangl2 and membrane-RFP spots along anterior-posterior (g) and apical-basal (h) axes of vangl2^sfGFP neuroepithelial cells transplanted into a vangl2^tk50f mutant host, quantified at two consecutive stages of neural tube morphogenesis. Data from multiple transplanted vangl2^sfGFP cells was pooled (10 somites, n = 7; 12-13 somites, n = 9). Statistical analysis was performed using a two-tailed Mann-Whitney test. Thicker line shows median, and thinner lines first and third quartile. Source data are provided as a Source Data file. d Representative confocal images of membrane-RFP and sfGFP-Vangl2 localization in vangl2^sfGFP neuroepithelial cells within vangl2^tk50f mutant hosts, at 10-somite and 13-somite stages of development, as quantified in b, c. Maximum intensity projections are shown. Arrows point at Vangl2 enrichment on cell protrusions. Anterior is to the left in all images.