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Figure 6.

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ZDB-IMAGE-201012-76
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Figures for Inaba et al., 2020
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Figure Caption

Figure 6. The periplakin head domain is required for initiation of microridge morphogenesis and the tail domain is required for microridge elongation.

(A, C) Lifeact-mRuby-expressing cells mosaically expressing Ppl-GFP and Evpl-tdTomato variants in periderm cells, as indicated. Neighboring cells lacking GFP serve as controls. (A) Periderm cells of evpl−/−;ppl−/− mutant animals co-expressing full-length tagged Evpl and Ppl (left), tagged Evpl and Ppl rod-tail fusions (middle), or tagged Evpl and Ppl head-rod fusions (right). Inset schematics show the domains expressed. H: Head; R: Rod; T: Tail. (B) Scatter plot of average microridge length versus mean fluorescence intensity in evpl−/−;ppl−/− mutant periderm cells expressing full-length Evpl and Ppl (red line), Evpl and Ppl head-rod fusions (green line), or Evpl and Ppl rod-tail fusions (blue line). Shading indicates 95% confidence interval. Slopes = 0.0115, 0.0049, and 0.0015; R2 = 0.56, 0.44, and 0.13 for red, green, and blue lines, respectively. n = 39–55 cells from 3 to 4 fish per category. (C) Periderm cells of ppl−/− mutant animals co-expressing tagged Ppl full length (left), Ppl rod-tail (middle), or Ppl head-rod fusions (right). Insets illustrate the Ppl domains expressed. Green is Ppl and magenta is endogenous Evpl in diagrams. H: Head; R: Rod; T: Tail. (D) Scatter plot of average microridge length versus mean fluorescence intensity in ppl−/− periderm cells expressing full-length Ppl (red line), the Ppl head-rod (green line), or the Ppl rod-tail (blue line). These full-length data are also used in Figure 7C–D. Shading indicates 95% confidence interval. Slopes = 0.0118, 0.0064, and 0.001; R2 = 0.74, 0.67, and 0.15 of red, green, and blue lines, respectively. n = 37–57 cells from 3 to 5 fish per category. Scale bar: 10 µm.

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