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Fig. 5

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ZDB-IMAGE-181023-3
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Figures for Yamaguchi et al., 2018
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Fig. 5

Mutations of PIH genes caused abnormal motilities of Kupffer’s vesicle cilia.

(A) Images of zebrafish embryo and Kupffer's vesicle. Red square in left-hand image indicates the position of the Kupffer's vesicle in a 12 hpf embryo. Right-hand image shows the dorsal view of the Kupffer's vesicle. (B) Diagram of zebrafish Kupffer's vesicle. Mono-cilia, which project from epithelial cells, have rotational motilities to produce left-ward fluid flow (red arrow) in the organ. (C) Typical kymographs of Kupffer’s vesicle cilia in WT and PIH gene mutants. Patterns of the kymographs were categorized into three classes: rotating (blue), irregular (green), and immotile (red). (D) Ratios of each motility class. Number of observed cilia: WT, 76; pih1d1-/-, 67; pih1d2-/-, 198; ktu-/-, 190; twister-/-, 53; and pih1d2-/-;ktu-/-, 48. (E) Rotational frequencies of Kupffer’s vesicle cilia. Bar graphs show mean ±SD. **: p-value<0.01 in Dunnett's test of each mutant against WT. (F) Heart looping of WT and mutant embryos at 30 hpf. Number of samples: WT, 247; pih1d1-/-, 288; pih1d2-/-, 275; ktu-/-, 285; twister-/-, 139; and pih1d2-/-;ktu-/-, 276. (G) Diagram represents normal heart looping of the 30 hpf embryo. V, ventricle; A, atrium.

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