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dpr3 mutants have defective cell divisions in the root pole of embryos. (A–E) Wild type embryos at 16-cell (A), globular (B), triangle (C), heart (D), and later heart (E) stages. (F–J) Embryos of dpr3 mutants at 16-cell (F), globular (G), triangle (H), heart (I), and later heart (J) stages. Bracketed area displays cell division defects in basal embryo region. Bars = 20 μm in (D, E, I, J) and 10 μm for the rest of the images.
