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OsRAD1 is required for fertility in rice. A, Gene structure and mutation sites of OsRAD1. Exons are shown as black boxes. Untranslated regions are shown in white. B and C, Comparison of the wild-type (B) and Osrad1 (C) plant. D, Comparison of the wild-type (left) and Osrad1 (right) panicle. E and F, I2-KI staining of the wild-type (E) and Osrad1 pollen grains (F). Bars = 50 µm.
