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In situ hybridization of the ZmIPT1 gene transcript on the pedicel region of the central longitudinal sections of developing caryopsis at 7 and 14 DAP: (A) 7 DAP; (B) 14 DAP; (C) control reaction with the antisense probe. The visible area is represented by the rectangles in the schematic caryopsis drawings. Abbreviations: BETL, basal endosperm transfer layer; en, endosperm; p, pedicel; P-C, placento-chalaza; v, vascular tissue.
