TCP transcription factors play redundant and crucial roles in regulating the identity of the apical gynoecium with CRC. A to D) Gynoecium from wild type (A), tcpDUO(B), crc(C), and tcpDUO crc(D). The flowers of wild type, tcpDUO, crc, and tcpDUO crc were emasculated at flower developmental stage 11. The apical gynoecium was then isolated and observed at 24 h after emasculation. Bars = 100 μm. E to J) SEM analysis of the apical gynoecium from wild type (E, H), tcpDUO (F, I), and tcpDUO crc (G, J). H to J) Close-up view of the apical gynoecium from (E to G). Many lamellar structures with indeterminate protuberances grew on the apical gynoecium of tcpDUO crc. Scale bars, 100 μm in (E to G), 10 μm in (H to J). K, L) Siliques and close-up views showing the apical gynoecium from wild type, tcpDUO, crc, and tcpDUO crc. Bars = 1 mm.