Effects of Nuclear Genomes on Anther Development in Cytoplasmic Male Sterile Chicories (Cichorium intybus L.): Morphological Analysis

Figure 3

Flower organ initiation (stage 1–5). (a) Inflorescence meristem dome (im) is established. (b) Stage 1: the flower primordia (fp) emerge from the inflorescence meristem. (c) Stage 2: the petals are initiated at the margin of the flower primordium apex (arrows). (d) Stage 3: the stamen primordia (st) are initiated under the petals (pe). (e) Stage 4: the stamens are stalked, sepals (se) are initiated, the carpel lobes (cp) emerge, and trichomes (tr) develop at the top of the petals. (f) Stage 5: the carpel lobes and stamens grow and attain the same height (arrow). Ovary cavity (oc) is formed and ovule is being initiated (). Bars 100 μm.

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