View source for File:In situ detection of YAB3 and WOX3 transcripts.jpg

A to G, Sections hybridized with YAB3 antisense (A–F) or sense (G)
probes. H to N, Sections hybridized with WOX3 antisense (H–M) or sense (N) probes. A and H, Longitudinal sections of SAM. B
and I, Transverse sections of SAM; insets, enlarged views of the central areas of the apexes. C and J, Developing panicle
longitudinal sections. D to F and K to M, Longitudinal sections of florets at different development stages. The midrib regions of
leaf primordia (A and H) are designated by plastochron (P) numbers, such that the leaf incipient primordium is labeled P0, the
next older leaf is labeled P1, and so on. FAM, Floral apical meristem; st, stamen; ca, carpel; l, lemma; p, palea. Bar 5 100 mm.