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. 2018 Oct 19;9(10):510. doi: 10.3390/genes9100510

Figure 1.

Figure 1

Morphology of the spikes of a normal head (nh) and the spikes of a branching head (bh). (A) Spike morphology of GAN-A631–left side (bh) and GAN-A1582–right side (nh). (B) The early double ridge (EDR) stage of bh. (C) The late double ridge (LDR) stage of bh. (D) The branch meristem (BM) development stage of bh and the red asterisk indicates the region of secondary spikelet meristem (SM) emergence. Compared with the glume primordia (GP) stage of nh, slight bulging can be observed at the location of the red asterisk in bh. (E) The SM initiation (SMI) stage of bh. (F) The EDR stage of nh. (G) The LDR stage of nh. (H) The GP stage of nh. (I) The lemma primordia (LP) stage of nh. Abbreviations: bm-l, branched-like meristem; b, bract; b-l, bract-like meristem; sm, spikelet meristem; gl, glume; l, lemma. Scale bars: (B–G), 100 µm; (H,I), 200 µm.