Inflorescence architecture is a key determinant of yield potential in many crops and is patterned by the organization and developmental fate of axillary meristems. In cereals, flowers and grain are borne from spikelets, which differentiate in the final iteration of axillary meristem branching. In spp, inflorescence branches terminate in either a spikelet or a sterile bristle, and these structures appear to be paired.
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