A transcriptional atlas identifies key regulators and networks for the development of spike tissues in barley

• DOI: 10.1016/j.celrep.2023.113441
• Publication Date: 2023-11-15T20:50:33Z
• Authors: Liping Shen; Yangyang Liu; Lili Zhang; Zhiwen Sun; Ziying Wang; Yuannian Jiao; Kuocheng Shen; Zifeng Guo
• Keywords: Primordium

Grain number and size determine grain yield in crops are closely associated with spikelet fertility filling barley (Hordeum vulgare). Abortion of primordia within individual spikes causes a 30%–50% loss the potential grains during development from awn primordium stage to tipping stage, after that is primary factor regulating size. To identify transcriptional signatures spike development, we use six-rowed cultivar (Morex) develop spatiotemporal transcriptome atlas containing 255 samples covering 17 stages 5 positions along spike. We several fundamental regulatory networks, addition key regulators morphology. Specifically, show HvGELP96, encoding GDSL domain-containing protein, as regulator number. Our offers powerful resource answer questions degeneration barley.