| Categories genes  | Tags panicle  spikelet  development  seed  meristem  spikelet meristem  inflorescence  architecture  inflorescence architecture  nucleus  panicle architecture  axillary meristem 
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  • Key message
    • Genetic analysis revealed that OsRA2 may control panicle architecture using the same pathway as that of the axillary meristem gene LAX1 (LAX PANICLE1)
    • Moreover, OsRA2 acted downstream of RCN2 in regulating pedicel and branch lengths, but upstream of RCN2 for control of the number of secondary branches, indicating that branch number and length development in the panicle were respectively regulated using parallel pathway
    • The OsRA2 protein localized to the nucleus and showed transcriptional activation in yeast; in accordance with its function in pedicel development, OsRA2 mRNA was enriched in the anlagen of axillary meristems, such as primary and secondary branch meristems and the spikelet meristems of young panicles
    • In addition, OsRA2 influenced seed morphology
    • This indicates a conserved role of OsRA2 for shaping the initial steps of inflorescence architecture
  • Connection

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