FC1 — Oryza sativa Indica Group

Summary

BGIOSGA013417 (OiFC1, also known as TB1 or FC1) on chromosome 3 of Indica rice encodes a transcription factor containing a TCP domain and a CYC/TB1_R domain, with sequence-specific DNA binding and transcription factor activity. The gene is associated with tillering, shoot development, auxin transport, strigolactone-mediated axillary bud dormancy, and suppression of tillering. It has been linked to traits including grain yield and panicle number. The protein localises to the nucleus and is associated with flower development, specification of symmetry, and regulation of secondary shoot formation. Studies of related genes in other species link the family to tiller number, inflorescence branching, grain number, grain size, plant height, and stem diameter.