BLR — Oryza sativa Indica Group

Summary

BGIOSGA000492 (BLR, also known as OiBLR, qSH1, and RIL1) on chromosome 1 of Indica rice encodes a protein with a TALE homeobox domain and homeodomain-like superfamily domain, and is annotated with DNA-binding transcription factor activity, transcription regulator activity, and protein heterodimerization activity. The gene is directly associated with grain shattering, seed development, and awn formation in rice. It is linked to processes including specification of carpel identity, floral whorl morphogenesis, glycine metabolism, mucilage pectin metabolism, cellular response to ethylene, and negative regulation of auxin-mediated signaling. Associations extend to traits such as panicle number, pedicel length, shoot growth angle, seed longevity, leaf margin serration, and gibberellic acid content. The protein localizes to the nucleolus, microtubule cytoskeleton, chloroplast thylakoid, and other cellular compartments. Studies of related genes in other species connect the family to meristem maintenance, phyllotaxy, and floral organ identity.