BBM — Sorghum bicolor

Summary

SORBI_3004G214300 (SbBBM) encodes a transcription factor with DNA-binding and protein-binding activities, belonging to the AP2/ERF domain family. In sorghum, this gene is associated with the regulation of seed development, shoot apical meristem identity, leaf phyllotactic patterning, floral organ abscission, and secondary cell wall biogenesis. It is also linked to callus formation, adventitious root development, and stem cell population maintenance. Associations with grain yield, plant height, lignin content, and disease tolerance have been noted. The encoded protein localizes to the nucleus, cytoplasm, and transcription regulator complexes. Studies of related genes in other species connect the family to root meristem maintenance, somatic embryogenesis, regeneration capacity, and responses to abscisic acid and drought.