GCL1 — Sorghum bicolor

Summary

SORBI_3001G205800 (SbGCL1) on sorghum chromosome 1 encodes a LanC-like protein, also annotated as GCL2, with GTPase inhibitor, channel regulator, abscisic acid (ABA) binding, and GTP binding activities. The gene is associated with the heterotrimeric G-protein complex and localizes to the plasma membrane, ER membrane, plasmodesmata, cytoplasm, and nucleus. It is linked to the maintenance of seed dormancy, regulation of stomatal closure and movement, ABA-mediated signaling, reactive oxygen species metabolism, and thylakoid membrane organization. Associations with agronomic traits include seed yield, germination rate, seedling growth, root length and thickness, stomatal resistance and closure time, disease tolerance, salt tolerance, and responses to high and low temperature stress, UV light, jasmonic acid, and nitrate. Related genes in other species connect it to ABA perception, seed dormancy, stomatal regulation, and sugar signaling.