ABI1 — Sorghum bicolor

Summary

SORBI_3003G198200 (SbABI1) on sorghum chromosome 3 encodes a protein with PP2C and PPM-type phosphatase domains and annotated molecular functions including sucrose-phosphate synthase activity, kinase regulator activity, and protein phosphatase inhibitor activity. The gene is associated with biological processes such as regulation of actin polymerization, cell wall cellulose biosynthesis, small GTPase-mediated signal transduction, and pre-harvest sprouting. It is linked to traits including sucrose phosphate synthase activity, sprouting tolerance, seed yield, biomass yield, leaf elongation rate, water stress response, and aluminum response. Additional associations include stomatal movement, photosynthesis, carbohydrate metabolism, sucrose synthesis, and responses to hypoxia, ethylene biosynthesis, and Verticillium wilt. Related genes in other species connect the family to drought resistance, root architecture, and ABA signaling, as well as heat tolerance, glucose tolerance, and abscisic acid binding.