ABI1 — Triticum aestivum

Summary

TRAESCS1D02G449700 (TaABI1) on wheat chromosome 1D encodes a protein with PP2C phosphatase and PPM-type domains, annotated with sucrose-phosphate synthase activity, kinase regulator activity, and protein phosphatase regulator activity. This gene is associated with pre-harvest sprouting, water stress response, root system morphology, leaf elongation rate, biomass yield, seed yield, seed viability, and wheat powdery mildew disease response. It is linked to regulation of actin polymerization, cytoskeleton organization, cell wall cellulose biosynthesis, small GTPase-mediated signal transduction, glucose-mediated signalling, and negative regulation of the hypersensitive response. Localization evidence connects it to the Arp2/3 protein complex, SCAR complex, SWI-SNF complex, and protein serine/threonine phosphatase complex. Studies of related genes in other species link the family to drought resistance, root architecture, and root hair elongation.