ABI1 — Daucus carota subsp. sativus

Summary

DCAR_007635 (DcABI1) on carrot chromosome 2 encodes a protein with PP2C and PPM-type phosphatase domains, annotated with sucrose-phosphate synthase activity, phase separation nucleator activity, kinase regulator activity, and protein phosphatase binding. The gene is associated with abscisic acid (ABA)-mediated signaling, drought and salinity responses, root and vegetative structure development, and root hair development. It has been linked to traits including root system morphology, petal length, leaf elongation rate, biomass yield, seed viability, yield, submergence tolerance, and responses to water stress, light quality, and various nutrients. Additional associations include regulation of actin polymerization, nectar secretion, cell shape, and cell wall cellulose biosynthesis. Studies of related genes in other species link the family to ABA-mediated stomatal closure, glucose tolerance, heat tolerance, and root hair development.