ABI4 — Arabidopsis thaliana

Summary

AT2G40220 (ABI4) encodes a protein of the AP2/ERF domain family, with DNA-binding and transcription cis-regulatory region binding activity. In Arabidopsis, ABI4 is associated with plant height, seed production, triacylglycerol accumulation and biosynthesis, seed vigor, and hypocotyl elongation. It is linked to regulation of starch and NAD metabolism, downregulation of photosynthesis, hexokinase-dependent signaling, and lipid modification. The gene is associated with abscisic acid sensitivity and response, sugar signaling, drought tolerance, salt tolerance, water use efficiency, germination, lateral root development, root growth, embryogenesis, cadmium accumulation, and gibberellin biosynthesis and catabolism. Additional associations include endosperm storage protein content, seedling vigor, seed color, vivipary, drought recovery, specific leaf area, and responses to nematodes, aphids, and water stress.