ABI3 — Beta vulgaris subsp. vulgaris

Summary

BvABI3 (BVRB_7G167370) on sugar beet chromosome 7 encodes a LEC2-like protein with a B3 DNA-binding domain, annotated with phytochrome binding, Hsp90 binding, transcription coactivator activity, and ubiquitin-protein transferase activity. It is associated with positive regulation of seed maturation, cellular response to gibberellin stimulus, far red signaling, negative gravitropism, and regulation of triglyceride catabolic process. The gene is linked to traits including seedling vigor, vegetative vigor, seed set percent, photoperiod sensitivity, water stress response, iron content, and cadmium concentration. Phenotypic associations include seed development, ABA sensitivity, drought tolerance, salt stress tolerance, stomatal closure, disease resistance, and sugar signal transduction. Studies of related genes in other species link the family to seed longevity, oil accumulation, freezing tolerance, and photoperiodic growth.