AIG1 — Beta vulgaris subsp. vulgaris

Summary

BvAIG1 (BVRB_1G019210) on sugar beet chromosome Bvchr1_un.sca002 encodes a protein with polyketide cyclase/dehydrase and START-like domains, annotated with abscisic acid (ABA) binding, protein phosphatase inhibitor activity, and signaling receptor activity. The gene is associated with regulation of ABA, auxin, salicylic acid, jasmonic acid, and gibberellic acid signaling pathways, as well as stomatal opening, seed dormancy release, and germination. It is linked to traits including water use efficiency, transpiration rate, stomatal resistance, seed yield, vegetative vigor, shoot growth angle, lateral root length, and responses to osmotic stress, nitrate, aphids, and powdery mildew. Localization evidence connects the product to the nucleus, cytosol, plasmalemma, mitochondria, and Golgi. Related genes in other species are linked to ABA sensitivity, drought resistance, pathogen defense, and seed oil content.