CBF1 — Beta vulgaris subsp. vulgaris

Summary

BvCBF1 (BVRB_3G066590) on sugar beet chromosome Bvchr3_un.sca001 encodes a protein of the AP2/ERF domain family with DNA-binding and transcription coactivator activities, and is also annotated with histone acetylase activity. The gene is associated with responses to cold, drought, salinity, osmotic stress, and ABA signaling, as well as upregulation of chlorophyll breakdown and wax anabolism, anthocyanin metabolism, and positive regulation of leaf senescence. It has been linked to traits including freezing tolerance, dehydration tolerance, postharvest chilling injury, disease resistance, biomass production, and photosynthetic rate. Additional associations include root morphogenesis, embryo shoot apical meristem specification, and responses to cytokinin and oxidative stress. Studies of related CBF/DREB1 genes in other species connect the family to cold acclimation, frost tolerance, and abiotic stress resistance.