HAG1 — Brassica oleracea var. botrytis

Summary

BoHAG1 (also known as BoMYB28, PMG1) on cauliflower chromosome 7 encodes a plant Myb transcription factor with DNA-binding, chromatin-binding, and transcription factor activity. It is associated with the regulation of glucosinolate biosynthetic processes, including aliphatic and indolic glucosinolate biosynthesis and accumulation, as well as the shikimate pathway and positive regulation of flavonoid anabolism. The gene is linked to cellular responses to sulfur starvation, defense responses to insects and herbivory, and induced systemic resistance. BoHAG1 has been connected to numerous agronomic traits, including seed protein content, lignin biosynthesis, aphid and insect damage response, disease tolerance, flowering time, root architecture traits, and responses to abiotic stresses such as salinity, desiccation, and oxidative stress. It localizes to the nucleus and is associated with MYC4. Related genes in other species are linked to drought tolerance, ammonium stress response, and resistance to fungal pathogens.