HAG1 — Brassica juncea

Summary

BJUA03G17960S (BjHAG1, also known as BjMYB28) on chromosome A03 of Indian mustard (Brassica juncea) encodes a MYB transcription factor with DNA-binding and transcription factor activity, and is associated with calcium ion and protein binding. The gene is linked to the regulation of glucosinolate biosynthetic processes, including aliphatic and indolic glucosinolate accumulation, and to cellular responses to sulfur starvation. BjHAG1 has been connected to defense responses against insects and pathogens, including resistance to Sclerotinia sclerotiorum, as well as to traits such as seed protein content, root architecture, hydraulic conductivity, and stress tolerance (e.g., ammonium, salt, and oxidative stress). It is also associated with lignin biosynthesis, secondary cell wall biogenesis, stomatal development, and flowering time. Related genes in other species are linked to drought tolerance, herbivory resistance, and glucosinolate content in seeds.