DREB2 — Brassica juncea

Summary

BJUA10G26920S (BjDREB2) on Indian mustard chromosome A10 encodes a protein with an AP2/ERF domain, DNA binding, transcription coactivator activity, NAD ADP-ribosyltransferase activity, and ubiquitin-protein transferase activity. It is associated with upregulation of chlorophyll breakdown, defense response, flower development, leaf senescence, stomatal complex patterning and development, trichome branching and papilla formation, glucose-mediated signalling, nitric oxide anabolism, photoperiodism, flowering, red/far-red light phototransduction, glucosinolate metabolism, and protein autoubiquitination. The gene is linked to yield, plant height, shoot dry weight, starch content, transpiration rate, stomatal resistance, water stress response, osmotic sensitivity, nitrate sensitivity, UV-B sensitivity, jasmonic acid sensitivity and content, arsenic concentration, root and lateral root traits, cell elongation, carpel and floral organ development, meristem identity, and leaf senescence. It localises to the nucleus, cytoplasm, nucleolus, RNA polymerase II/IV/V complexes, and the Mediator complex.