DREB2 — Brassica oleracea

Summary

BoDREB2 (BOLC102_C09P074690.1_BOLC102_V1) on cabbage chromosome 9 encodes a protein with an AP2/ERF DNA-binding domain and annotated NAD ADP-ribosyltransferase, ubiquitin-protein transferase, and transcription coactivator activities. It is associated with responses to abiotic stimuli including ozone and superoxide, as well as positive regulation of leaf senescence, chlorophyll breakdown, stomatal complex patterning, trichome branching, glucosinolate metabolism, and MAPK cascades. The gene is linked to yield, plant height, chlorophyll content, transpiration rate, root development traits, and stress tolerance phenotypes such as dehydration, heat, osmotic, and salinity responses. It localizes to the nucleus, cytoplasm, nucleolus, and RNA polymerase II, IV, and V complexes. Studies of related genes in other species connect the family to drought, heat, and cold stress tolerance, as well as tuberization traits.