CDF1 — Brassica juncea

Summary

BJUA06G17400S (BjCDF1) encodes a Dof zinc-finger protein with DNA-binding transcription repressor activity and RNA polymerase II cis-regulatory region sequence-specific DNA binding. This Indian mustard gene on chromosome A06 is associated with regulation of circadian rhythm, upregulation of long-day photoperiodism and flowering, regulation of timing of transition from vegetative to reproductive phase, temperature compensation of the circadian clock, response to blue and far red light, response to hydrogen peroxide, response to cold, negative regulation of cellulose anabolism, chloroplast organization, and ubiquitin-dependent proteolysis. The gene is linked to numerous traits including flowering time, photoperiod sensitivity, plant height, seed growth and development, drought tolerance, disease tolerance, herbicide sensitivity, and salt stress tolerance. It localizes to the nucleus, cytosol, and Cajal body. Studies of related genes in other species link the CDF1 family to photoperiodic flowering time, drought escape response, and temperature compensation.