CUC2 — Brassica juncea

Summary

BJUB05G34650S (BjCUC2) on chromosome B05 of Indian mustard encodes a NAC-domain transcription factor with DNA binding, transcription coactivator activity, and protein homodimerization activity. It is associated with the formation of plant organ boundaries, meristem initiation, secondary shoot formation, pistil development, xylem development, and regulation of nitrogen utilization and gibberellic acid homeostasis. The gene is linked to numerous traits including leaflet and leaf margin morphology, seed set, axillary bud morphology, shoot system elongation, whole plant size, leaf vein morphology, shoot growth angle, gynoecium development, male sterility, seed yield, pollen fertility, shoot axis branching, stem elongation, cytokinin sensitivity, cotyledon morphology, vegetative growth time, trichome morphology, and flower development. Related genes in other species are associated with cotyledon separation, embryonic shoot meristem formation, leaf margin dissection, and male fertility.