RD21 — Brassica oleracea

Summary

BoRD21 (BOLC102_C06P002400.1) on cabbage chromosome 6 encodes a papain-like cysteine protease of the peptidase C1A family, containing granulin and inhibitor domains and associated with both protease and peptidase inhibitor activities. The gene is linked to programmed cell death, defense responses including callose deposition and induced systemic resistance, herbivore and insect response, viral spread, abscisic acid-mediated stomatal movement, and regulation of photomorphogenesis and circadian entrainment. It is associated with numerous traits including leaf senescence, seed viability, flowering time, photoperiod sensitivity, osmotic and temperature stress responses, disease tolerance, starch mobilization, and protein content. The product localizes to vacuoles, lysosomes, the apoplast, and cytoplasmic vesicles. Studies of related genes in other species link the family to pest resistance, lignin composition, circadian rhythms, and nematode feeding structure development.