BZIP63 — Capsicum annuum

Summary

CaBZIP63 (T459_21581) on pepper chromosome 8 encodes a basic leucine zipper (bZIP) transcription factor with DNA-binding, protein dimerization, and phosphorelay response regulator activities. It is associated with diverse biological processes including regulation of starch biosynthesis, sucrose-induced translational repression, aerenchyma formation, cellular responses to glucose and starvation, retrograde signaling, and systemic acquired resistance via salicylic acid. The gene is linked to numerous agronomic traits such as seed protein content, biomass yield, seed yield, anthocyanin content, leaf trichome density, root length and thickness, and responses to biotic and abiotic stresses including bacterial wilt resistance, oxidative stress, and low temperature. It has also been connected to plastid and chloroplast development, female sterility, and far-red light sensitivity.