WRKY22 — Capsicum annuum

Summary

CaWRKY22 (T459_00219) on pepper chromosome 1 encodes a WRKY transcription factor 27 with sequence-specific DNA binding and promoter-specific chromatin binding activities, localising to the nucleus. This gene is associated with the regulation of antifungal innate immune responses, defense responses, and responses to bacterial and fungal molecules, chitin, salicylate, jasmonic acid, ethylene, and gibberellin. It is linked to downregulation of abscisic acid and gibberellic acid mediated signaling, gibberellin metabolism, virus-induced PTGS, cellular response to hypoxia, and cell death. Associations with agronomically relevant traits include disease resistance, bacterial wilt resistance, heat tolerance, cryo-stress tolerance, ethylene sensitivity and production, senescence, root development, lateral root development, primary root length, hypocotyl length, and aphid susceptibility. Studies of related genes in other species link the family to innate immunity, leaf senescence, submergence stress tolerance, and ethylene biosynthesis.