ABF4 — Camelina sativa

Summary

CsABF4 (CSA19G026800) on Camelina sativa chromosome 19 encodes a bZIP transcription factor with protein kinase, phosphatase, and calcium-dependent PKC activities, and binds cis-regulatory DNA sequences. The gene is associated with positive regulation of leaf senescence, upregulation of chlorophyll breakdown, abscisic acid-mediated signaling, glucose and ethylene signaling, far-red light response, hydrogen peroxide response, UV-B response, hypoxia response, stomatal movement, seed germination, pollen tube growth, pollen maturation, and glucosinolate metabolism. It localizes to the nucleus, cytoplasm, plasmalemma, plasmodesma, and mitochondria. CsABF4 is linked to numerous agronomic traits including seed yield, photosynthetic ability, transpiration rate, water stress response, photoperiod-sensitive flowering, leaf growth and development, flower and floral organ development, shoot branching, root length, lignin biosynthesis, and sensitivities to iron, magnesium, manganese, nitrate, aluminum, UV-B, jasmonic acid, and osmotic stress. Related genes in other species are associated with drought, salt, cold, freezing, heat, and dehydration stress tolerance, as well as tuberization and storage root yield.