ABR1 — Capsicum annuum

Summary

CaABR1 (T459_29988) on pepper chromosome 12 encodes an ethylene-responsive transcription factor ABR1 with an AP2/ERF domain and DNA-binding transcription factor activity. It is associated with regulation of seed dormancy, gibberellic acid homeostasis, salicylic acid-mediated signaling, cellular response to heat, hyperosmotic salinity response, anthocyanin anabolism, root regeneration, phloem transport, and vegetative-to-reproductive phase transition. The gene is linked to traits including seed set, flowering time, plant size, stem elongation, pollen fertility, anthocyanin content, leaf senescence, root thickness, and gibberellic acid and cytokinin sensitivity. It has been connected to abscisic acid signaling, osmotic stress tolerance, seed germination, pathogen susceptibility, and cold acclimation. Related genes in other species link the family to salt stress tolerance, drought tolerance, plant architecture, male fertility, and chlorophyll degradation.