ABR1 — Capsicum annuum

Summary

CaABR1 (T459_12450) on pepper chromosome 4 encodes an ethylene-responsive transcription factor with AP2/ERF and DNA-binding domains, annotated with transcription coactivator activity, cis-regulatory region binding, DNA binding, and protein binding functions. It localises to the nucleus and is associated with regulation of seed dormancy, gibberellic acid homeostasis, salicylic acid-mediated signaling, vegetative-to-reproductive phase transition, anthocyanin biosynthesis, hyperosmotic salinity response, phloem transport, and virus-induced PTGS. The gene is linked to traits including shoot elongation, seed set, plant size, male sterility, gibberellic acid and cytokinin sensitivity, pollen fertility, flowering time, leaf senescence, root thickness, and anthocyanin content. Related genes in other species connect the family to seed germination, osmotic stress tolerance, ABA response, and susceptibility to Pseudomonas syringae.