ERF1 — Nicotiana attenuata

Summary

A4A49_17268 (ERF1B) in coyote tobacco (Nicotiana attenuata) encodes a protein with an AP2/ERF domain, possessing DNA-binding and transcription coactivator activity. It is associated with the regulation of ethylene-mediated signaling, defense responses, and phytoalexin and nicotine biosynthesis. The gene has been linked to trichome branching and papilla formation, as well as responses to drought, salinity, and red/far-red light. It is also connected to flower development regulation and phenylpropanoid metabolism. Associations with traits include disease tolerance, ethylene and auxin sensitivity, photosynthetic rate, hydrogen peroxide content, heterosis, and root and floral organ development. The encoded protein localizes to the nucleus and the Mediator complex. Studies of related genes in other species link the family to stress tolerance, pathogen resistance, and root architecture.