ERF3 — Solanum tuberosum

Summary

PGSC0003DMG400014417, designated ERF3 on potato chromosome 10, encodes an ethylene-responsive transcription factor 3 containing an AP2/ERF DNA-binding domain. The product localises to the nucleus and exhibits DNA-binding transcription factor activity. In potato, ERF3 is associated with salt tolerance and resistance to Phytophthora infestans, the cause of late blight. The gene has been connected to ethylene sensitivity, anthocyanin content, and a salt tolerance trait, as well as to pathogen defense, plant height, stomatal density, flowering time, photosynthesis, germination, early maturity, non-photochemical quenching, plant growth, and CO₂ assimilation. Annotated biological process associations include responses to stress, freezing, heat, and salinity, ethylene-mediated signalling, regulation of secondary shoot formation, floral meristem determinacy, induced systemic resistance, and anthocyanin and flavonoid anabolism. Related genes in other species link the family to TYLCV resistance, yield, disease resistance, and stomatal conductance.