HRD — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.4HG0413600 (HvHRD) on chromosome 4H encodes a DRE1A-I AP2/ERF domain-containing transcription factor that localises to the nucleus and exhibits DNA-binding and transcription-regulatory activity. The gene is associated with protein breakdown, glucosinolate metabolism, defence response to fungi, and DNA-dependent transcription. Studies of related genes in other species link the AP2/ERF family to grain number, grain size, grain yield, seed size, protein content, sodium uptake, and quality traits. In Arabidopsis, family members have been connected to drought tolerance, salt tolerance, and water use efficiency, while in rice they are associated with biomass, photosynthesis, yield, stress tolerance, and shoot and root biomass.