RSR1 — Triticum aestivum

Summary

TRAESCS1A02G058400 (TaRSR1, also known as TaTOE1-1A or TaRAP2.7-1A) on wheat chromosome 1A encodes a protein with an AP2/ERF domain and DNA-binding, transcription coactivator and corepressor binding, and blue light photoreceptor activities. This gene is associated with regulation of starch biosynthesis, seed development and abscission, floral organ abscission, endosperm development, and nitrogen utilization. It is linked to yield, grain filling, seed size, starch, spike type, spikelet density, floret number, grain weight per spike, and flowering time. Additional associations include plant vegetative period, frost damage, leaf width, stem senescence, photoperiod-sensitive flowering, and responses to aphids, rice thrips, and potassium. Related genes in other species link the family to photoperiodic flowering time control, drought and freezing tolerance, defense against pathogens and insects, trichome density, and hybrid seed viability.