PR1 — Triticum aestivum

Summary

TRAESCS2A02G476700 (symbol PR1) on bread wheat chromosome 2A encodes a Bet_v_I/MLP domain-containing protein with abscisic acid binding, nuclease, protein phosphatase inhibitor, hydrolase, and signaling receptor activities. In wheat, PR1 is associated with defense response, ABA signaling, photomorphogenesis, digestion, virus-induced PTGS, phenylpropanoid metabolism, and protein synthesis, and localizes to the cytoplasm and nucleus. The gene is linked to powdery mildew resistance, a phenotype observed in this species. Studies of related genes in other species connect the family to traits such as grain yield, plant height, seed germination, anthocyanin content, hydrogen peroxide content, and resistance to fall armyworm and corn earworm.