PR1 — Triticum turgidum subsp. durum

Summary

TRITD2AV1G263640, the PR1 gene on durum wheat chromosome 2A, encodes a protein with abscisic acid binding, nuclease, hydrolase, signaling receptor, and protein phosphatase inhibitor activities. It is associated with defense response, ABA signaling, morphogenesis, conidia formation, and mycotoxin and ochratoxin A anabolism. The gene product localizes to the cytoplasm and nucleus and is linked to resistance to corn earworm. Studies of related genes in other species connect the PR1 family to traits including resistance to fall armyworm, armyworm response, and black point incidence, as well as hydrogen peroxide and anthocyanin content, chlorophyll content, plant height, seed germination, grain yield, crop stand, and salt tolerance.