PR1 — Triticum turgidum subsp. durum

Summary

TRITD2BV1G226310 (PR1) on durum wheat chromosome 2B encodes a protein containing a Bet_v_I/MLP domain and a START-like domain superfamily, with annotated molecular functions including abscisic acid binding, nuclease activity, protein phosphatase inhibitor activity, hydrolase activity, and signaling receptor activity. The gene is associated with defense response, ABA signaling, flavonoid anabolism, morphogenesis, ochratoxin A and mycotoxin anabolism, and conidia formation, and its product localizes to the cytoplasm and nucleus. PR1 is linked to resistance to corn earworm. Studies of related genes in other species connect the family to traits including grain yield, plant height, seed germination, chlorophyll and anthocyanin content, hydrogen peroxide levels, black point incidence, crop stand, and resistance to fall armyworm and European corn borer.