PP1 — Triticum turgidum subsp. durum

Summary

TRITD1AV1G038920 (symbol PP1) on durum wheat chromosome 1A encodes a protein annotated with protein serine/threonine phosphatase activity, phosphatase inhibitor activity, auxin efflux transmembrane transporter activity, chitosan binding, and transcription coactivator activity. The gene is linked to the protein phosphatase type 1 complex and localizes to the basal plasma membrane, vacuole, nucleolus, and plasmodesmata. It is associated with auxin export across the plasma membrane, regulation of epidermal cell division, leaf shaping, trichome differentiation, root hair tip growth, gibberellic acid homeostasis, and cellular responses to abscisic acid and chitin. Associations with traits include bacterial blight disease resistance, seed set percent, temperature stress response, plant male sterility, adventitious root number, shoot system elongation rate, and leaf morphology traits. Studies of related genes in other species link the family to polar auxin transport, root meristem growth, phototropism, and disease resistance.