PP1 — Triticum turgidum subsp. durum

Summary

TRITD3BV1G105830 (symbol PP1, also known as TtPP1) on durum wheat chromosome 3B encodes a protein serine/threonine phosphatase catalytic subunit belonging to the PP1 family. The gene product exhibits protein serine/threonine phosphatase activity, phosphatase inhibitor activity, and is associated with auxin efflux transporter activity, chitin and chitosan binding, and kinase activity. It localises to the protein phosphatase type 1 complex, plasma membrane, vacuole, nucleolus, and plasmodesmata. PP1 is associated with regulation of epidermal cell division, auxin export, leaf and cotyledon morphogenesis, trichome differentiation, root hair tip growth, gibberellic acid homeostasis, and responses to abscisic acid, chitin, and red light. Associations with agronomic traits include bacterial blight disease resistance, seed set, temperature stress response, plant male sterility, aluminium response, shoot branching, leaf number, and root oxidative activity. Related genes in other species are linked to polar auxin transport, root meristem growth, and vascular patterning.