MAP — Triticum turgidum subsp. durum

Summary

TRITD7BV1G071620, designated TtMAP on durum wheat chromosome 7B, encodes a Rab-GAP TBC domain-containing protein with GTPase-activating protein (GAP) activity. The gene is associated with retrograde transport from endosome to Golgi, the HOG response, protein phosphorylation, and cell death. Its product localises to the retromer complex, endosome membrane, Golgi complex, cytoplasm, and nucleus. TtMAP has been linked to plant height and salt tolerance (SALTTL), as well as auxin-related and shoot meristem phenotypes. Studies of related genes in other species connect the family to grain length and size, grain yield, seed dormancy and germination, root dry weight and number, leaf temperature, water use efficiency, salinity tolerance, stripe rust, lignin and proline content, stomatal opening, photochemical quenching, and oxidative stress response.