PPD1 — Triticum turgidum subsp. durum

Summary

TRITD5AV1G046920, also known as PPD1 or TtPPD1 on durum wheat chromosome 5A, encodes a PsbP C-terminal domain-containing protein with calcium ion binding and protein binding activities. The gene product localizes to the chloroplast thylakoid lumen and is associated with the oxygen-evolving complex of photosystem II and photosystem I assembly. PPD1 is linked to heading time and anthesis time, as well as flowering time. It is associated with seed size, leaf size, rosette size, stomatal density, hypocotyl elongation, leaf curvature, silique shape, and photoautotrophic growth. Studies of related genes in other species link the PPD1 family to additional traits including days to heading, plant height, drought tolerance, protein content, photochemical quenching, and root and leaf morphology.