PLC1 — Triticum aestivum

Summary

TaPLC1, located on bread wheat chromosome 1A, encodes a phosphoinositide-specific phospholipase C (EC 3.1.4.11) with phosphatidylinositol-4,5-bisphosphate phospholipase C activity, featuring PI-PLC family domains, a C2 domain, and EF-hand motifs. The gene is associated with heat stress tolerance, as observed for the PLC1-2B variant, and is linked to phosphoinositide-mediated signaling, calcium ion homeostasis, phosphatidic acid anabolism, and auxin biosynthetic processes. It has been connected to numerous agronomic traits including grain number, grain weight, grain protein content, ear number, heading time, harvest index, root weight and length, shoot fresh weight, chlorophyll content, water use efficiency, and disease tolerance. The gene is also associated with responses to salinity, oxidative stress, and high temperature, as well as auxin sensitivity and nitrate uptake. Related genes in other species link the family to abiotic stress response, plant growth, and development.