POL — Triticum turgidum subsp. durum

Summary

TRITD6AV1G168120, designated POL (TtPOL) on durum wheat chromosome 6A, encodes a protein of the PP2C/PPM-type phosphatase family (EC 3.1.3.16) with phospholipid-binding and metal-binding activity. The gene is associated with meristem cell maintenance, meristem structural organization, phyllome development, polar cell growth, and regulation of intracellular signaling and DNA-templated transcription. It is linked to defense response, signal transduction, and the CRISPR-Cas system. The product localizes to the nucleus, plasma membrane, and mitochondria. Phenotypic associations include seedling lethality, meristem termination with reduced floral organs, and effects on root stem cell maintenance, leaf development, embryo development, vascular development, and peroxisomal function. Studies of related genes in other species connect the family to shoot and root meristem development, grain size, plant height, drought tolerance, and tassel branch number.