POL — Triticum turgidum subsp. durum

Summary

TRITD5AV1G233200, designated POL (TtPOL), encodes a protein of the PP2C/PPM-type phosphatase family with phospholipid-binding, protein serine/threonine phosphatase activity, and metal-binding activity. In durum wheat, this gene is associated with meristem cell maintenance, meristem structural organization, phyllome development, polar cell growth, regulation of intracellular signaling and DNA-templated transcription, defense response, and signal transduction. It localizes to the nucleus, plasma membrane, and mitochondria. Phenotypic associations include seedling lethality, meristem termination with reduced floral organs, and suppression of shoot meristem defects and carpel number in clv1-1 mutants, as well as associations with root and stem cell maintenance, leaf and vascular development, embryo development, and peroxisomal function. Studies of related genes in other species link the family to grain size, plant height, drought tolerance, tassel branch number, leaf angle, root length, and seed germination.