POL — Brachypodium distachyon

Summary

BRADI_2G38770V3 (POL, also known as PLL1–5, XB15, and BdPP2C26) on chromosome 2 of Brachypodium distachyon encodes a protein with phospholipid-binding and metal-binding activities, belonging to the PP2C/PPM-type phosphatase family. The gene is associated with meristem cell maintenance, meristem structural organization, phyllome development, polar cell growth, defense response, signal transduction, and regulation of intracellular signaling and DNA-templated transcription. It localizes to the nucleus, membrane, plasmalemma, and mitochondria. Phenotypic associations include seedling lethality, meristem termination with reduced floral organs, root stem cell maintenance, leaf development, stem cell identity and specification, embryo development, suppression of shoot meristem defects and carpel number in clv1-1 mutants, short pedicels with compact inflorescence, and peroxisomal function. Studies of related genes in other species link the family to tassel branch number, grain size, plant height, drought tolerance, and root and shoot meristem development.