PYL1 — Brachypodium distachyon

Summary

BRADI_1G37810V3 (BdPYL1) on chromosome 1 encodes a protein with abscisic acid binding, protein phosphatase inhibitor activity, and kinase regulator activity, placing it in the PYR/PYL/RCAR family of ABA receptors. It is associated with regulation of abscisic acid mediated signalling, stomatal opening and movement, seed dormancy release and germination, and defence responses to bacteria. The gene is linked to traits including drought resistance, salinity tolerance, osmotic stress tolerance, vegetative vigour, seed yield, transpiration rate, and responses to high and low temperature stress. Studies of related genes in other species connect the family to drought tolerance, grain yield, and biotic stress responses, as well as heat tolerance, biomass, and virus resistance.