PYL1 — Brachypodium distachyon

Summary

BRADI_1G16710V3 (BdPYL1) on chromosome 1 encodes a protein with abscisic acid binding, protein phosphatase inhibitor activity, and kinase regulator activity, belonging to the START-like domain superfamily and polyketide cyclase/dehydrase family. It is associated with regulation of abscisic acid-mediated signaling, stomatal opening and movement, seed dormancy release, germination, defence response to bacteria, salinity response, and antiviral response. The gene is linked to traits including drought resistance, osmotic stress tolerance, salt stress tolerance, flooding tolerance, heat stress response, leaf senescence, stomatal aperture, water use efficiency, seed yield, grain weight, root system architecture, and vegetative vigor. Studies of related genes in other species connect the family to ABA signaling, drought tolerance, grain yield, and biotic stress responses.