AIN1 — Brachypodium distachyon

Summary

BRADI_1G05660V3 (BdAIN1) on chromosome 1 of Brachypodium distachyon encodes a 5'-3' exoribonuclease (EC 3.1.13.-) with RNA, mRNA and zinc-binding activities. The gene is associated with positive regulation of mRNA catabolic process, miRNA catabolic process, and deadenylylation-independent decapping. It is associated with response to 1-aminocyclopropane-1-carboxylic acid, cold acclimation, heat acclimation, cellular thermotolerance, geotropism, polar cell growth, phloem or xylem histogenesis, GABA shunt, TCA cycle, sodium transport, and fatty acid anabolism. The product localises to P-bodies, stress granules, the cytosol and nucleus. Associations with salt tolerance, ethylene response, immunity, lateral root formation, thermotolerance, abscisic acid sensitivity, leaf senescence, gravitropic response, and viral susceptibility have been noted. Studies of related genes in other species link the family to drought recovery, heat stress tolerance, seed dormancy, and antiviral defence.