VAR1 — Brachypodium distachyon

Summary

BdVAR1 (BRADI_1G45160V3) on chromosome 1 of Brachypodium distachyon encodes a protein with AAA chloroplast protein-transporting ATPase, ATP-dependent metallopeptidase, and protease activities, belonging to the peptidase M41 (FtsH) family. The gene is associated with thylakoid membrane organization, chloroplast stroma protein import, mitochondrial protein processing, and response to nitric oxide and thermal stimulus. It localizes to the Ycf2/FtsHi complex, M-AAA complex, chloroplast thylakoid, and mitochondrial membrane. BdVAR1 is associated with variegated leaf, chloroplast development, plant female sterility, spikelet number, heading time, shoot apical meristem development, herbicide sensitivity, and high temperature stress response. Related genes in other species are linked to oxidative stress tolerance, leaf morphology, shoot apical meristem function, and auxin homeostasis.