eIF4G — Brassica juncea

Summary

BJUB05G31600S (BjEIFISO4G1, eIF4G) on chromosome B05 of Indian mustard encodes a protein with MIF4G-like and ARM-type fold domains, possessing translation initiation factor activity, mRNA binding, DNA binding and zinc binding. The gene is associated with translation initiation and regulation of translation, and its product localises to the plastid, cytoplasm and nucleus. BjEIFISO4G1 is associated with submergence tolerance, fertility, salinity tolerance, dehydration tolerance, ABA signaling, α-linolenic acid content in seed oil, chloroplast function, growth rate, seed fatty acid composition, oleic acid content in seed oil, eicosanoic acid content in seed oil, heat tolerance, plant growth, reduced germination, impaired fertility, and altered stress responses. Studies of related genes in other species link the family to stress response, abscisic acid sensitivity, chlorophyll content, photochemical quenching, seed viability, and growth rate.