GTR1 — Brassica juncea

Summary

BjGTR1 (BJUB06G29110S) on chromosome B06 of Indian mustard encodes a member of the major facilitator superfamily and the POT (peptide transporter) family, with experimentally confirmed glucosinolate:proton symporter activity. The gene is associated with phloem glucosinolate loading, glucosinolate anabolism, and defense response. Its product localizes to the plasma membrane, Golgi complex, Golgi trans-cisterna, plasmodesma, cytosol, and nucleus. BjGTR1 is linked to glucosinolate distribution and accumulation, including in seeds, as well as to anther dehiscence, stamen development and filament elongation, fertility, lateral root development, wound response, aphid resistance, and transport of gibberellic acid and jasmonoyl-L-isoleucine. Related genes in other species are associated with glucosinolate transport and long-distance transport of aliphatic glucosinolates.