GTR1 — Camelina sativa

Summary

CsGTR1 (CSA06G021600) on Camelina sativa chromosome 6 encodes a member of the POT (peptide transporter) family within the major facilitator superfamily (MFS), with experimentally confirmed glucosinolate:proton symporter activity. The gene is associated with phloem glucosinolate loading and has been linked to glucosinolate distribution and accumulation, including in seeds, as well as to aphid resistance, wound response, and jasmonate signaling. Additional associations include fertility, anther dehiscence, stamen development and filament elongation, lateral root development, and transport of gibberellic acid and jasmonoyl-L-isoleucine. The encoded protein localises to multiple cellular compartments, including the plasma membrane, Golgi complex, plasmodesmata, cytosol, and nucleus. Studies of related genes in other species connect the family to phytohormone transport and long-distance transport of aliphatic glucosinolates.