GTR1 — Camelina sativa

Summary

CsGTR1 (CSA04G030980) on Camelina sativa chromosome 4 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. It is also associated with anther dehiscence, stamen development and filament elongation, fertility, lateral root development, and aphid resistance. Additional associations include gibberellic acid and jasmonoyl-L-isoleucine transport, jasmonate signaling, and wound response. The protein localises to multiple cellular compartments including the plasma membrane, Golgi complex, cytosol, nucleus, and plasmodesmata. Studies of related genes in other species link the family to phytohormone transport and long-distance transport of aliphatic glucosinolates.