JR2 — Triticum aestivum

Summary

TRAESCS1D02G289800 (TaJR2) on wheat chromosome 1D encodes a protein with pyridoxal phosphate binding and transaminase activity, annotated for nicotianamine aminotransferase activity (EC 2.6.1.80), cysteine-S-conjugate β-lyase activity, and S-alkylthiohydroximate lyase activity. The gene is associated with IAA and ethylene biosynthetic processes, tyrosine and phenylalanine breakdown, vitamin E anabolism, adventitious root development, fruit ripening, hyperosmotic salinity response, and response to jasmonic acid and microbial phytotoxin. It is linked to grain protein content, spikelet length, anther length, spike length, and zinc content traits. Localisation evidence places the product in the cytosol, plastid, mitochondria, apoplast, and plant-type vacuole. Related genes in other species connect the family to tyrosine degradation, tocopherol biosynthesis, and iron accumulation.