WR3 — Lactuca sativa

Summary

LsWR3 (WR3, NRT3.1, NRT3.2, LsNAR2, LsNRT3.2, LsNRT3.1, NAR2) on chromosome 4 of garden lettuce (Lactuca sativa) encodes a protein with a Transptr_NO3_Nar2 domain and is annotated with nitrate transmembrane transporter activity. The gene is associated with nitrate transmembrane transport, cellular response to nitrate, nitrate assimilation, response to wounding, and cell wall organization. It localizes to the membrane, plasmalemma, and cytoplasm. LsWR3 is linked to nitrogen sensitivity, nitrate sensitivity, biomass yield, seed yield, root hair length, root development, flowering time, anthocyanin content, drought tolerance, and disease tolerance. It is also associated with cadmium concentration and root oxidative activity. Related genes in other species link the family to high-affinity nitrate uptake and nitrate accumulation.