IRT1 — Brassica napus

Summary

BnIRT1 (DARMORV10_A03P51990.1) on chromosome A03 of oilseed rape encodes a member of the ZIP family of metal transporters, possessing iron channel activity and transmembrane transporter activities for copper, manganese, zinc, and cadmium ions. The gene is associated with metal homeostasis, including iron deficiency response and tolerance, as well as accumulation and transport of iron, cadmium, zinc, and nickel. It is linked to photosynthetic rate, chlorophyll and carotenoid content, leaf chlorosis, stomatal resistance, germination rate, and plant growth and development traits. Associations also include pollen germination, cellular response to hypoxia, response to bacteria, and downregulation of abscisic acid-mediated signaling. The encoded protein localises to the plasmalemma, endosome, late endosome membrane, and nucleus, and is linked to ESCRT I complex and TGN. Related genes in other species connect the family to iron uptake, plant growth, and metal accumulation.