NAS1 — Brassica oleracea var. botrytis

Summary

BoNAS1, located on chromosome 9 of cauliflower (Brassica oleracea var. botrytis), encodes a nicotianamine synthase, an enzyme with nicotianamine synthase activity that belongs to the nicotianamine synthase family and the SAM-dependent methyltransferase superfamily. This gene is associated with nicotianamine anabolism, phloem transport, nitric oxide storage, pollen tube growth, pollen development, and homeostasis. It has been linked to iron translocation and chlorosis. Studies of related genes in other species connect the family to iron and zinc content, iron transport, cadmium detoxification, and carotene content, while tobacco studies link the family to chlorotic leaves, altered metal content, and increased iron uptake.