YS1 — Zea mays

Summary

ZmYS1 (ZM00001EB249020) on maize chromosome 5 encodes a YSL-like protein with Fe-NA chelate transporter activity and oligopeptide transmembrane transporter activity, localizing to the vacuolar membrane, plasmalemma, and membrane. The gene is associated with iron and zinc transport and responses, as well as threonine metabolism, hemostasis, spore formation, nitrogen fixation, ear development, hormone metabolism, pigment anabolism, sterol metabolism, secondary metabolite biosynthesis, and auxin transport pathways including polar auxin transport and root gravitropism. ZmYS1 is linked to numerous agronomic traits including grain yield, grain weight, ear weight and diameter, plant height, root weight and length, shoot dry weight, seedling vigor, chlorophyll content, leaf chlorosis and necrosis, leaf curling, flower color, shrunken endosperm, sulfur, amino acid, sugar, protein, and cadmium and iron concentrations, transpiration rate, and stomatal resistance. Related genes in other species support these associations.