YS1 — Sorghum bicolor

Summary

SORBI_3004G011900 (SbYS1) on sorghum chromosome 4 encodes a YSL-like protein with Fe-NA chelate transporter and oligopeptide transmembrane transporter activity. The gene is associated with iron ion membrane transport, response to iron and zinc, glutathione and sucrose metabolism, phenylpropanoid and lignin anabolism, defense response, signal transduction, and developmental processes involved in reproduction and seed development. It has been linked to grain filling period, photosynthetic rate, chlorophyll content, and heavy metal stress responses including iron and chromium tolerance, iron homeostasis, and mineral transport. Localization evidence connects the product to the plastid envelope, vacuolar membrane, tonoplast, Golgi, mitochondria, and plasma membrane. Related genes in other species are linked to seed metal loading, metal remobilization during senescence, and grain iron and zinc content.