YS1 — Sorghum bicolor

Summary

SORBI_3006G152600, designated YS1 on sorghum chromosome 6, 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, seed development, defense response, signal transduction, and response to nematode. It has been linked to grain filling period, photosynthetic rate, chlorophyll content, heavy metal stress response, iron deficiency tolerance, iron homeostasis, seed iron content, copper distribution and remobilization, zinc remobilization, and mineral transport. The product localizes to the plastid envelope, vacuolar membrane, tonoplast, Golgi complex, mitochondria, and plasmalemma. Studies of related genes in other species connect the family to seed metal loading, metal remobilization during senescence, and grain iron and zinc content.