YS1 — Sorghum bicolor

Summary

SORBI_3009G090400 (YS1) on sorghum chromosome 9 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, and signal transduction. It is linked to grain filling period, photosynthetic rate, chlorophyll content, heavy metal stress response, heavy metal stress tolerance, chromium stress response, iron tolerance, iron deficiency tolerance, iron homeostasis, seed iron content, copper distribution, mineral transport, copper remobilization, iron remobilization, zinc remobilization, metal ion homeostasis, and copper homeostasis. Localization evidence links the product to the plastid envelope, tonoplast, Golgi, mitochondria, and plasma membrane. Studies of related YSL family members in other species associate the family with seed metal loading, metal remobilization during senescence, iron content in grain, and tolerance to saline-alkaline stress.