YS1 — Sorghum bicolor

Summary

SORBI_3009G089532, designated YS1 (also known as SbYSL3–SbYSL9, YSL1, YSL14, YSL17, YSL18), encodes a YSL-like protein of the OPT family with Fe-NA chelate transporter and oligopeptide transmembrane transporter activity. In sorghum, it is associated with iron ion membrane transport, responses to iron and zinc, glutathione and sucrose metabolism, phenylpropanoid and lignin anabolism, seed development, defense response, signal transduction, and response to nematodes. It localizes to the plastid envelope, tonoplast, Golgi, mitochondria, plasma membrane, and extracellular space. The gene is linked to grain filling period, photosynthetic rate, chlorophyll content, and heavy metal stress responses including iron and chromium tolerance, iron homeostasis, and mineral transport. Related genes in other species connect the family to seed iron and zinc content, metal remobilization during senescence, grain weight, yield, and seedling vigor.