YS1 — Sorghum bicolor

Summary

SORBI_3003G002900, designated YS1 (also known as SbYSL3–SbYSL9, YSL1, YSL14, YSL17, YSL18), encodes a membrane-localized protein of the YSL-like and OPT families with oligopeptide transmembrane transporter activity. In sorghum, this gene is associated with glutathione, sucrose, and phenylpropanoid metabolism, lignin biosynthesis, defense response, and signal transduction. It has also been linked to chlorophyll content. Studies of related YSL family members in other species connect this gene family to metal-chelate transport and nutrient homeostasis, though these functions are not yet established for SbYS1 itself.