YS1 — Oryza sativa Japonica

Summary

OsYS1 (OS04G0524900) on rice chromosome 4 encodes a YSL-like protein with oligopeptide transmembrane transporter activity, belonging to the OPT family. It is associated with iron transport and response to iron, nitrogen fixation, phytoalexin biosynthesis, pH reduction, glutathione metabolism, secretion, phloem transport, detoxification, chlorophyll anabolism, and homeostasis. The gene is linked to seed maturation, development, and germination, as well as embryogenesis. Localization evidence connects it to the vacuolar membrane, plasmalemma, and general membrane. Trait associations include grain yield, grain weight, harvest index, grain filling period, plant height, leaf temperature, leaf chlorosis, chlorophyll content, net photosynthetic rate, transpiration rate, stomatal resistance, and iron concentration.