YS1 — Oryza sativa Japonica

Summary

OsYS1 (OS04G0542200) on rice chromosome 4 encodes a member of the YSL-like family of oligopeptide transporters, with molecular functions including Fe-NA chelate transporter activity and oligopeptide transmembrane transporter activity. The gene is associated with iron transport, response to iron, nitrogen fixation, phytoalexin biosynthesis, glutathione metabolism, phloem transport, secretion, detoxification, chlorophyll anabolism, and seed development, maturation, and germination. It is linked to vacuolar membrane, membrane, and plasmalemma localisation. Agronomically, OsYS1 has been connected to grain filling, grain weight, grain yield, harvest index, plant height, leaf temperature, leaf chlorosis, iron concentration, chlorophyll content, net photosynthetic rate, transpiration rate, stomatal resistance, and photosynthetic rate. Related genes in other species are linked to endosperm and plasma membrane phenotypes.