GS1 — Oryza sativa Japonica

Summary

Os01g0757900 (GS1, also known as OsPYRP3, SGPP, or GPP1) encodes a protein with riboflavin kinase, FMN adenylyltransferase, sugar-phosphatase, and sn-glycerol 3-phosphatase activities, and belongs to the HAD-superfamily hydrolase family. In rice, this gene is associated with nitrogen utilization, response to nitrate, photorespiration, the TCA cycle, primary metabolism, sucrose, glutathione, and phenylpropanoid/lignin anabolism. It is linked to endosperm development, syngamy, and detoxification, and localizes to the cytosol, mitochondria, and plasmalemma. GS1 is associated with grain yield, grain weight, spikelet number and weight, panicle number, tiller number, plant height, amylose and sucrose content, nitrogen content, chlorophyll content, root length, and drought tolerance. Related genes in other species are linked to osmotic, salt, and oxidative stress tolerance.