GS3 — Oryza sativa Japonica

Summary

OS03G0407400 (GS3, also known as OsAGG3 or AGG3) in rice chromosome 3 encodes a protein belonging to the GG3-like family and possesses GTPase activity, GTP binding, and protein binding. This gene is associated with grain size, grain length, grain width, grain shape, grain yield, seed size, seed development, and yield traits. It is also linked to panicle weight, panicle number, spikelet fertility, starch mobilization, amylose and amylopectin content, sugar content, nitrogen content, and harvest index. GS3 is associated with floral organ structural organization, organ growth, regulation of root morphogenesis, carbohydrate transport, sucrose metabolism, and responses to various sugars. The protein localizes to the cell periphery, plasmalemma, nucleus, and extracellular space. Related genes in other species link the family to organ size, seed yield, stress response, and defense responses.