GRP1 — Sorghum bicolor

Summary

SORBI_3009G023200, designated GRP1 (also known as GPRP1-5), encodes a glycine-rich protein on sorghum chromosome 9. The product is annotated with protein binding molecular function and is localized to the nucleus. This gene is associated with defense response, immune response, and innate immunity biological processes. In sorghum, GRP1 has been linked to drought stress response, cell elongation, and spikelet development. Studies of related genes in other species connect the GRP1 family to grain thickness, grain width, grain size, grain weight, lignin content, anthocyanin content, and low temperature stress response. Observations of related genes in other species associate the family with cold tolerance, plant growth, and grain quality. The family has also been connected to root morphology and drought tolerance traits.