HSP70 — Oryza sativa Indica Group

Summary

BGIOSGA037626 (OiHSP70, HSP70) on chromosome 12 of Indica rice encodes an ATP-dependent protein folding chaperone with ATP hydrolase activity and heat shock protein binding capacity, belonging to the Hsp70 family. The gene is associated with protein refolding, the ERAD pathway, the unfolded protein response, auxin transport and signaling, response to heat and other stresses, response to virus, pollen tube growth, and amino acid membrane transport. Its product localizes to the cytoplasm, nucleus, membrane, chloroplast membrane, ER lumen and chaperone complex, and axonemal central pair projection. OiHSP70 is linked to heat tolerance, grain yield, spikelet fertility, spikelet number, plant height, root length, leaf size, and relative root length. Related genes in other species link the family to grain shape, grain width, and grain length.