ESR1 — Oryza sativa Indica Group

Summary

BGIOSGA021296 (ESR1, also known as SHI1, HOS5, RCF3) on chromosome 6 of Indica rice encodes a K Homology (KH) domain-containing protein with RNA, DNA, and protein binding activities, as well as protein phosphatase activity and pri-miRNA binding. The gene is associated with pri-miRNA processing, regulation of gene expression, and defence responses to fungi, along with jasmonic acid and abscisic acid signaling, heat acclimation, and responses to wounding, salinity, and osmotic stress. It localises to the nucleus and D bodies. Phenotypically, ESR1 is linked to culm strength, panicle number, tiller number, drought tolerance, cold tolerance, root development, plant architecture, flowering time, and pollen fertility restoration. It has also been connected to cytoplasmic male sterility, disease tolerance, and oxidative stress response. Studies of related genes in other species link the family to stress tolerance, abscisic acid response, and de novo root organogenesis.