PNH — Oryza sativa Indica Group

Summary

BGIOSGA024696 (PNH, also known as ZIP, PNH1, OiSHL4, and multiple AGO designations) on chromosome 7 of Indica rice encodes a protein containing Piwi, PAZ, and Argonaute domains, and is annotated with diverse molecular functions including siRNA and miRNA binding, histone ubiquitin ligase activity, and DNA-binding transcription activator activity. In rice, the gene is associated with sheath development, reproductive growth, meiosis, cell division, antiviral immunity, and traits including grain, yield, height, tiller, and seed characteristics. It has been linked to biological processes such as miRNA metabolism, gene silencing by miRNA, somatic stem cell population maintenance, and regulation of body size. Localization evidence connects the protein to the BAT3 complex, D body, protein storage vacuole, and thylakoid. Studies of related genes in other species link the family to drought stress response, floral organ development, shoot meristem organization, and heat tolerance.