PNH — Oryza sativa Indica Group

Summary

BGIOSGA013699 (PNH, OiPNH) on chromosome 3 of Indica rice encodes a protein with Piwi, PAZ, Argonaute N and Mid domains, characteristic of the Argonaute family, and is annotated with multiple molecular functions including siRNA binding, miRNA binding, dsRNA binding, histone ubiquitin ligase activity, and DNA-binding transcription activator activity. In rice, the gene is associated with diverse developmental and reproductive processes: PNH1 has been linked to sheath development, AGO1B to seed, height, tiller and vascular bundle traits, AGO17 to grain yield and reproductive growth, and MEL1 to meiosis, cell division and sterility. Antiviral immunity has also been connected to AGO1. The gene is further associated with leaf polarity, auxin signaling, shoot apical meristem initiation, and the biogenesis of TAS3 ta-siRNAs. Related genes in other species are linked to developmental timing, floral organ development and drought stress response.