PNH — Oryza sativa Indica Group

Summary

BGIOSGA009631 (PNH, OiPNH) encodes a protein argonaute MEL1, a member of the Piwi/Argonaute family characterized by Piwi, PAZ, and RNaseH-like domains. In indica rice, this gene is associated with diverse molecular functions including siRNA and miRNA binding, histone ubiquitin ligase activity, and superoxide dismutase activity. It is linked to meiosis, cell division, reproductive growth, and somatic stem cell population maintenance. Phenotypic associations include sheath development, erect growth, antiviral immunity, and traits affecting grain, seed, height, tiller, and yield. The gene is also associated with leaf polarity, auxin signaling, and shoot apical meristem initiation. Related genes in other species link the family to drought stress response, floral development, and shoot meristem organization.