PNH — Brachypodium distachyon

Summary

BdPNH (BRADI_1G29577V3) on chromosome 1 of Brachypodium distachyon encodes a protein with Piwi and Argonaute domains, including PAZ and RNaseH-like superfamily domains, and is annotated with multiple molecular functions such as siRNA binding, miRNA binding, and histone ubiquitin ligase activity. The gene is associated with diverse biological processes including miRNA and long siRNA processing, gene silencing by miRNA-directed mRNA cleavage, somatic stem cell population maintenance, regulation of cell fate specification, and acropetal auxin transport. It has been linked to traits including leaf shattering, inflorescence development, photosynthetic ability, lignin biosynthesis, root phototropism, and responses to UV-A and UV-B light. Related genes in other species are associated with shoot apical meristem function, leaf morphology, meiosis, antiviral immunity, and grain yield.