PNH — Zea mays

Summary

ZmPNH (ZM00001EB320080) on maize chromosome 7 encodes an argonaute 1 protein with RNA endonuclease activity and RNA binding, containing Piwi, PAZ, and RNaseH-like domains. This gene is associated with numerous biological processes including meristem determinacy, leaf formation, floral organ abscission, female meiotic nuclear division, microgametogenesis, trichome spacing, cellular response to virus, and regulation of cellular localization. It localizes to the nucleus, nucleolus, NOR, and cytoplasm. Trait associations include grain yield, grain weight, grain length, grain size, seed size, ear weight, rolled leaf, chlorophyll content, drought tolerance, anthesis time, inflorescence branching, lignin content, proline content, and abscisic acid sensitivity. Studies of related genes in other species link the family to small RNA-mediated gene regulation and reproductive development.