PNH — Oryza sativa Japonica

Summary

OsPNH (OS07G0188000) encodes an Argonaute family protein with Piwi, PAZ, and RNaseH-like domains and RNA endonuclease and RNA binding activities. It is associated with a wide range of developmental and reproductive processes, including appendage, xylem, and trichome morphogenesis, stem cell population maintenance, and both male and female meiotic nuclear division, as well as microgametogenesis and megagametogenesis. The gene is also linked to zinc import, gibberellin and glycan biosynthesis, sucrose metabolism, cellulose anabolism, and responses to arsenic. In terms of agronomic traits, OsPNH has been connected to grain size and yield, tiller angle and number, plant height, leaf shape and size, rolled leaf, spikelet number, amylose content, root length, water use efficiency, photosynthetic rate, stomatal resistance, and tolerance to heat, drought, and salt. The protein localises to the nucleus, cytoplasm, and nucleolus. Related genes in other species link the family to small RNA-mediated gene regulation.