PNH — Solanum tuberosum

Summary

StPNH (PNH) on potato chromosome 1 encodes a protein argonaute 7, a member of the Argonaute family containing Piwi, PAZ and RNaseH-like domains. The gene is associated with dsRNA and siRNA binding, RNA endonuclease activity, and miRNA and siRNA metabolic processes, as well as gene silencing by miRNA-directed mRNA cleavage. StPNH is associated with leaf polarity, leaf morphology, auxin signalling, TAS3 tasiRNA biogenesis, and the juvenile-to-adult transition. Associations with traits include photosynthetic ability, root phototropism, meristem development, flower and inflorescence morphology, lignin biosynthesis, and responses to UV-A and UV-B light. The gene is also associated with virus resistance, arbuscular mycorrhizal fungal colonization, seed dormancy, germination time, and reduced stomatal index. Related genes in other species are linked to shoot meristem organization, organ polarity, vascular development, and floral development.