PNH — Daucus carota subsp. sativus

Summary

DcPNH (DCAR_030991) on carrot chromosome 9 encodes a protein with Piwi, PAZ, and RNaseH-like domains, and is annotated with histone ubiquitin ligase, deubiquitinase, superoxide dismutase, L-ascorbate peroxidase, dsRNA binding, siRNA binding, and RNA endonuclease activities. The gene is associated with miRNA and siRNA metabolism, gene silencing by miRNA-directed mRNA cleavage, phloem development, cell fate commitment, somatic stem cell population maintenance, and temporal regulation of development. It is linked to leaf polarity and morphology, virus resistance, auxin signaling, juvenile-to-adult transition, root phototropism, photosynthetic ability, lignin biosynthesis, flower and inflorescence development traits, seed dormancy, germination time, and responses to UV light and osmotic stress. Related genes in other species connect the family to shoot meristem organization, organ polarity, vascular development, heat tolerance, and fruit yield.