PNH — Daucus carota subsp. sativus

Summary

DCAR_010213 (DcPNH) on carrot chromosome 3 encodes a protein with Argonaute, Piwi, PAZ and RNaseH-like domains, and is annotated with multiple molecular functions including siRNA binding, RNA endonuclease activity, histone ubiquitin ligase and deubiquitinase activities, superoxide dismutase activity, and DNA-binding transcription activator activity. The gene is associated with miRNA and siRNA processing, gene silencing by miRNA-directed mRNA cleavage, phloem development, somatic stem cell population maintenance, cell fate commitment, and temporal regulation of development. It has been linked to traits including leaf and flower morphology, root phototropism, lignin biosynthesis, photosynthetic ability, gibberellic acid and cytokinin content, UV light sensitivity, osmotic response, and vegetative growth time. Phenotypic associations include leaf polarity, virus resistance, auxin signalling, arbuscular mycorrhizal colonization, seed dormancy, germination time, and stomatal development. Related genes in other species are linked to histone ubiquitination, leaf colour, flowering time, and fungal susceptibility.