PNH — Solanum lycopersicum

Summary

SlPNH (SOLYC03G098280.4) encodes an Argonaute family protein containing Piwi, PAZ, and RNaseH-like domains, with annotated siRNA binding, RNA endonuclease activity, and dsRNA binding. In tomato, SlPNH is associated with fruit yield and axillary bud formation, as well as regulation of post-transcriptional gene silencing, miRNA metabolic processes, and somatic stem cell population maintenance. The gene is linked to diverse traits including leaf morphology and polarity, style length, lycopene content, photosynthetic ability, lignin biosynthesis, virus resistance, and auxin signalling. Associations also extend to seed dormancy, germination time, root growth, flower development, and responses to UV light and fungal colonization. Studies of related genes in other species connect the family to shoot meristem organization, leaf polarity, floral development, heat tolerance, and antioxidant activity.