PNH — Solanum lycopersicum

Summary

SlPNH (SOLYC12G006790.3) on tomato chromosome 12 encodes an Argonaute family protein containing Piwi, PAZ, and RNaseH-like domains, with annotated molecular functions including siRNA binding, RNA endonuclease activity, and histone ubiquitin ligase activity. In tomato, SlPNH is associated with fruit yield and axillary bud formation, and is linked to leaf polarity, leaf morphology, virus resistance, auxin signalling, TAS3 tasiRNA biogenesis, and the juvenile-to-adult transition. The gene has been connected to numerous traits including lycopene content, photosynthetic ability, style length, root phototropism, leaf curling, meristem development, and lignin biosynthesis. Studies of related genes in other species link the family to seed dormancy, early flowering, pale leaves, histone ubiquitination, and competitive growth.