NQR — Solanum lycopersicum

Summary

SlNQR (SOLYC01G096430.4) on tomato chromosome 1 encodes a flavoprotein with FMN-binding and NAD(P)H dehydrogenase (quinone) activity, belonging to the FMN reductase-like family. The gene is associated with chloroplast stroma, cytosol and plasma membrane localisation, and is linked to diverse biological processes including reactive oxygen species anabolism, the ascorbate-glutathione cycle, strigolactone anabolism, nitrate import, cellular respiration, chemotropism, lateral root branching and protein oxidation. Agronomically, SlNQR is associated with leaf necrosis, plant dry weight, leaf water potential, chlorophyll and anthocyanin content, fruit size, net photosynthetic rate, quantum yield, water use efficiency, stomatal resistance and opening, nitrate uptake, root branching, bacterial disease response and drought tolerance. Studies of related genes in other species link the family to leaf dry weight, chilling and salt stress responses, flavonoid and sugar content, root length and oxidative stress response.