NQR — Capsicum annuum

Summary

T459_22057 (symbol NQR) on pepper chromosome 8 encodes a protein with NAD(P)H dehydrogenase (quinone) activity (EC 1.6.5.2), FMN binding, and a flavoprotein-like superfamily domain. The gene is associated with diverse biological processes including cellular respiration, hydrogen peroxide biosynthesis, detoxification, cold acclimation, fruit ripening, cell cycle phases (G1, S, anaphase), cell death, and virus-induced PTGS. It is linked to traits such as pungency, respiration rate, photosynthetic rate, and drought tolerance. The encoded protein localises to the chloroplast stroma, cytosol, and plasmalemma. Studies of related genes in other species connect the NQR family to chilling stress response, bacterial disease response, oxidative stress response, salt response, and traits including leaf dry weight, chlorophyll content, net photosynthetic rate, water use efficiency, fruit size, and sugar content.