DHAR — Capsicum annuum

Summary

CaDHAR (T459_09221) on pepper chromosome 3 encodes a dehydroascorbate reductase (EC 2.5.1.18) with glutathione transferase and copper-binding activities, belonging to the DHAR1/2/3/4 family. This gene is associated with ascorbate metabolism, the ascorbate-glutathione cycle, cellular oxidant detoxification, and responses to hydrogen peroxide, ozone, jasmonic acid, and zinc. It is linked to fruit ripening, seed longevity, chlorophyll fluorescence, and regulation of salicylic acid-mediated signaling. Associations include traits such as net photosynthetic rate, plant height, stem diameter, root volume and length, and respiration rate. The gene is associated with drought stress tolerance, chilling injury tolerance, oxidative stress tolerance, and mutualistic interactions with symbiotic fungi. Its product localizes to the chloroplast envelope, stroma, apoplast, vacuole, plastid, mitochondria, and cytosol.