F3H — Capsicum annuum

Summary

CaF3H (T459_06225) on pepper chromosome 2 encodes a flavanone 3-dioxygenase, a 2-oxoglutarate-dependent dioxygenase with flavone synthase, flavonol synthase and chalcone isomerase activities. The gene is associated with anthocyanin, flavonoid, coumarin and pigment anabolism, as well as responses to UV-B, UV, auxin, molecules of fungal origin and defense. It is linked to fruit color, flavonoid and anthocyanin content, stamen morphology, root phototropism, oxidative stress response, and UV-B light sensitivity. Phenotypic associations include anthocyanin and proanthocyanidin accumulation, pollen traits (germination, viability, thermotolerance, tube elongation), powdery mildew resistance, lateral root and root hair formation, cold acclimation, circadian clock regulation, photosynthetic activity, and pathogen response. The protein localises to the cytosol, nucleus, endoplasmic reticulum and tonoplast.