F3H — Triticum aestivum

Summary

TRAESCS2B02G613300, designated TaF3H on wheat chromosome 2B, encodes a flavanone 3-dioxygenase (EC 1.14.11.9) that also exhibits chalcone isomerase and flavonol synthase activities. The protein belongs to the 2-oxoglutarate/Fe(II)-dependent dioxygenase superfamily and is annotated with vitamin C and metal binding. TaF3H is associated with anthocyanin, flavonoid and coumarin biosynthesis, pigmentation, and responses to UV-B, auxin and fungal elicitors. The gene has been linked to spike and spikelet length, plant height, anther and stamen morphology, seed coat colour, anthocyanin and chlorophyll content, IAA levels, salinity tolerance, oxidative stress response, seed germination, root phototropism, and circadian clock regulation. Related genes in other species are associated with flavonol and proanthocyanidin accumulation, seed coat pigmentation, UV-B tolerance, and root gravitropism.