HPD — Brassica oleracea var. botrytis

Summary

BoHPD (HPD) on cauliflower chromosome 8 encodes a 4-hydroxyphenylpyruvate dioxygenase, an iron-binding enzyme with conserved dioxygenase domains. The gene is associated with the biosynthesis of plastoquinone, vitamin E, vitamin A, and carotenoids, as well as with L-phenylalanine and tyrosine catabolism. Its product has been linked to extracellular, mitochondrial, and cytosolic localisation. Studies of the Arabidopsis relative connect the HPD family to herbicide response, tocopherol content and composition, chlorophyll retention, and photosynthesis. Associations transferred from related genes in other species also link the family to leaf necrosis, leaf temperature, seed weight, and protein content.