ANS — Daucus carota subsp. sativus

Summary

DCAR_006772 (ANS, also known as LDOX) on carrot chromosome 2 encodes a leucoanthocyanidin dioxygenase, a 2-oxoglutarate-dependent dioxygenase with leucocyanidin oxygenase, flavonol synthase and flavanone 3-dioxygenase activities. The gene is associated with anthocyanin, proanthocyanidin, flavonoid, coumarin and pigment biosynthesis, as well as regulation of phenylpropanoid metabolism and anthocyanin production. It has been linked to vacuole organization, responses to cold, wounding, jasmonic acid and fungal molecules, and is localized to the cytosol. Associations include anthocyanin content, photosynthetic rate, UV light sensitivity, cold stress response, vacuole development, seed pigmentation, nematode susceptibility and ultraviolet radiation tolerance. Studies of related genes in other species connect the family to flower and fruit color, drought tolerance, chlorophyll content, photosynthetic ability and oxidative stress response.