CS4 — Daucus carota subsp. sativus

Summary

DcCS4 (DCAR_021482) on carrot chromosome 6 encodes a SAM-dependent methyltransferase with caffeine synthase, demethylphylloquinone methyltransferase, and S-adenosyl-L-methionine:benzoate carboxyl methyltransferase activities. The gene is associated with jasmonic acid metabolism and signaling, strigolactone anabolism, oxylipin anabolism, alkaloid metabolism, and nicotinate metabolism. It has been linked to responses to wounding, ethylene, and other organisms, as well as regulation of secondary shoot formation. The encoded protein localizes to both the cytoplasm and nucleus. Associations with female flower formation, parasitoid attraction, and NAD biosynthesis have been noted. Studies of related genes in other species link the family to defense responses, salicylic acid signaling, systemic acquired resistance, and herbivore defense, as well as wound healing and strigolactone biosynthesis.