CHS — Daucus carota subsp. sativus

Summary

DCAR_031361 (DcCHS) encodes a chalcone synthase family protein with chalcone/stilbene synthase and polyketide synthase type-III domains, annotated with naringenin-chalcone synthase, trihydroxystilbene synthase, tetraketide alpha-pyrone synthase, chalcone isomerase, flavanone 4-reductase, dihydroflavanol 4-reductase, flavonol synthase, acyltransferase, SUMO transferase, kinase binding, and protein homodimerization activities. This carrot gene on chromosome DCARv2_B7 is associated with chalcone, polyketide, anthocyanin, and flavonoid biosynthesis, pollen wall assembly, regulation of phenylpropanoid and anthocyanin metabolism, response to UV/UV-B, gravity, jasmonic acid, heat acclimation, auxin polar transport, and sumoylation. It localizes to the cytosol, nucleus, ER, and tonoplast. DcCHS is linked to anthocyanin content, UV light sensitivity, root phototropism, stamen morphology, flowering time, photosynthetic rate, respiration rate, stomatal opening, oxidative stress, salt and drought tolerance, root-knot nematode resistance, and male sterility. Studies of related genes in other species connect the family to flavonoid production, seed coat pigmentation, pollen exine development, and UV-B sensitivity.