CHS — Daucus carota subsp. sativus
Summary
DCAR_022783 (DcCHS) on carrot chromosome 6 encodes a chalcone synthase, a type III polyketide synthase. The enzyme exhibits naringenin-chalcone synthase, chalcone isomerase, flavanone 4-reductase, flavonol synthase, and phloroisovalerophenone synthase activities. DcCHS is associated with anthocyanin, flavonoid, polyketide, and cannabinoid biosynthesis, as well as pollen wall assembly, auxin polar transport, and responses to UV, UV-A, UV-B, and gravity. The gene is linked to traits including anthocyanin content, root morphology, flowering time, photosynthetic rate, respiration rate, stomatal opening, and abiotic stress responses such as salt, drought, and oxidative stress tolerance. It has been connected to root-knot nematode resistance and male sterility. Studies of related genes in other species link the family to seed coat pigmentation, flavonol biosynthesis, and UV-B sensitivity.
Annotations
- Chromosome
- 6
- Related genes
- CHS, SUM3, LAP5, DFR, SUM1, KMD3, FLS, SCE1
- GO terms
- Chalcone Isomerase Activity, translation elongation, Acyltransferase Activity, Transferring Groups Other Than Amino-acyl Groups, secondary metabolism, regulation of phenylpropanoid metabolism, Pollen Exine Formation, Flavonol Synthase Activity, flavonoid anabolism
- Publications
- 29282604, 27129483, 15345049, 36377737, 21717185, 17701204, 20309578, 15824099
- Traits
- circadian rhythm, circadian clock regulation, photosynthetic activity, flavonoid biosynthesis, seed coat color, lateral root development, UV-B stress response, salt tolerance