CHS — Nicotiana attenuata
Summary
A4A49_65921 (CHS1B) in coyote tobacco (Nicotiana attenuata) encodes a type III polyketide synthase with chalcone/stilbene synthase domains and exhibits naringenin-chalcone synthase, chalcone isomerase, and flavonol synthase activities. The gene is associated with flavonoid, anthocyanin, and phenylpropanoid biosynthesis, as well as pigmentation, pistil development, and responses to UV light and gravity. It has been linked to flower color, anthocyanin content, seed size, photosynthetic rate, stomatal opening, and abiotic stress responses including salt and drought tolerance. Additional associations include cytoplasmic male sterility, stamen morphology, root phototropism, and oxidative stress response. Studies of related genes in other species connect the family to pollen exine development, male fertility, sporopollenin biosynthesis, and disease resistance traits such as late blight and powdery mildew resistance.
Annotations
- Chromosome
- scaffold01995
- Related genes
- CHS, SUM3, LAP5, DFR, SUM1, KMD3, FLS, SCE1
- GO terms
- homeostasis, Chalcone Isomerase Activity, flavonoid metabolism, Acyltransferase Activity, Transferring Groups Other Than Amino-acyl Groups, secondary metabolism, regulation of phenylpropanoid metabolism, Pollen Exine Formation, auxin 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