CCD1 — Triticum aestivum
Summary
TaCCD1 (TRAESCS5A02G001500) on bread wheat chromosome 5A encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity, placing it in the carotenoid oxygenase family. The enzyme is associated with abscisic acid biosynthesis and metabolism, carotenoid and xanthophyll breakdown, and gibberellin metabolism. It has been linked to seed germination, pre-harvest sprouting, alkali stress tolerance, and anther development. The protein localises to chloroplast stroma, cytosol, and plasmalemma. Associations extend to grain yield, drought tolerance, stripe rust, photosynthetic rate, quantum yield, and seed carotenoid content. Studies of related genes in other species connect the family to carotenoid cleavage and β-ionone emission, seed dormancy, abscisic acid accumulation, and drought response.
Annotations
- Chromosome
- 5A
- Related genes
- CCD1, HAP5A, SIG1, ABA1, ABC1, TRAESCS4B02G129700, SIR2, SIG6
- GO terms
- GO:0035304, GO:0006733, GO:0018298, GO:0009108, GO:0034660, GO:0055114, pre-harvest sprouting, Circadian Rhythm
- Publications
- 28145590, 20736450, 17333174, 15862093, PMID:28887381, PMID:20838584, PMID:31010822, PMID:20884803
- Traits
- Phenotype Identical to bps1 Single Mutant, Increased Carotenoid Pigments, Altered Seed Pigmentation, abscisic acid biosynthesis, ABA biosynthesis, carotenoid cleavage, seed carotenoid content, β-ionone emission, herbivore resistance