Organism | UniProt | Comment | Textmining |
---|---|---|---|
Malus hybrid cultivar | C3UZH2 | cultivars Royalty (ever-red leaf cultivar) and Flame (ever-green leaf cultivar) | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
fruit | - |
Malus hybrid cultivar | - |
leaf | - |
Malus hybrid cultivar | - |
Synonyms | Comment | Organism |
---|---|---|
McDFR | - |
Malus hybrid cultivar |
Organism | Comment | Expression |
---|---|---|
Malus hybrid cultivar | anthocyanin levels shows a positive correlation with the expression of dihydroflavonol 4-reductase. Down-regulation of dihydroflavonol 4-reductase expression results in fading leaf color | down |
Malus hybrid cultivar | anthocyanin levels shows a positive correlation with the expression of dihydroflavonol 4-reductase | up |
General Information | Comment | Organism |
---|---|---|
physiological function | the concentrations of anthocyanins and flavonols correlates with leaf color. It is proposed that the expression of dihydroflavonol 4-reductase and flavonol synthase influences their accumulation. Overexpression of dihydroflavonol 4-reductase, or silencing of flavonol synthase, increases anthocyanin production, resulting in red-leaf and red fruit peel phenotypes. Conversely, elevated flavonol production and green phenotypes in crabapple leaves and apple peel are observed when dihydroflavonol 4-reductase is overexpressed or dihydroflavonol 4-reductase is silenced. These results suggest that the relative activities of dihydroflavonol 4-reductase and flavonol synthase are important determinants of the red color of crabapple leaves, via the regulation of the metabolic fate of substrates that these enzymes have in common | Malus hybrid cultivar |