Figure 5From: 'Le Rouge et le Noir': A decline in flavone formation correlates with the rare color of black dahlia (Dahlia variabilis hort.) flowersExpression of structural genes and transcription factors in D. variabilis cultivars of four different colour types. Expression was measured in comparison to the housekeeping genes Actin in the white cv. White Alva, yellow cvs. Rubens, red cv. Feuerschein and black cv. Chat Noir.Back to article page