Deciphering differentially expressed genes and a flavonoid analysis reveal that the metabolic flux shift of flavonoids lightens flower coloration in γ-irradiation-induced Dendrobium hybrid mutants.

Abstract excerpt

BACKGROUND: Flower coloration, a key ornamental trait in Dendrobium orchids, is primarily determined by anthocyanin and flavonoid metabolism. Although the core anthocyanin biosynthetic pathway and its transcriptional regulation have been extensively studied in model plants and natural orchid variants, the molecular basis of pigmentation changes induced by physical mutagens such as γ-irradiation remains poorly...

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