Function of Anthocyanin and Chlorophyll Metabolic Pathways in the Floral Sepals Color Formation in Different Hydrangea Cultivars.

ABSTRACT: Hydrangea (Hydrangea macrophylla) is distinguished by having sepals instead of real petals, a trait that facilitates color diversity. Floral color is largely predetermined by structural genes linked to anthocyanin production, but the genetic factors determining floral hue in this non-model plant remain unclear. Anthocyanin metabolites, transcriptome, and the CIEL*a*b* hue system were employed to elucidate the biochemical and molecular mechanisms of floral color formation in three hydrangea cultivars: 'DB' (deep blue), 'LB' (light blue), and 'GB' (green blue). UPLC-MS/MS identified 47 metabolites, with delphinidin, cyanidin, malvidin, petunidin, pelargonidin, and peonidin being prominent. Delphinidins were 90% of the primary component in 'DB'. The dataset identifies 51 and 31

SUBMITTER: Ke Y 

PROVIDER: S-EPMC11901515 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature