Metabolome and Transcriptome Reveal the Regulatory Mechanism of Anthocyanin Synthesis in Tuber Skin and Flesh of <i>Dioscorea alata</i> L.

ABSTRACT: Anthocyanins can enhance the nutritional and market value of Dioscorea alata L. They are synthesized in a tissue-specific manner in the peel and flesh of tubers in some Dioscorea alata L. varieties, yet the regulatory mechanisms behind this remain unclear. In order to identify the genes involved in anthocyanin synthesis between the skin and flesh of D. alata, three varieties exhibiting distinct anthocyanin phenotypes were studied. A comprehensive analysis of the skin and flesh was conducted to identify the presence of anthocyanins. Three identical anthocyanins were identified in both the skin and the flesh: Alatanin C, Cya-3-O(2-O-glucosyl) glu, and Cya-3-O(6-O-sinapoyl) sop-5-O-glu. To investigate the anthocyanin biosynthesis pathways in purple D. ala

SUBMITTER: Sun J 

PROVIDER: S-EPMC12655603 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature