Biogenesis of flavor-related linalool is diverged and genetically conserved in tree peony (Paeonia × suffruticosa).

ABSTRACT: Floral scent is an important and genetically complex trait in horticultural plants. Tree peony (Paeonia × suffruticosa) originates in the Pan-Himalaya and has nine wild species divided into two subsections, Delavayanae and Vaginatae. Their flowers are beloved worldwide for their sweet floral fragrance, yet the flavor-related volatiles and underlying biosynthetic pathways remain unknown. Here, we characterized the volatile blends of all wild tree peony species and found that the flavor-related volatiles were highly divergent, but linalool was a unique monoterpene in subsect. Delavayanae. Further detection of volatiles in 97 cultivars with various genetic backgrounds showed that linalool was also the characteristic aroma component in Paeonia delavayi

SUBMITTER: Li S 

PROVIDER: S-EPMC9896599 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature