GWAS identifies a molecular marker cluster associated with monoterpenoids in grapes.

ABSTRACT: Monoterpenoids are vital compounds that impart a distinctive floral flavor. They exist in both glycosidic and free forms in grapes. The breeding of improved monoterpenoid varieties has consistently been a topic of interest, yet only a limited number of molecular markers have been documented. This study employed a genome-wide association study (GWAS) on an F₁ population crossed between a typical muscat variety ('Muscat of Alexandria') and a non-aromatic variety ('Christmas Rose'), conducted over two consecutive years. A total of 4089 significant single nucleotide polymorphism sites (sigSNPs) and 892 candidate genes associated with monoterpenoids were identified. The sigSNPs corresponding to the glycosidic and total (glycosidic plus free) concentrations of various monoterpenoid co

SUBMITTER: Zhang HM 

PROVIDER: S-EPMC12313343 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature