TPS Expression, Not Copy Number, Explains Aroma Diversity among Grapevine (Vitis vinifera L.) Cultivars

Terpenoids are major contributors to grapevine berry and wine aroma, with mono- and sesquiterpenoids exhibiting substantial variation among cultivars. However, the genetic basis of cultivar-specific terpenoid profiles remains only partially understood due to gene duplications that expanded the terpenoid synthase (TPS) gene family across different cultivars. Here, we compared haplotype-resolved…

biorxiv.org ·2026-08-04

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