Phenotypic and Metabolic Variations Induced by Autopolyploidization in Chinese Jujube Cultivars.

ABSTRACT: Autopolyploidization is critical to plant evolution and breeding, but systematic studies on its effects in woody plants remain limited. To address this gap, a systematic investigation covering autopolyploidization-induced variations in two autotetraploid jujube cultivars and their diploid counterparts across morphological, cytological, and metabolic levels was conducted in the present study. Compared with the diploids, the autotetraploid jujubes exhibited larger leaves, flowers, and fruits, but a dwarfing phenotype with reduced fruit set. Additionally, decreased leaf stomatal density and weakened pollen viability were observed in the autotetraploid jujubes. Metabolomic analysis further revealed that autotetraploid fruits accumulated higher contents of soluble sugars, flavonoids, phenolics,

SUBMITTER: Han Y 

PROVIDER: S-EPMC12694531 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature