Intraspecific Genetic Diversity Analyses of Yam (<i>Dioscorea polystachya</i> Turcz.) Based on DUS Traits and SSR Molecular Markers.

ABSTRACT: Yam (Dioscorea polystachya Turcz.) is an asexually reproduced food and traditional Chinese medicinal crop with extensive genomic variability. However, the detailed characterization of genetic diversity among different yam germplasm samples is still insufficient. This study evaluated the genetic divergence and genetic structure of 113 D. polystachya accessions collected from 17 provinces in China based on 50 distinctness, uniformity, and stability (DUS) traits and 19 simple sequence repeat (SSR) markers. All the selected varieties were categorized into three groups based on morphological characteristics and further validated by principal component analysis. Furthermore, 14 core traits, including 6 leaf traits, 4 tuber traits, 3 bulbil traits, and 1 stem trait, were selected to

SUBMITTER: Gao J 

PROVIDER: S-EPMC12530841 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature