Unraveling genetic diversity and population structure of pineapple germplasm using genome-wide SNP markers.

ABSTRACT: Pineapple (Ananas comosus (L.) Merr.) is one of the most important tropical fruits worldwide. It is primarily propagated clonally and exhibits high heterozygosity which can mask deleterious mutations, potentially leading to inbreeding depression and hindering breeding efforts. To address this, we conducted a comprehensive genome-wide analysis of 91 pineapple accessions and identified over 7.9 million high-quality SNPs. We utilized these SNPs to investigate the genetic structure and reproductive patterns of diverse cultivars and related varieties. Population structure analysis revealed a unique genetic makeup of A. comosus var. microstachys accessions and unidirectional gene flow from A. comosus var. microstachys into A. comosus var. comosus, A. comosus var. bracteatus, and A. comosus var.

SUBMITTER: Lyu H 

PROVIDER: S-EPMC12276139 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature