Population-level gene copy number variations reveal distinct genetic properties of different Malus species.

ABSTRACT:

Background

Copy number variations (CNVs) are crucial in plant evolution, adaptation, and domestication. In this study, we explored how CNVs contribute to genetic diversity, evolution, and adaptation during apple domestication. We examined the genome-wide CNV profiles and segmental duplications (SDs) in 116 Malus accessions, including domesticated apple (Malus domestica) and its primary progenitor species (M. sieversii and M. sylvestris).

Results

On average, two accessions of the same species showed differences in at least 7,000 genes with varying copy number (CN) profiles. In contrast, accessions from different species had at least 20,000 genes with differing CN profiles. Notably, 700 genes exhibited distinct CN profiles between M. domestica and M. sieversii, with an enrichm

SUBMITTER: Sakina A 

PROVIDER: S-EPMC12285163 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature