The cucumber (Cucumis sativus L.) mitochondrial genome: intraspecific structural variation, repetitive architecture, and comparative evolutionary dynamics.

ABSTRACT:

Background

Mitochondria are essential organelles with complex mitochondrial genomes (mitogenomes) that challenge conventional assembly and analysis. Compared to plastid and nuclear genomes, plant mitochondrial genomes (mitogenomes) exhibit immense structural complexity and low nucleotide substitution rates. Cucumber (Cucumis sativus L.) is a vital crop and a key model for studying its rare paternal mitogenome inheritance. However, a comprehensive understanding of intraspecific mitogenomic diversity in cucumber has been hindered by the limitations of short-read sequencing, which fails to resolve its complex, repeat-rich architecture.

Results

Here, by leveraging long-read sequencing, we assembled the complete mitogenomes of 12 diverse cucumber accessions. The assemblies reveal

SUBMITTER: You K 

PROVIDER: S-EPMC12542108 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature