ArticleThe New phytologist2025
Diverging repeatomes in holoparasitic Hydnoraceae uncover a playground of genome evolution.
Article in The New phytologist, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Nuclear genome profiling of two species ofNAR genomics and bioinformatics · 2026Article
- Progress and prospects of parasitic plant biodiversity genomics.Plant & cell physiology · 2026Review
- Plastid and nuclear phylogenomics of Cyphostemma (Vitaceae) provide new insights into genome size evolution across sub-Saharan Africa.Journal of integrative plant biology · 2026Article
- Comparative Plastome Analysis ofEcology and evolution · 2026Article
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Authors and funding
8 authors.
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Abstract
The transition from an autotrophic to a heterotrophic lifestyle is associated with numerous genomic changes. These often involve large genomic alterations, potentially driven by repetitive DNAs. Despite their recognized role in shaping plant genomes, the contribution of repetitive DNAs to parasitic plant genome evolution remains largely unexplored. This study presents the first analysis of repetitive DNAs in Hydnoraceae genomes, a plant family whose members are holoparasitic. Repetitive DNAs were identified and annotated de novo. Abundant transposable elements and 35S ribosomal DNA in the Hydnora visseri genome were reconstructed in silico. Their patterns of abundance and presence-absence were individually and comparatively analyzed. Both Hydnoraceae genera, Hydnora and Prosopanche, exhibit distinct repeatome profiles which challenge our current understanding of repeatome and rDNA evolution. The Hydnora genomes are dominated by long terminal repeat retrotransposons, while the Prosopanche genomes vary greatly in their repeat composition: Prosopanche bonacinae with a highly abundant single DNA transposon and Prosopanche panguanensis with over 15% 5S rDNA, compared to ≤ 0.1% in the Hydnora genomes. The repeat profiles align with the phylogeny, geographical distribution, and host shifts of the Hydnoraceae, indicating a potential role of repetitive DNAs in shaping Hydnoraceae genomes to adapt to the parasitic lifestyle.
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