ArticleGenome biology and evolution2018
Recent Activity in Expanding Populations and Purifying Selection Have Shaped Transposable Element Landscapes across Natural Accessions of the Mediterranean Grass Brachypodium distachyon.
Article in Genome biology and evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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38 citing papers in PubMed, 86 citations in OpenAlex.
- Transposon expansion is associated with reorganization of small RNA and DNA methylation landscapes in the morphologically minimal angiosperm Wolffia brasiliensis.The Plant journal : for cell and molecular biology · 2026Article
- A reference-free pipeline for detecting shared transposable elements from pan-genomes to retrace their dynamics in a species.Genome biology · 2026Article
- Factors determining chromosomal localization of transposable elements in plants.Plant biology (Stuttgart, Germany) · 2025Review
- Evolutionary Consequences of Unusually Large Pericentric TE-rich Regions in the Genome of a Neotropical Fig Wasp.Genome biology and evolution · 2025Article
- Ecological Niche Adaptations Influence Transposable Element Dynamics in Pollinating and Non-Pollinating Fig Wasps.Ecology and evolution · 2025Article
- The Demographic History of Populations and Genomic Imprinting have Shaped the Transposon Patterns in Arabidopsis lyrata.Molecular biology and evolution · 2025Article
- Article
- Holocentric repeat landscapes: From micro-evolutionary patterns to macro-evolutionary associations with karyotype evolution.Molecular ecology · 2024Article
- Article
- Polygenic architecture of flowering time and its relationship with local environments in the grass Brachypodium distachyon.Genetics · 2024Article
- The evolution of transposable elements ineLife · 2024Article
- Forces driving transposable element load variation during Arabidopsis range expansion.The Plant cell · 2024Article
- Transposition of HOPPLA in siRNA-deficient plants suggests a limited effect of the environment on retrotransposon mobility in Brachypodium distachyon.PLoS genetics · 2024Article
- A systematic screen for co-option of transposable elements across the fungal kingdom.Mobile DNA · 2024Article
- All families of transposable elements were active in the recent wheat genome evolution and polyploidy had no impact on their activity.The plant genome · 2023Article
- Multiple origins, one evolutionary trajectory: gradual evolution characterizes distinct lineages of allotetraploid Brachypodium.Genetics · 2023Article
- Recent transposable element bursts are associated with the proximity to genes in a fungal plant pathogen.PLoS pathogens · 2023Article
- Review
- Experimentally heat-induced transposition increases drought tolerance in Arabidopsis thaliana.The New phytologist · 2022Article
- Migrators within migrators: exploring transposable element dynamics in the monarch butterfly, Danaus plexippus.Mobile DNA · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transposable element (TE) activity has emerged as a major cause of variation in genome size and structure among species. To what extent TEs contribute to genetic variation and divergence within species, however, is much less clear, mainly because population genomic data have so far only been available for the classical model organisms. In this study, we use the annual Mediterranean grass Brachypodium distachyon to investigate TE dynamics in natural populations. Using whole-genome sequencing data for 53 natural accessions, we identified more than 5,400 TE polymorphisms across the studied genomes. We found, first, that while population bottlenecks and expansions have shaped genetic diversity in B. distachyon, these events did not lead to lineage-specific activations of TE families, as observed in other species. Instead, the same families have been active across the species range and TE activity is homogeneous across populations, indicating the presence of conserved regulatory mechanisms. Second, almost half of the TE insertion polymorphisms are accession-specific, most likely because of recent activity in expanding populations and the action of purifying selection. And finally, although TE insertion polymorphisms are underrepresented in and around genes, more than 1,000 of them occur in genic regions and could thus contribute to functional divergence. Our study shows that while TEs in B. distachyon are "well-behaved" compared with TEs in other species with larger genomes, they are an abundant source of lineage-specific genetic variation and may play an important role in population divergence and adaptation.
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