ArticleBMC plant biology2017
Transposable elements generate population-specific insertional patterns and allelic variation in genes of wild emmer wheat (Triticum turgidum ssp. dicoccoides).
Article in BMC plant biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 24 citations in OpenAlex.
- Wild Emmer (Life (Basel, Switzerland) · 2025Article
- Transcriptome variations in hybrids of wild emmer wheat (Triticum turgidum ssp. dicoccoides).BMC plant biology · 2024Article
- Genome-wide identification and expression analysis of phytochrome gene family in Aikang58 wheat (Frontiers in plant science · 2024Article
- Whole-genome resequencing-based characterization of a durum wheat landrace showing similarity to 'Senatore Cappelli'.PloS one · 2023Article
- High genetic and epigenetic variation of transposable elements: Potential drivers to rapid adaptive evolution for the noxious invasive weedEcology and evolution · 2021Article
- Transcriptional activity of transposable elements along an elevational gradient in Arabidopsis arenosa.Mobile DNA · 2021Article
- Where the Wild Things Are: Transposable Elements as Drivers of Structural and Functional Variations in the Wheat Genome.Frontiers in plant science · 2020Review
- The Evolutionary Dynamics of a Novel Miniature Transposable Element in the Wheat Genome.Frontiers in plant science · 2020Article
- Copy Number Variation of Transposable Elements inPlants (Basel, Switzerland) · 2019Article
- A novel miniature transposon-like element discovered in the coding sequence of a gene that encodes for 5-formyltetrahydrofolate in wheat.BMC plant biology · 2019Article
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Authors and funding
5 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundNatural populations of the tetraploid wild emmer wheat (genome AABB) were previously shown to demonstrate eco-geographically structured genetic and epigenetic diversity. Transposable elements (TEs) might make up a significant part of the genetic and epigenetic variation between individuals and populations because they comprise over 80% of the wild emmer wheat genome. In this study, we performed detailed analyses to assess the dynamics of transposable elements in 50 accessions of wild emmer wheat collected from 5 geographically isolated sites. The analyses included: the copy number variation of TEs among accessions in the five populations, population-unique insertional patterns, and the impact of population-unique/specific TE insertions on structure and expression of genes.
resultsWe assessed the copy numbers of 12 TE families using real-time quantitative PCR, and found significant copy number variation (CNV) in the 50 wild emmer wheat accessions, in a population-specific manner. In some cases, the CNV difference reached up to 6-fold. However, the CNV was TE-specific, namely some TE families showed higher copy numbers in one or more populations, and other TE families showed lower copy numbers in the same population(s). Furthermore, we assessed the insertional patterns of 6 TE families using transposon display (TD), and observed significant population-specific insertional patterns. The polymorphism levels of TE-insertional patterns reached 92% among all wild emmer wheat accessions, in some cases. In addition, we observed population-specific/unique TE insertions, some of which were located within or close to protein-coding genes, creating allelic variations in a population-specific manner. We also showed that those genes are differentially expressed in wild emmer wheat.
conclusionsFor the first time, this study shows that TEs proliferate in wild emmer wheat in a population-specific manner, creating new alleles of genes, which contribute to the divergent evolution of homeologous genes from the A and B subgenomes.
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