ArticleThe Plant cell2014
Asymmetric epigenetic modification and elimination of rDNA sequences by polyploidization in wheat.
Article in The Plant cell, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed, 91 citations in OpenAlex.
- Dynamic evolution and hierarchical regulation of rDNA in polyploid oat.The Plant journal : for cell and molecular biology · 2026Article
- Comparative cytogenomic characterization of 18 wheat core collection cultivars from six continents using triple-color PLOP-FISH.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Chromosomal collinearity drives meiotic instability in Brassica autoallopolyploid.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Toward a model of repeat-driven chromosomal fragility in Triticeae: an integrated structural omics perspective.BMC genomics · 2026Review
- Regulation of Pre-rRNA Processing in Plant: Mechanisms, Plasticity, and Developmental Implications.Plants (Basel, Switzerland) · 2026Review
- Nucleolar dominance arises in Spartina homoploid hybrids and persists after allopolyploidization.The Plant journal : for cell and molecular biology · 2026Article
- Genomics in wheat improvement: Progress and perspectives.The plant genome · 2026Review
- Chromosome-specific painting provides insights into the karyotype evolutionary direction and trajectory in the genusHorticulture research · 2026Article
- Asymmetric evolution of satellite DNA on homologous and homeologous chromosomes in allotetraploid Narenga porphyrocoma.BMC plant biology · 2026Article
- Regulation of nucleolar dominance through allopolyploidization of hexaploid wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Distinct evolutionary trajectories of subgenomic centromeres in polyploid wheat.Genome biology · 2025Article
- Characterization and comparative analysis of the complete mitochondrial genome of Phlomoides rotata, a traditional Tibetan medicinal plant.BMC genomics · 2025Article
- Does time matter? Intraspecific diversity of ribosomal RNA genes in lineages of the allopolyploid model grass Brachypodium hybridum with different evolutionary ages.BMC plant biology · 2024Article
- Chromosome-level genome assemblies reveal genome evolution of an invasive plant Phragmites australis.Communications biology · 2024Article
- Uniparental silencing of 5S rRNA genes in plant allopolyploids - insights from Cardamine (Brassicaceae).The Plant journal : for cell and molecular biology · 2024Article
- Transcriptional Silencing of 35S rDNA inInternational journal of molecular sciences · 2024Article
- Cytological analysis of the diploid-like inheritance of newly synthesized allotetraploid wheat.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
- Intragenomic rDNA variation - the product of concerted evolution, mutation, or something in between?Heredity · 2023Review
- Duplicate Genes Contribute to Variability in Abiotic Stress Resistance in Allopolyploid Wheat.Plants (Basel, Switzerland) · 2023Review
- Epigenetic Landscape Is Largely Shaped by Diversiform Transposons inInternational journal of molecular sciences · 2023Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
rRNA genes consist of long tandem repeats clustered on chromosomes, and their products are important functional components of the ribosome. In common wheat (Triticum aestivum), rDNA loci from the A and D genomes were largely lost during the evolutionary process. This biased DNA elimination may be related to asymmetric transcription and epigenetic modifications caused by the polyploid formation. Here, we observed both sets of parental nucleolus organizing regions (NORs) were expressed after hybridization, but asymmetric silencing of one parental NOR was immediately induced by chromosome doubling, and reversing the ploidy status could not reactivate silenced NORs. Furthermore, increased CHG and CHH DNA methylation on promoters was accompanied by asymmetric silencing of NORs. Enrichment of H3K27me3 and H3K9me2 modifications was also observed to be a direct response to increased DNA methylation and transcriptional inactivation of NOR loci. Both A and D genome NOR loci with these modifications started to disappear in the S4 generation and were completely eliminated by the S7 generation in synthetic tetraploid wheat. Our results indicated that asymmetric epigenetic modification and elimination of rDNA sequences between different donor genomes may lead to stable allopolyploid wheat with increased differentiation and diversity.
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