ArticleChromosoma2011
Immediate unidirectional epigenetic reprogramming of NORs occurs independently of rDNA rearrangements in synthetic and natural forms of a polyploid species Brassica napus.
Article in Chromosoma, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 61 citations in OpenAlex.
- Nucleolar dominance arises in Spartina homoploid hybrids and persists after allopolyploidization.The Plant journal : for cell and molecular biology · 2026Article
- Regulation of nucleolar dominance through allopolyploidization of hexaploid wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genomic Divergence Shaped the Genetic Regulation of Meiotic Homologous Recombination in Brassica Allopolyploids.Molecular biology and evolution · 2025Article
- Alternating between even and odd ploidy levels switches on and off the recombination control, even near the centromeres.The Plant cell · 2024Article
- Does the evolution of micromorphology accompany chromosomal changes on dysploid and polyploid levels in the Barnardia japonica complex (Hyacinthaceae)?BMC plant biology · 2023Article
- Genome balance and dosage effect drive allopolyploid formation inProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Uniparental expression of ribosomal RNA in ×Frontiers in plant science · 2023Article
- Hybridization and diversity of aquatic macrophyte Sparganium L. (Typhaceae) as revealed by high-throughput nrDNA sequencing.Scientific reports · 2022Article
- Structure and Methylation of 35S rDNA in AllopolyploidsFrontiers in plant science · 2022Article
- Gradual evolution of allopolyploidy in Arabidopsis suecica.Nature ecology & evolution · 2021Article
- Chromosome inheritance and meiotic stability in allopolyploid Brassica napus.G3 (Bethesda, Md.) · 2021Article
- Chromosome instabilities in resynthesized Brassica napus revealed by FISH.Journal of applied genetics · 2020Article
- Genome Size Variation and Comparative Genomics Reveal Intraspecific Diversity inFrontiers in plant science · 2020Article
- Competition of Parental Genomes in Plant Hybrids.Frontiers in plant science · 2020Review
- Ribosomal DNA loci derived from Brachypodium stacei are switched off for major parts of the life cycle of Brachypodium hybridum.Journal of experimental botany · 2019Article
- Gene Expression Changes During the Allo-/Deallopolyploidization Process ofFrontiers in genetics · 2019Article
- Genome-wide epigenetic variation among ash trees differing in susceptibility to a fungal disease.BMC genomics · 2018Article
- Natural variation in stress response gene activity in the allopolyploid Arabidopsis suecica.BMC genomics · 2017Article
- Dynamic nucleolar activity in wheat × Aegilops hybrids: evidence of C-genome dominance.Plant cell reports · 2017Article
- Amplifying recombination genome-wide and reshaping crossover landscapes in Brassicas.PLoS genetics · 2017Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dynamics of genome modification that occurred from the initial hybridization event to the stabilization of allopolyploid species remains largely unexplored. Here, we studied inheritance and expression of rDNA loci in the initial generations of Brassica napus allotetraploids (2n = 38, AACC) resynthesized from Brassica oleracea (2n = 18, CC) and B. rapa (2n = 20, AA) and compared the patterns to natural forms. Starting already from F1 generation, there was a strong uniparental silencing of B. oleracea genes. The epigenetic reprogramming was accompanied with immediate condensation of C-genome nucleolar organizer region (NOR) and progressive transgeneration hypermethylation of polymerase I promoters, mainly at CG sites. No such changes were observed in the A-genome NORs. Locus loss and gains affecting mainly non-NOR loci after the first allotetraploid meiosis did not influence established functional status of NORs. Collectively, epigenetic and genetic modifications in synthetic lines resemble events that accompanied formation of natural allopolyploid species.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.