Evidence map›Paper›PMID 37402824›Full record

ReviewHeredity2023

Intragenomic rDNA variation - the product of concerted evolution, mutation, or something in between?

Wencai Wang, Xianzhi Zhang, Sònia Garcia, Andrew R Leitch, Aleš Kovařík

Erratum issuedOpen access · hybridAbstract readReview
In one paragraph

Review in Heredity, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
29.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 74 citations in OpenAlex.

  1. Dynamic evolution and hierarchical regulation of rDNA in polyploid oat.The Plant journal : for cell and molecular biology · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Real-time PCR to targetFood chemistry. Molecular sciences · 2026
    Article
  10. Evidence for strong purifying selection of humanProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  11. Article
  12. Article
  13. Assessing Species Delimitation inMicroorganisms · 2026
    Article
  14. Genetic-Geographic-Chemical Framework ofJournal of fungi (Basel, Switzerland) · 2026
    Article
  15. Fish mapping of rdna and novel tandem repeats inComparative cytogenetics · 2026
    Article
  16. Article
  17. Article
  18. Article
  19. Regulation of nucleolar dominance through allopolyploidization of hexaploid wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
  20. From minor loci to major players? Satellite DNA diversification in Crepis sensu stricto.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 5 institutions in 4 countries.

Wencai WangScience and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
Xianzhi ZhangDepartment of Horticulture, College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.
Sònia GarciaInstitut Botànic de Barcelona, IBB (CSIC - Ajuntament de Barcelona), Barcelona, Spain.
Andrew R LeitchSchool of Biological and Behavioral Sciences, Queen Mary University of London, London, E1 4NS, UK.ORCID 0000-0001-8574-302X
Aleš KovaříkInstitute of Biophysics, Academy of Sciences of the Czech Republic, Brno, CZ-61200, Czech Republic. kovarik@ibp.cz.ORCID 0000-0003-2896-0698
Czech Academy of Sciences · CZGuangzhou University of Chinese Medicine · CNInstitut Botànic de Barcelona · ESQueen Mary University of London · GBZhongkai University of Agriculture and Engineering · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The classical model of concerted evolution states that hundreds to thousands of ribosomal DNA (rDNA) units undergo homogenization, making the multiple copies of the individual units more uniform across the genome than would be expected given mutation frequencies and gene redundancy. While the universality of this over 50-year-old model has been confirmed in a range of organisms, advanced high throughput sequencing techniques have also revealed that rDNA homogenization in many organisms is partial and, in rare cases, even apparently failing. The potential underpinning processes leading to unexpected intragenomic variation have been discussed in a number of studies, but a comprehensive understanding remains to be determined. In this work, we summarize information on variation or polymorphisms in rDNAs across a wide range of taxa amongst animals, fungi, plants, and protists. We discuss the definition and description of concerted evolution and describe whether incomplete concerted evolution of rDNAs predominantly affects coding or non-coding regions of rDNA units and if it leads to the formation of pseudogenes or not. We also discuss the factors contributing to rDNA variation, such as interspecific hybridization, meiotic cycles, rDNA expression status, genome size, and the activity of effector genes involved in genetic recombination, epigenetic modifications, and DNA editing. Finally, we argue that a combination of approaches is needed to target genetic and epigenetic phenomena influencing incomplete concerted evolution, to give a comprehensive understanding of the evolution and functional consequences of intragenomic variation in rDNA.

Indexed as

Genetic VariationPolymorphism, GeneticAnimalsDNA, RibosomalEvolution, MolecularFungiMutationPhylogenyDNA, Ribosomal

Identifiers

PMID37402824
PMCPMC10462631
OpenAlexW4383186436

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.