Evidence map›Paper›PMID 35416568›Full record

ReviewChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2022

Mendelian nightmares: the germline-restricted chromosome of songbirds.

Pavel Borodin, Augustin Chen, Wolfgang Forstmeier, Simone Fouché, Lyubov Malinovskaya, Yifan Pei, Radka Reifová, Francisco J Ruiz-Ruano, Stephen A Schlebusch, Manuelita Sotelo-Muñoz and 3 more

Abstract readReview
In one paragraph

Review in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Review
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  6. B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Biparental inheritance of germline-specific chromosomes in the sea lamprey and their roles in oocytes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Pavel BorodinSiberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia.
Augustin ChenDepartment of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden.ORCID 0000-0002-2016-3048
Wolfgang ForstmeierDepartment of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Straße, 82319, Seewiesen, Germany. forstmeier@orn.mpg.de.ORCID 0000-0002-5984-8925
Simone FouchéDepartment of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden.ORCID 0000-0003-0601-6073
Lyubov MalinovskayaSiberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia.
Yifan PeiDepartment of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Straße, 82319, Seewiesen, Germany.ORCID 0000-0002-2411-4454
Radka ReifováDepartment of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic. radka.reifova@natur.cuni.cz.ORCID 0000-0001-5852-5174
Francisco J Ruiz-RuanoDepartment of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden.ORCID 0000-0002-5391-301X
Stephen A SchlebuschDepartment of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic.ORCID 0000-0003-2355-2652
Manuelita Sotelo-MuñozDepartment of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44, Prague, Czech Republic.ORCID 0000-0002-1654-7292
Anna TorgashevaSiberian Department, Russian Academy of Sciences, Institute of Cytology and Genetics, Prospekt Akademika Lavrent'yeva 10, 630090, Novosibirsk, Russia. torgasheva@bionet.nsc.ru.ORCID 0000-0002-8933-8336
Niki VontzouSchool of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TU, UK.
Alexander SuhDepartment of Organismal Biology - Systematic Biology, Evolutionary Biology Centre, Uppsala University, Science for Life Laboratory, 752 36, Uppsala, Sweden. A.Suh@uea.ac.uk.ORCID 0000-0002-8979-9992

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Germline-restricted chromosomes (GRCs) are accessory chromosomes that occur only in germ cells. They are eliminated from somatic cells through programmed DNA elimination during embryo development. GRCs have been observed in several unrelated animal taxa and show peculiar modes of non-Mendelian inheritance and within-individual elimination. Recent cytogenetic and phylogenomic evidence suggests that a GRC is present across the species-rich songbirds, but absent in non-passerine birds, implying that over half of all 10,500 bird species have extensive germline/soma genome differences. Here, we review recent insights gained from genomic, transcriptomic, and cytogenetic approaches with regard to the genetic content, phylogenetic distribution, and inheritance of the songbird GRC. While many questions remain unsolved in terms of GRC inheritance, elimination, and function, we discuss plausible scenarios and future directions for understanding this widespread form of programmed DNA elimination.

Indexed as

SongbirdsAnimalsChromosomesDNADreamsGerm CellsPhylogenyDNAB chromosomeChromosome eliminationGermline-restricted chromosomeGermline/soma genome differenceNon-Mendelian inheritance

Identifiers

PMID35416568
PMCPMC9508068

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Registered trials

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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.