Evidence map›Paper›PMID 19749981›Full record

ArticlePLoS genetics2009

The evolutionary origin of man can be traced in the layers of defunct ancestral alpha satellites flanking the active centromeres of human chromosomes.

Valery A Shepelev, Alexander A Alexandrov, Yuri B Yurov, Ivan A Alexandrov

Abstract read
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Article in PLoS genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

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0cells of the map it votes in
53citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

53 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. A global view of human centromere variation and evolution.bioRxiv : the preprint server for biology · 2025
    Article
  6. The dynamic centromere.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Complex genetic variation in nearly complete human genomes.bioRxiv : the preprint server for biology · 2024
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. The variation and evolution of complete human centromeres.bioRxiv : the preprint server for biology · 2023
    Article
  20. Review
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Valery A ShepelevInstitute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia.
Alexander A Alexandrov
Yuri B Yurov
Ivan A Alexandrov

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alpha satellite domains that currently function as centromeres of human chromosomes are flanked by layers of older alpha satellite, thought to contain dead centromeres of primate progenitors, which lost their function and the ability to homogenize satellite repeats, upon appearance of a new centromere. Using cladistic analysis of alpha satellite monomers, we elucidated complete layer patterns on chromosomes 8, 17, and X and related them to each other and to primate alpha satellites. We show that discrete and chronologically ordered alpha satellite layers are partially symmetrical around an active centromere and their succession is partially shared in non-homologous chromosomes. The layer structure forms a visual representation of the human evolutionary lineage with layers corresponding to ancestors of living primates and to entirely fossil taxa. Surprisingly, phylogenetic comparisons suggest that alpha satellite arrays went through periods of unusual hypermutability after they became "dead" centromeres. The layer structure supports a model of centromere evolution where new variants of a satellite repeat expanded periodically in the genome by rounds of inter-chromosomal transfer/amplification. Each wave of expansion covered all or many chromosomes and corresponded to a new primate taxon. Complete elucidation of the alpha satellite phylogenetic record would give a unique opportunity to number and locate the positions of major extinct taxa in relation to human ancestors shared with extant primates. If applicable to other satellites in non-primate taxa, analysis of centromeric layers could become an invaluable tool for phylogenetic studies.

Indexed as

DNA, SatelliteEvolution, MolecularAnimalsCentromereChromosomes, HumanHumansMaleMolecular Sequence DataPhylogenyPrimatesDNA, Satellite

Identifiers

PMID19749981
PMCPMC2729386

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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.