Evidence map›Paper›PMID 23801028›Full record

ArticleBioEssays : news and reviews in molecular, cellular and developmental biology2013

Genome reduction as the dominant mode of evolution.

Yuri I Wolf, Eugene V Koonin

Abstract read
In one paragraph

Article in BioEssays : news and reviews in molecular, cellular and developmental biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 176 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
176citing papers in PubMed, 1 pooled it
–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

176 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. The Origin and Early Evolution of Fungi: Challenges, Inferences, and Principles.Annual review of cell and developmental biology · 2026
    Review
  3. Article
  4. Mating-Type System Analysis and Domestication ofJournal of fungi (Basel, Switzerland) · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
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  14. Bacterial sensor evolved by decreasing complexity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Phylogeographic analysis ofThe Journal of general virology · 2024
    Article
  19. Article
  20. Article

116 more citing papers are in PubMed but not listed here.

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

2 authors.

Yuri I WolfNational Center for Biotechnology Information, NLM, National Institutes of Health, Bethesda, MA, USA. wolf@ncbi.nlm.nih.gov
Eugene V Koonin

Funding

Comparative Analysis Of Completely Sequenced GenomesZIALM000073 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$43.1M
Intramural NIH HHS
6 · The paper itself

Abstract

A common belief is that evolution generally proceeds towards greater complexity at both the organismal and the genomic level, numerous examples of reductive evolution of parasites and symbionts notwithstanding. However, recent evolutionary reconstructions challenge this notion. Two notable examples are the reconstruction of the complex archaeal ancestor and the intron-rich ancestor of eukaryotes. In both cases, evolution in most of the lineages was apparently dominated by extensive loss of genes and introns, respectively. These and many other cases of reductive evolution are consistent with a general model composed of two distinct evolutionary phases: the short, explosive, innovation phase that leads to an abrupt increase in genome complexity, followed by a much longer reductive phase, which encompasses either a neutral ratchet of genetic material loss or adaptive genome streamlining. Quantitatively, the evolution of genomes appears to be dominated by reduction and simplification, punctuated by episodes of complexification.

Indexed as

Evolution, MolecularGenomeModels, GeneticArchaeaConserved SequenceEukaryotaGenomicsIntronsLikelihood Functionsancestral reconstructionarchaeagenome complexificationgenome reductionhorizontal gene transferorthologs

Identifiers

PMID23801028
PMCPMC3840695

What OpenQuestion holds

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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.