Evidence map›Paper›PMID 11983904›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Intron evolution as a population-genetic process.

Michael Lynch

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers.

0numbers the graph read from it
0cells of the map it votes in
134citing 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

134 citing papers in PubMed.

  1. Article
  2. Article
  3. Genome-Wide Analysis of Callose Synthase (CALS) Genes in Cabbage (International journal of molecular sciences · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Genomic Survey of LRR-RLK Genes inPlants (Basel, Switzerland) · 2024
    Article
  9. Article
  10. Retracing the evolution ofMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  11. Article
  12. Intron Regions as Genetic Markers for Population Genetic Investigations ofAnimals : an open access journal from MDPI · 2023
    Article
  13. Article
  14. Article
  15. Genome-wide identification of DnaJ gene family inFrontiers in plant science · 2023
    Article
  16. Transposable elements drive intron gain in diverse eukaryotes.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Article

74 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

1 author.

Michael LynchDepartment of Biology, Indiana University, Bloomington, IN 47405, USA. mlynch@bio.indiana.edu

Funding

COMPARATIVE MUTATION ACCUMULATION IN RHABDITID NEMATODESF32GM020887 · NIGMS · UNIVERSITY OF OREGON · PI BAER, CHARLES F · 2001 to 2003
$107k
NIGMS NIH HHS F32 GM020887NIGMS NIH HHS GM20887
6 · The paper itself

Abstract

Debate over the mechanisms responsible for the phylogenetic and genomic distribution of introns has proceeded largely without consideration of the population-genetic forces influencing the establishment and retention of novel genetic elements. However, a simple model incorporating random genetic drift and weak mutation pressure against intron-containing alleles yields predictions consistent with a diversity of observations: (i) the rarity of introns in unicellular organisms with large population sizes, and their expansion after the origin of multicellular organisms with reduced population sizes; (ii) the relationship between intron abundance and the stringency of splice-site requirements; (iii) the tendency for introns to be more numerous and longer in regions of low recombination; and (iv) the bias toward phase-0 introns. This study provides a second example of a mechanism whereby genomic complexity originates passively as a "pathological" response to small population size, and raises difficulties for the idea that ancient introns played a major role in the origin of genes by exon shuffling.

Indexed as

Genetics, PopulationIntronsModels, GeneticAllelesAnimalsCell DivisionExonsModels, StatisticalMutationRecombination, Genetic

Identifiers

PMID11983904
PMCPMC122912

What OpenQuestion holds

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Read underepoch 390

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.