Evidence map›Paper›PMID 31951612›Full record

ArticlePLoS computational biology2020

Transient amplifiers of selection and reducers of fixation for death-Birth updating on graphs.

Benjamin Allen, Christine Sample, Robert Jencks, James Withers, Patricia Steinhagen, Lori Brizuela, Joshua Kolodny, Darren Parke, Gabor Lippner, Yulia A Dementieva

Abstract read
In one paragraph

Article in PLoS computational biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Mixed updating in structured populations.PLoS computational biology · 2026
    Article
  2. Colonization times in Moran process on graphs.PLoS computational biology · 2025
    Article
  3. Article
  4. Fixation times on directed graphs.PLoS computational biology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Categorizing update mechanisms for graph-structured metapopulations.Journal of the Royal Society, Interface · 2023
    Article
  9. Suppressors of fixation can increase average fitness beyond amplifiers of selection.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. The Moran process on 2-chromatic graphs.PLoS computational biology · 2020
    Article
  18. 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

10 authors.

Benjamin AllenDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.ORCID 0000-0002-9746-7613
Christine SampleDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.ORCID 0000-0002-5874-2256
Robert JencksDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.
James WithersDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.
Patricia SteinhagenDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.
Lori BrizuelaDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.
Joshua KolodnyDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.ORCID 0000-0003-3990-3103
Darren ParkeDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.
Gabor LippnerDepartment of Mathematics, Northeastern University, Boston, Massachusetts, United States of America.
Yulia A DementievaDepartment of Mathematics, Emmanuel College, Boston, Massachusetts, United States of America.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The spatial structure of an evolving population affects the balance of natural selection versus genetic drift. Some structures amplify selection, increasing the role that fitness differences play in determining which mutations become fixed. Other structures suppress selection, reducing the effect of fitness differences and increasing the role of random chance. This phenomenon can be modeled by representing spatial structure as a graph, with individuals occupying vertices. Births and deaths occur stochastically, according to a specified update rule. We study death-Birth updating: An individual is chosen to die and then its neighbors compete to reproduce into the vacant spot. Previous numerical experiments suggested that amplifiers of selection for this process are either rare or nonexistent. We introduce a perturbative method for this problem for weak selection regime, meaning that mutations have small fitness effects. We show that fixation probability under weak selection can be calculated in terms of the coalescence times of random walks. This result leads naturally to a new definition of effective population size. Using this and other methods, we uncover the first known examples of transient amplifiers of selection (graphs that amplify selection for a particular range of fitness values) for the death-Birth process. We also exhibit new families of "reducers of fixation", which decrease the fixation probability of all mutations, whether beneficial or deleterious.

Indexed as

Models, BiologicalModels, StatisticalPopulation DynamicsSelection, GeneticComputational BiologyGenetic DriftMutation

Identifiers

PMID31951612
PMCPMC6968840

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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.