Evidence map›Paper›PMID 27332138›Full record

ArticleBiophysical journal2016

Spatially Constrained Growth Enhances Conversional Meltdown.

Maxim O Lavrentovich, Mary E Wahl, David R Nelson, Andrew W Murray

Abstract read
In one paragraph

Article in Biophysical journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Tunable low-rate genomic recombination with Cre-Applied and environmental microbiology · 2026
    Article
  3. Article
  4. Article
  5. Impact of crowding on the diversity of expanding populations.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. Article
  7. Self-consistent dispersal puts tight constraints on the spatiotemporal organization of species-rich metacommunities.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  8. Stochastic establishment of β-lactam-resistantProceedings. Biological sciences · 2022
    Article
  9. Article
  10. Article
  11. Emergence of evolutionary driving forces in pattern-forming microbial populations.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Review
  12. Article
  13. Article
  14. Watching Populations Melt Down.Biophysical journal · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Maxim O LavrentovichDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: lavrentm@gmail.com.
Mary E WahlDepartment of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts.
David R NelsonDepartment of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts; Department of Physics, Harvard University, Cambridge, Massachusetts.
Andrew W MurrayDepartment of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts; FAS Center for Systems Biology, Harvard University, Cambridge, Massachusetts.

Funding

THEORETICAL ANALYSIS OF FUNCTIONAL MODULESP50GM068763 · NIGMS · HARVARD UNIVERSITY · PI BENENSON, YAAKOV · 2003 to 2012
$28.9M
NIGMS NIH HHS P50 GM068763
6 · The paper itself

Abstract

Cells that mutate or commit to a specialized function (differentiate) often undergo conversions that are effectively irreversible. Slowed growth of converted cells can act as a form of selection, balancing unidirectional conversion to maintain both cell types at a steady-state ratio. However, when one-way conversion is insufficiently counterbalanced by selection, the original cell type will ultimately be lost, often with negative impacts on the population's overall fitness. The critical balance between selection and conversion needed for preservation of unconverted cells and the steady-state ratio between cell types depends on the spatial circumstances under which cells proliferate. We present experimental data on a yeast strain engineered to undergo irreversible conversion: this synthetic system permits cell-type-specific fluorescent labeling and exogenous variation of the relative growth and conversion rates. We find that populations confined to grow on a flat agar surface are more susceptible than their well-mixed counterparts to fitness loss via a conversion-induced "meltdown." We then present analytical predictions for growth in several biologically relevant geometries-well-mixed liquid media, radially expanding two-dimensional colonies, and linear fronts in two dimensions-by employing analogies to the directed-percolation transition from nonequilibrium statistical physics. These simplified theories are consistent with the experimental results.

Indexed as

Genetic FitnessAgarAlgorithmsBiological EvolutionCell ProliferationComputer SimulationCulture MediaCycloheximideGenetic EngineeringModels, BiologicalSaccharomyces cerevisiaeAgarCulture MediaCycloheximide

Identifiers

PMID27332138
PMCPMC4919427

What OpenQuestion holds

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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.