Evidence map›Paper›PMID 33051001›Full record

ArticleeLife2020

Diffusion vs. direct transport in the precision of morphogen readout.

Sean Fancher, Andrew Mugler

Abstract readComparative Study
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
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.

Sean FancherDepartment of Physics and Astronomy, Purdue University, West Lafayette, United States.ORCID 0000-0002-8701-192X
Andrew MuglerDepartment of Physics and Astronomy, Purdue University, West Lafayette, United States.ORCID 0000-0001-9367-7026

Funding

National Science Foundation PHY-1945018Simons Foundation 376198Simons Foundation 568888
6 · The paper itself

Abstract

Morphogen profiles allow cells to determine their position within a developing organism, but not all morphogen profiles form by the same mechanism. Here, we derive fundamental limits to the precision of morphogen concentration sensing for two canonical mechanisms: the diffusion of morphogen through extracellular space and the direct transport of morphogen from source cell to target cell, for example, via cytonemes. We find that direct transport establishes a morphogen profile without adding noise in the process. Despite this advantage, we find that for sufficiently large values of profile length, the diffusion mechanism is many times more precise due to a higher refresh rate of morphogen molecules. We predict a profile lengthscale below which direct transport is more precise, and above which diffusion is more precise. This prediction is supported by data from a wide variety of morphogens in developing

Indexed as

AnimalsBiological TransportDiffusionDrosophila melanogasterExtracellular SpaceIntercellular Signaling Peptides and ProteinsModels, BiologicalMorphogenesisZebrafishIntercellular Signaling Peptides and ProteinsDrosophilafundamental limitsmorphogenphysics of living systemssensory precisionzebrafish

Identifiers

PMID33051001
PMCPMC7641583

What OpenQuestion holds

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LicenceCC BY
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.