Evidence map›Paper›PMID 30722720›Full record

ArticleRNA biology2019

CRISPR evolution and bacteriophage persistence in the context of population bottlenecks.

Jack Common, Edze R Westra

Abstract read
In one paragraph

Article in RNA biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Population size impacts host-pathogen coevolution.Proceedings. Biological sciences · 2021
    Article
  4. The ecology and evolution of microbial CRISPR-Cas adaptive immune systems.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Article
  5. 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

2 authors.

Jack Commona ESI, Biosciences , University of Exeter , Penryn , UK.ORCID 0000-0003-4639-1193
Edze R Westraa ESI, Biosciences , University of Exeter , Penryn , UK.ORCID 0000-0003-4396-0354

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Population bottlenecks often cause strong reductions in genetic diversity and alter population structure. In the context of host-parasite interactions, bottlenecks could in theory benefit either the host or the pathogen. We predicted that bottlenecking of bacterial populations that evolve CRISPR immunity against bacteriophages (phage) would benefit the pathogen, because CRISPR spacer diversity can rapidly drive phages extinct. To test this, we bottlenecked populations of bacteria and phage, tracking phage persistence and the evolution of bacterial resistance mechanisms. Contrary to our prediction, bottlenecking worked in the advantage of the host. With some possible exceptions, this effect was not caused by CRISPR immunity. This host benefit is consistent with a dilution effect disproportionately affecting phage. This study provides further insight into how bottlenecking influences bacteria-phage dynamics, the role of dilution in bacteria-phage interactions, and the evolution of host immune systems.

Indexed as

Evolution, MolecularBacteriophagesCRISPR-Cas SystemsHost-Pathogen InteractionsbacteriophagebottlenecksCRISPR-Casdilution effectdiversity-generating mechanismshost-pathogen coevolution

Identifiers

PMID30722720
PMCPMC6546380

What OpenQuestion holds

Textmetadata
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.