Evidence map›Paper›PMID 23874220›Full record

ArticlePLoS genetics2013

Bacterial adaptation through loss of function.

Alison K Hottes, Lydia Freddolino, Anupama Khare, Zachary N Donnell, Julia C Liu, Saeed Tavazoie

Abstract read
In one paragraph

Article in PLoS genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 152 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
152citing papers in PubMed, 1 pooled it
–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

152 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
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  10. Emergence of multidrug-resistant ST876 serotype 14Frontiers in cellular and infection microbiology · 2026
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  13. Adaptive deletion of functional duplicate genes inbioRxiv : the preprint server for biology · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

92 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Alison K HottesLewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, USA.
Lydia Freddolino
Anupama Khare
Zachary N Donnell
Julia C Liu
Saeed Tavazoie

Funding

Systems biological interrogation of bacterial persistenceR01AI077562 · NIAID · PRINCETON UNIVERSITY · PI TAVAZOIE, SAEED F · 2010 to 2024
$6.4M
Towards a cognitive framework for understanding cellular behaviorDP1ES022578 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI TAVAZOIE, SAEED F · 2012 to 2012
$792k
NCCDPHP CDC HHS 8DP1ES022578NIAID NIH HHS 5R01AI077562NIAID NIH HHS R01 AI077562NIEHS NIH HHS DP1 ES022578
6 · The paper itself

Abstract

The metabolic capabilities and regulatory networks of bacteria have been optimized by evolution in response to selective pressures present in each species' native ecological niche. In a new environment, however, the same bacteria may grow poorly due to regulatory constraints or biochemical deficiencies. Adaptation to such conditions can proceed through the acquisition of new cellular functionality due to gain of function mutations or via modulation of cellular networks. Using selection experiments on transposon-mutagenized libraries of bacteria, we illustrate that even under conditions of extreme nutrient limitation, substantial adaptation can be achieved solely through loss of function mutations, which rewire the metabolism of the cell without gain of enzymatic or sensory function. A systematic analysis of similar experiments under more than 100 conditions reveals that adaptive loss of function mutations exist for many environmental challenges. Drawing on a wealth of examples from published articles, we detail the range of mechanisms through which loss-of-function mutations can generate such beneficial regulatory changes, without the need for rare, specific mutations to fine-tune enzymatic activities or network connections. The high rate at which loss-of-function mutations occur suggests that null mutations play an underappreciated role in the early stages of adaption of bacterial populations to new environments.

Indexed as

Directed Molecular EvolutionSelection, GeneticAdaptation, PhysiologicalBacteriaDNA Transposable ElementsEnvironmentFoodMutationDNA Transposable Elements

Identifiers

PMID23874220
PMCPMC3708842

What OpenQuestion holds

Textmetadata
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.