Evidence map›Paper›PMID 33677563›Full record

ArticleMolecular biology and evolution2021

The Genomic Architecture of Adaptation to Larval Malnutrition Points to a Trade-off with Adult Starvation Resistance in Drosophila.

Tadeusz J Kawecki, Berra Erkosar, Cindy Dupuis, Brian Hollis, R Craig Stillwell, Martin Kapun

Open access · goldAbstract read
In one paragraph

Article in Molecular biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.6field-weighted citation impact, top 6% of its field
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

19 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Beyond Fixation: Persistent Genetic Variation Under Intense Selection.bioRxiv : the preprint server for biology · 2026
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  18. Nutritional phenotype underlines the performance trade-offs ofCurrent research in insect science · 2022
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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

6 authors at 3 institutions in 3 countries.

Tadeusz J KaweckiDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Berra ErkosarDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Cindy DupuisDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Brian HollisEPFL, Department of Systems Biology, Lausanne, Switzerland.
R Craig StillwellDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Martin KapunDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID 0000-0002-3810-0504
University of Lausanne · CHUniversity of South Carolina · USUniversity of Zurich · CH

Funding

Austrian Science Fund FWF P 32275
6 · The paper itself

Abstract

Periods of nutrient shortage impose strong selection on animal populations. Experimental studies of genetic adaptation to nutrient shortage largely focus on resistance to acute starvation at adult stage; it is not clear how conclusions drawn from these studies extrapolate to other forms of nutritional stress. We studied the genomic signature of adaptation to chronic juvenile malnutrition in six populations of Drosophila melanogaster evolved for 150 generations on an extremely nutrient-poor larval diet. Comparison with control populations evolved on standard food revealed repeatable genomic differentiation between the two set of population, involving >3,000 candidate SNPs forming >100 independently evolving clusters. The candidate genomic regions were enriched in genes implicated in hormone, carbohydrate, and lipid metabolism, including some with known effects on fitness-related life-history traits. Rather than being close to fixation, a substantial fraction of candidate SNPs segregated at intermediate allele frequencies in all malnutrition-adapted populations. This, together with patterns of among-population variation in allele frequencies and estimates of Tajima's D, suggests that the poor diet results in balancing selection on some genomic regions. Our candidate genes for tolerance to larval malnutrition showed a high overlap with genes previously implicated in acute starvation resistance. However, adaptation to larval malnutrition in our study was associated with reduced tolerance to acute adult starvation. Thus, rather than reflecting synergy, the shared genomic architecture appears to mediate an evolutionary trade-off between tolerances to these two forms of nutritional stress.

Indexed as

Biological EvolutionMalnutritionAdaptation, BiologicalAnimalsDrosophilaFemaleGenome, InsectLarvabalancing selectiondirectional selectionDrosophila melanogasterexperimental evolutiongenomicslarval malnutrition

Identifiers

PMID33677563
PMCPMC8233504
OpenAlexW3133995693

What OpenQuestion holds

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LicenceCC BY
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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.