Evidence map›Paper›PMID 31633794›Full record

ArticleMolecular biology and evolution2020

Purifying Selection in Corvids Is Less Efficient on Islands.

Verena E Kutschera, Jelmer W Poelstra, Fidel Botero-Castro, Nicolas Dussex, Neil J Gemmell, Gavin R Hunt, Michael G Ritchie, Christian Rutz, R Axel W Wiberg, Jochen B W Wolf

Open access · hybridAbstract readLetter
In one paragraph

Article in Molecular biology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 38 citations in OpenAlex.

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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

10 authors at 6 institutions in 6 countries.

Verena E KutscheraDepartment of Evolutionary Biology, Uppsala University, Uppsala, Sweden.
Jelmer W PoelstraBiology Department, Duke University, Durham, NC, USA.
Fidel Botero-CastroDivision of Evolutionary Biology, Faculty of Biology, LMU Munich, Planegg-Martinsried, Germany.
Nicolas DussexDepartment of Anatomy, University of Otago, Dunedin, New Zealand.
Neil J GemmellDepartment of Anatomy, University of Otago, Dunedin, New Zealand.
Gavin R HuntUnaffiliated.
Michael G RitchieCentre for Biological Diversity, School of Biology, University of St Andrews, St Andrews, United Kingdom.
Christian RutzCentre for Biological Diversity, School of Biology, University of St Andrews, St Andrews, United Kingdom.
R Axel W WibergCentre for Biological Diversity, School of Biology, University of St Andrews, St Andrews, United Kingdom.
Jochen B W WolfDepartment of Evolutionary Biology, Uppsala University, Uppsala, Sweden.
University of St Andrews · GBUppsala University · SEDuke University · USSwedish Museum of Natural History · SEUniversity of Otago · NZUrologische Klinik München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Theory predicts that deleterious mutations accumulate more readily in small populations. As a consequence, mutation load is expected to be elevated in species where life-history strategies and geographic or historical contingencies reduce the number of reproducing individuals. Yet, few studies have empirically tested this prediction using genome-wide data in a comparative framework. We collected whole-genome sequencing data for 147 individuals across seven crow species (Corvus spp.). For each species, we estimated the distribution of fitness effects of deleterious mutations and compared it with proxies of the effective population size Ne. Island species with comparatively smaller geographic range sizes had a significantly increased mutation load. These results support the view that small populations have an elevated risk of mutational meltdown, which may contribute to the higher extinction rates observed in island species.

Indexed as

MutationAnimalsEvolution, MolecularGenetic FitnessLife History TraitsModels, GeneticPasseriformesPhylogenyPopulation DensitySelection, GeneticWhole Genome Sequencingavian genomicscomparative analysisdistribution of fitness effectsmolecular evolutionmutation loadselection

Identifiers

PMID31633794
PMCPMC6993847
OpenAlexW2981927383

What OpenQuestion holds

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LicenceCC BY-NC
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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.