Evidence map›Paper›PMID 22607633›Full record

SynthesisBMC evolutionary biology2012

Demasculinization of the Anopheles gambiae X chromosome.

Kalle Magnusson, Gareth J Lycett, Antonio M Mendes, Amy Lynd, Philippos-Aris Papathanos, Andrea Crisanti, Nikolai Windbichler

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in BMC evolutionary biology, 2012. 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
3.9field-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, 41 citations in OpenAlex.

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  18. New genes as drivers of phenotypic evolution.Nature reviews. Genetics · 2013
    Review
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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

7 authors at 2 institutions in 2 countries.

Kalle MagnussonImperial College London, Department of Life Sciences, Imperial College Road, London, SW7 2AZ, UK.
Gareth J Lycett
Antonio M Mendes
Amy Lynd
Philippos-Aris Papathanos
Andrea Crisanti
Nikolai Windbichler
Imperial College London · GBLiverpool School of Tropical Medicine · GB

Funding

Biotechnology and Biological Sciences Research Council BB/F021933/1
6 · The paper itself

Abstract

backgroundIn a number of organisms sex-biased genes are non-randomly distributed between autosomes and the shared sex chromosome X (or Z). Studies on Anopheles gambiae have produced conflicting results regarding the underrepresentation of male-biased genes on the X chromosome and it is unclear to what extent sexual antagonism, dosage compensation or X-inactivation in the male germline, the evolutionary forces that have been suggested to affect the chromosomal distribution of sex-biased genes, are operational in Anopheles.

resultsWe performed a meta-analysis of sex-biased gene expression in Anopheles gambiae which provides evidence for a general underrepresentation of male-biased genes on the X-chromosome that increased in significance with the observed degree of sex-bias. A phylogenomic comparison between Drosophila melanogaster, Aedes aegypti and Culex quinquefasciatus also indicates that the Anopheles X chromosome strongly disfavours the evolutionary conservation of male-biased expression and that novel male-biased genes are more likely to arise on autosomes. Finally, we demonstrate experimentally that transgenes situated on the Anopheles gambiae X chromosome are transcriptionally silenced in the male germline.

conclusionThe data presented here support the hypothesis that the observed demasculinization of the Anopheles X chromosome is driven by X-chromosome inactivation in the male germline and by sexual antagonism. The demasculinization appears to be the consequence of a loss of male-biased expression, rather than a failure in the establishment or the extinction of male-biased genes.

Indexed as

Evolution, MolecularX Chromosome InactivationAnimalsAnophelesCulexDrosophila melanogasterFemaleGene Expression ProfilingGene SilencingGenes, InsectGenomicsGerm CellsMaleOligonucleotide Array Sequence AnalysisPhylogenyTransgenes

Identifiers

PMID22607633
PMCPMC3428665
OpenAlexW2124354102

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.