Evidence map›Paper›PMID 22997237›Full record

ArticleGenetics2012

Trade-off between selection for dosage compensation and masculinization on the avian Z chromosome.

Alison E Wright, Hooman K Moghadam, Judith E Mank

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 73 citations in OpenAlex.

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  7. Are plant and animal sex chromosomes really all that different?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 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

3 authors at 2 institutions in 1 country.

Alison E WrightDepartment of Zoology, Edward Grey Institute, University of Oxford, Oxford OX1 3PS, United Kingdom. Alison.e.wright@ucl.ac.uk
Hooman K Moghadam
Judith E Mank
University College London · GBUniversity of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H002006/1European Research Council 260233Medical Research Council G0900747Medical Research Council G0900747 91070Wellcome Trust 090532/Z09/Z
6 · The paper itself

Abstract

Following the suppression of recombination, gene expression levels decline on the sex-limited chromosome, and this can lead to selection for dosage compensation in the heterogametic sex to rebalance average expression from the X or Z chromosome with average autosomal expression. At the same time, due to their unequal pattern of inheritance in males and females, the sex chromosomes are subject to unbalanced sex-specific selection, which contributes to a nonrandom distribution of sex-biased genes compared to the remainder of the genome. These two forces act against each other, and the relative importance of each is currently unclear. The Gallus gallus Z chromosome provides a useful opportunity to study the importance and trade-offs between sex-specific selection and dosage compensation in shaping the evolution of the genome as it shows incomplete dosage compensation and is also present twice as often in males than females, and therefore predicted to be enriched for male-biased genes. Here, we refine our understanding of the evolution of the avian Z chromosome, and show that multiple strata formed across the chromosome over ∼130 million years. We then use this evolutionary history to examine the relative strength of selection for sex chromosome dosage compensation vs. the cumulative effects of masculinizing selection on gene expression. We find that male-biased expression increases over time, indicating that selection for dosage compensation is relatively less important than masculinizing selection in shaping Z chromosome gene expression.

Indexed as

Dosage Compensation, GeneticSelection, GeneticSex ChromosomesAnimalsBiological EvolutionBirdsChickensChromosome MappingFemaleGene ExpressionMale

Identifiers

PMID22997237
PMCPMC3512148
OpenAlexW2122569961

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.