Evidence map›Paper›PMID 20055996›Full record

ArticleBMC genomics2010

Sex-dimorphic gene expression and ineffective dosage compensation of Z-linked genes in gastrulating chicken embryos.

Shaobing O Zhang, Sachin Mathur, Gaye Hattem, Olivier Tassy, Olivier Pourquié

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 69 citations in OpenAlex.

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  14. Avian sex, sex chromosomes, and dosage compensation in the age of genomics.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014
    Review
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  19. Cdc42 deficiency causes ciliary abnormalities and cystic kidneys.Journal of the American Society of Nephrology : JASN · 2013
    Article
  20. Review
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

5 authors at 4 institutions in 2 countries.

Shaobing O ZhangStowers Institute for Medical Research, 1000 E, 50th Street, Kansas City, MO 64110, USA.
Sachin Mathur
Gaye Hattem
Olivier Tassy
Olivier Pourquié
Stowers Institute for Medical Research · USCentre National de la Recherche Scientifique · FRInserm · FRUniversity of Missouri–Kansas City · US

Funding

Molecular Analysis of the Segmentation ClockR01HD043158 · NICHD · STOWERS INSTITUTE FOR MEDICAL RESEARCH · PI POURQUIE, OLIVIER · 2003 to 2011
$2.6M
Howard Hughes Medical InstituteNICHD NIH HHS R02HD043158
6 · The paper itself

Abstract

backgroundConsiderable progress has been made in our understanding of sex determination and dosage compensation mechanisms in model organisms such as C. elegans, Drosophila and M. musculus. Strikingly, the mechanism involved in sex determination and dosage compensation are very different among these three model organisms. Birds present yet another situation where the heterogametic sex is the female. Sex determination is still poorly understood in birds and few key determinants have so far been identified. In contrast to most other species, dosage compensation of bird sex chromosomal genes appears rather ineffective.

resultsBy comparing microarrays from microdissected primitive streak from single chicken embryos, we identified a large number of genes differentially expressed between male and female embryos at a very early stage (Hamburger and Hamilton stage 4), long before any sexual differentiation occurs. Most of these genes are located on the Z chromosome, which indicates that dosage compensation is ineffective in early chicken embryos. Gene ontology analyses, using an enhanced annotation tool for Affymetrix probesets of the chicken genome developed in our laboratory (called Manteia), show that among these male-biased genes found on the Z chromosome, more than 20 genes play a role in sex differentiation.

conclusionsThese results corroborate previous studies demonstrating the rather inefficient dosage compensation for Z chromosome in birds and show that this sexual dimorphism in gene regulation is observed long before the onset of sexual differentiation. These data also suggest a potential role of non-compensated Z-linked genes in somatic sex differentiation in birds.

Indexed as

Dosage Compensation, GeneticGene Expression Regulation, DevelopmentalSex CharacteristicsAnimalsChick EmbryoFemaleGastrulationGene Expression ProfilingMaleOligonucleotide Array Sequence AnalysisSex Chromosomes

Identifiers

PMID20055996
PMCPMC2821371
OpenAlexW2131226578

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Read underepoch 390

Registered trials

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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.