Evidence map›Paper›PMID 40063618›Full record

ArticlePLoS genetics2025

Dynamics of X chromosome hyper-expression and inactivation in male tissues during stick insect development.

Jelisaveta Djordjevic, Patrick Tran Van, William Toubiana, Marjorie Labédan, Zoé Dumas, Jean-Marc Aury, Corinne Cruaud, Benjamin Istace, Karine Labadie, Benjamin Noel and 2 more

Abstract read
In one paragraph

Article in PLoS genetics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
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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

12 authors.

Jelisaveta DjordjevicDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0002-7973-0174
Patrick Tran VanDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0003-4236-8412
William ToubianaDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0002-4390-2165
Marjorie LabédanDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0002-2643-1277
Zoé DumasDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0001-9014-8356
Jean-Marc AuryGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France.ORCID https://orcid.org/0000-0003-1718-3010
Corinne CruaudGenoscope, Institut François Jacob, CEA, Université Paris-Saclay, Evry, France.ORCID https://orcid.org/0000-0002-4752-7278
Benjamin IstaceGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France.ORCID https://orcid.org/0000-0003-1042-4803
Karine LabadieGenoscope, Institut François Jacob, CEA, Université Paris-Saclay, Evry, France.ORCID https://orcid.org/0000-0001-7467-8509
Benjamin NoelGénomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France.ORCID https://orcid.org/0000-0002-5830-3253
Darren J ParkerDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0003-4027-7779
Tanja SchwanderDepartment of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.ORCID https://orcid.org/0000-0003-1945-5374

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Differentiated sex chromosomes are frequently associated with major transcriptional changes: the evolution of dosage compensation (DC) to equalize gene expression between the sexes and the establishment of meiotic sex chromosome inactivation (MSCI). Our study investigates the mechanisms and developmental dynamics of dosage compensation and meiotic sex chromosome inactivation in the stick insect species T. poppense. Stick insects are characterized by XX/X0 sex determination, with an X chromosome that likely evolved prior to the diversification of insects over 450 Mya. We generated a chromosome-level genome assembly and analyzed gene expression from various tissues (brain, gut, antennae, leg, and reproductive tract) across developmental stages in both sexes. Our results show that complete dosage compensation is maintained in male somatic tissues throughout development, mediated by upregulation of the single X chromosome. Contrarily, in male reproductive tissues, dosage compensation is present only in the early nymphal stages. As males reach the 4th nymphal stage and adulthood, X-linked gene expression diminishes, coinciding with the onset of meiosis and MSCI, which involves classical silencing histone modifications. These findings reveal the dynamic regulation of X-linked gene expression in T. poppense, and suggest that reduced X-expression in insect testes is generally driven by MSCI rather than an absence of dosage compensation mechanisms. Our work provides critical insights into sex chromosome evolution and the complex interplay of dosage compensation and MSCI across tissues and developmental stages.

Indexed as

InsectaX ChromosomeX Chromosome InactivationAnimalsDosage Compensation, GeneticFemaleGene Expression Regulation, DevelopmentalGenes, X-LinkedMaleMeiosisSex Determination Processes

Identifiers

PMID40063618
PMCPMC11957559

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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.