ArticleNature communications2021
Bisection of the X chromosome disrupts the initiation of chromosome silencing during meiosis in Caenorhabditis elegans.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 11 citations in OpenAlex.
- Digital Chromosome Banding Reveals Distinct Spatiotemporal Dynamics and Sexual Dimorphism in Meiotic Silencing.bioRxiv : the preprint server for biology · 2026Article
- Different complex regulatory phenotypes underlie hybrid male sterility in divergent rodent crosses.Genetics · 2025Article
- Different complex regulatory phenotypes underlie hybrid male sterility in divergent rodent crosses.bioRxiv : the preprint server for biology · 2024Article
- Drosophila ring chromosomes interact with sisters and homologs to produce anaphase bridges in mitosis.Genetics · 2024Article
- Drosophila ring chromosomes interact with sisters and homologs to produce anaphase bridges in mitosis.bioRxiv : the preprint server for biology · 2024Article
- SIN-3 acts in distinct complexes to regulate the germline transcriptional program in Caenorhabditis elegans.Development (Cambridge, England) · 2023Article
- Article
- Alterations in synaptonemal complex coding genes and human infertility.International journal of biological sciences · 2022Review
- Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During meiosis, gene expression is silenced in aberrantly unsynapsed chromatin and in heterogametic sex chromosomes. Initiation of sex chromosome silencing is disrupted in meiocytes with sex chromosome-autosome translocations. To determine whether this is due to aberrant synapsis or loss of continuity of sex chromosomes, we engineered Caenorhabditis elegans nematodes with non-translocated, bisected X chromosomes. In early meiocytes of mutant males and hermaphrodites, X segments are enriched with euchromatin assembly markers and active RNA polymerase II staining, indicating active transcription. Analysis of RNA-seq data showed that genes from the X chromosome are upregulated in gonads of mutant worms. Contrary to previous models, which predicted that any unsynapsed chromatin is silenced during meiosis, our data indicate that unsynapsed X segments are transcribed. Therefore, our results suggest that sex chromosome chromatin has a unique character that facilitates its meiotic expression when its continuity is lost, regardless of whether or not it is synapsed.
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