Dosage compensation articles within Nature

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  • Letter
    | Open Access

    Multiple transcriptome approaches, including single-cell sequencing, demonstrate that escape from X chromosome inactivation is widespread and occasionally variable between cells, chromosomes, and tissues, resulting in sex-biased expression of at least 60 genes and potentially contributing to sex-specific differences in health and disease.

    • Taru Tukiainen
    • , Alexandra-Chloé Villani
    •  & Daniel G. MacArthur

  • Letter |

    An in-depth analysis of the structure, chromatin accessibility and expression status of the mouse inactive X (Xi) chromosome provides insights into the regulation of Xi chromosome structure, its dependence on the macrosatellite DXZ4 region, the Xist non-coding RNA, as well as the basis for topologically associating domain (TAD) formation on the Xi.

    • Luca Giorgetti
    • , Bryan R. Lajoie
    •  & Job Dekker

  • Letter |

    Genome-wide chromosome conformation capture analysis in C. elegans reveals that the dosage compensation complex, a condensin complex, remodels the X chromosomes of hermaphrodites into a sex-specific topology distinct from autosomes while regulating gene expression chromosome-wide.

    • Emily Crane
    • , Qian Bian
    •  & Barbara J. Meyer

  • Letter |

    The mechanisms by which Xist, a long non-coding RNA, silences one X chromosome in female mammals are unknown; here a mass spectrometry-based approach is developed to identify several proteins that interact directly with Xist, including the transcriptional repressor SHARP that is required for transcriptional silencing through the histone deacetylase HDAC3.

    • Colleen A. McHugh
    • , Chun-Kan Chen
    •  & Mitchell Guttman

  • Letter |

    Different organisms use a variety of mechanisms to compensate for X chromosome dosage imbalance between the sexes. In Drosophila, the MSL complex increases transcription on the single X chromosome of males and is thought to regulate transcription elongation, although mechanistic details have been unclear. Here, a global run-on sequencing technique is used to reveal that the MSL complex seems to enhance transcription by facilitating the progression of RNA polymerase II across the bodies of active X linked genes. In this way, MSL can impose dosage compensation on diverse genes with a wide range of transcription levels along the X chromosome.

    • Erica Larschan
    • , Eric P. Bishop
    •  & Mitzi I. Kuroda

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