Functional associations of evolutionarily recent human genes exhibit sensitivity to the 3D genome landscape and disease.

Katherine Fleck,Victor Luria, Nitanta Garag,Amir Karger, Trevor Hunter, Daniel Marten,William Phu, Kee-Myoung Nam,Nenad Sestan, Anne H O'Donnell-Luria,Jelena Erceg

bioRxiv : the preprint server for biology(2024)

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摘要
Genome organization is intricately tied to regulating genes and associated cell fate decisions. In this study, we examine the positioning and functional significance of human genes, grouped by their evolutionary age, within the 3D organization of the genome. We reveal that genes of different evolutionary origin have distinct positioning relationships with both domains and loop anchors, and remarkably consistent relationships with boundaries across cell types. While the functional associations of each group of genes are primarily cell type-specific, such associations of conserved genes maintain greater stability across 3D genomic features and disease than recently evolved genes. Furthermore, the expression of these genes across various tissues follows an evolutionary progression, such that RNA levels increase from young genes to ancient genes. Thus, the distinct relationships of gene evolutionary age, function, and positioning within 3D genomic features contribute to tissue-specific gene regulation in development and disease.
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