The complete telomere-to-telomere sequence of a mouse genome.

Science

Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.

Published: December 2024


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

The current reference genome of , GRCm39, has major gaps in both euchromatic and heterochromatic regions associated with repetitive sequences. In this work, we have sequenced and assembled the telomere-to-telomere genome of mouse haploid embryonic stem cells. The results reveal more than 7.7% of previously uncovered sequences of the mouse genome, including ribosomal DNA arrays and pericentromeric and subtelomeric regions, as well as an additional 140 genes predicted to be protein-coding. This study helps to address knowledge gaps in the mouse genome.

Download full-text PDF

Source
http://dx.doi.org/10.1126/science.adq8191DOI Listing

Publication Analysis

Top Keywords

mouse genome
12
genome
5
complete telomere-to-telomere
4
telomere-to-telomere sequence
4
mouse
4
sequence mouse
4
genome current
4
current reference
4
reference genome
4
genome grcm39
4

Similar Publications

Autism spectrum disorder (ASD) is a neurodevelopmental condition that is increasingly linked to immune dysfunction and neuroinflammation. Regulatory T cells (Tregs), which are crucial in maintaining immune homeostasis, have been implicated in the pathogenesis of ASD. However, their role in neuroimmune interactions and behavioral outcomes remains poorly understood.

View Article and Find Full Text PDF

Insulin resistance is a heritable risk factor for many chronic diseases; however, the genetic drivers remain elusive. In seeking these, we performed genetic mapping of insulin sensitivity in 670 chow-fed Diversity Outbred in Australia (DOz) mice and identified a genome-wide significant locus (QTL) on chromosome 8 encompassing 17 defensin genes. By taking a systems genetics approach, we identified alpha-defensin 26 (Defa26) as the causal gene in this region.

View Article and Find Full Text PDF

The flexibility of the spatio-temporal genome replication program during development and disease highlights the regulatory role of plastic epigenetic mechanisms over genetic determinants. Histone post-translational modifications are broadly implicated in replication timing control, yet the specific mechanisms through which individual histone marks influence replication dynamics, particularly in heterochromatin, remain unclear. Here, we demonstrate that H3K36me3 dynamically enriches at pericentromeric heterochromatin, composed of major satellite DNA repeats, prior to replication during mid S phase in mouse embryonic stem cells.

View Article and Find Full Text PDF

Clusters of deep intronic RbFox motifs embedded in large assembly of splicing regulators sequences regulate alternative splicing.

PLoS Genet

September 2025

Neural Development Section, Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland, United States of America.

The RbFox RNA binding proteins regulate alternative splicing of genes governing mammalian development and organ function. They bind to the RNA sequence (U)GCAUG with high affinity but also non-canonical secondary motifs in a concentration dependent manner. However, the hierarchical requirement of RbFox motifs, which are widespread in the genome, is still unclear.

View Article and Find Full Text PDF

Tracking the translocation of fluorescent-based reporters at the single-cell level in living mouse embryos requires specialized expertise in mouse embryology and deep computational skills. Here, we detail an approach to quantify cyclin-dependent kinase (CDK) activity levels in single cells throughout different stages of the pre-implantation embryo. We discuss in vitro culture strategies that enable efficient live fluorescent confocal image acquisition and subsequent cell tracking.

View Article and Find Full Text PDF