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Comparing Genomic and Epigenomic Features across Species Using the WashU Comparative Epigenome Browser

View ORCID ProfileXiaoyu Zhuo, View ORCID ProfileSilas Hsu, Deepak Purushotham, Samuel Chen, View ORCID ProfileDaofeng Li, View ORCID ProfileTing Wang
doi: https://doi.org/10.1101/2022.11.29.518374
Xiaoyu Zhuo
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
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Silas Hsu
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
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Deepak Purushotham
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
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Samuel Chen
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
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Daofeng Li
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
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Ting Wang
1Washington University School of Medicine in St. Louis, Department of Genetics, Saint Louis, Missouri, USA
2The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St Louis, MO, USA
3McDonell Genome Institute, Washington University School of Medicine, St Louis, MO, USA
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  • For correspondence: twang@genetics.wustl.edu
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Abstract

Genome browsers have become an intuitive and critical tool to visualize and analyze genomic features and data. Conventional genome browsers display data/annotations on a single reference genome/assembly; there are also genomic alignment viewer/browsers that help users visualize alignment, mismatch, and rearrangement between syntenic regions. However, there is a growing need for a comparative epigenome browser that can display genomic and epigenomic datasets across different species and enable users to compare them between syntenic regions. Here, we present the WashU Comparative Epigenome Browser (http://comparativegateway.wustl.edu). It allows users to load functional genomic datasets/annotations mapped to different genomes and display them over syntenic regions simultaneously. The browser also displays genetic differences between the genomes from single nucleotide variants (SNVs) to structural variants (SVs) to visualize the association between epigenomic differences and genetic differences. Instead of anchoring all datasets to the reference genome coordinates, it creates independent coordinates of different genome assemblies to faithfully present features and data mapped to different genomes. It uses a simple, intuitive genome-align track to illustrate the syntenic relationship between different species. It extends the widely used WashU Epigenome Browser infrastructure and can be expanded to support multiple species. This new browser function will greatly facilitate comparative genomic/epigenomic research, as well as support the recent growing needs to directly compare and benchmark the T2T CHM13 assembly and other human genome assemblies.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
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Posted December 02, 2022.
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Comparing Genomic and Epigenomic Features across Species Using the WashU Comparative Epigenome Browser
Xiaoyu Zhuo, Silas Hsu, Deepak Purushotham, Samuel Chen, Daofeng Li, Ting Wang
bioRxiv 2022.11.29.518374; doi: https://doi.org/10.1101/2022.11.29.518374
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Comparing Genomic and Epigenomic Features across Species Using the WashU Comparative Epigenome Browser
Xiaoyu Zhuo, Silas Hsu, Deepak Purushotham, Samuel Chen, Daofeng Li, Ting Wang
bioRxiv 2022.11.29.518374; doi: https://doi.org/10.1101/2022.11.29.518374

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