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Updated: Apr 26, 2026

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Published on: December 7, 2021
Circleator: flexible circular visualization of genome-associated data with BioPerl and SVG
Jonathan Crabtree1, Sonia Agrawal1, Anup Mahurkar1
1Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, i3 Institute, University of Technology, Sydney, PO Box 123 Broadway NSW 2007, Australia, Department of Microbial Pathogenesis, University of Maryland Dental School, Baltimore, MD 21201, Center for Health-Related Informatics and Bioimaging, University of Maryland, College Park, MD 20740 and Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Summary:
Circleator is a Perl application that generates circular figures of genome-associated data. It leverages BioPerl to support standard annotation and sequence file formats and produces publication-quality SVG output. It is designed to be both flexible and easy to use. It includes a library of circular track types and predefined configuration files for common use-cases, including. (i) visualizing gene annotation and DNA sequence data from a GenBank flat file, (ii) displaying patterns of gene conservation in related microbial strains, (iii) showing Single Nucleotide Polymorphisms (SNPs) and indels relative to a reference genome and gene set and (iv) viewing RNA-Seq plots.
Availability And Implementation:
Circleator is freely available under the Artistic License 2.0 from http://jonathancrabtree.github.io/Circleator/ and is integrated with the CloVR cloud-based sequence analysis Virtual Machine (VM), which can be downloaded from http://clovr.org or run on Amazon EC2.
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