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Serves to search and retrieve data from microbial genomes and to compare genomics sequences. EDGAR procures extended phylogenetic analysis features as AAI (Average Amino Acid Identity) or ANI (Average Nucleotide Identity) matrices. This web tool provides a genome set size statistics and visualizations. It proposes an interface which shows evolutionary relationships between microbial genomes and helps about the process of obtaining new biological insights into their differential gene content.

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2 user reviews

2 user reviews

Johanna Nelkner's avatar image Johanna Nelkner's country flag

Johanna Nelkner

Combines all current comparative analyses as ANI/AAI calculation, Core/Pangenome calculation, singleton analysis. Also provides a Comparative Genome Viewer and can calculate phylogenetic trees based on core genes.

KaHone's avatar image KaHone's country flag


Very user friendly online tool with great support from the host team.
does not require any computing knowledge.

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EDGAR classification

EDGAR specifications

Web user interface
Programming languages:
Javascript, R
Restrictions to use:
Computer skills:

EDGAR support


  • Jochen Blom <>

Additional information

(Blom et al., 2016) EDGAR 2.0: an enhanced software platform for comparative gene content analyses. Nucleid Acids Research.


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Bioinformatics & Systems Biology, Justus-Liebig-University Giessen, Giessen, Hesse, Germany; Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, VD, Switzerland; SIB Swiss Institute of Bioinformatics, Lausanne, VD, Switzerland; Center for Familial Breast and Ovarian Cancer, Medical Faculty, University Hospital Cologne, University of Cologne, Cologne, NRW, Germany

Funding source(s)

This work was supported by the German Federal Ministry of Education and Research within the de.NBI network [FKZ 031A533].

Link to literature

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