> For the complete documentation index, see [llms.txt](https://help.bioinsight.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.bioinsight.illumina.com/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks.md).

# Visualization tracks

Visualization tracks add reference, curated, knowledge base, population, and optional signal data to the **Variant visualization tool**.

Track availability depends on the case type, enabled integrations, and attached files.

Refer to the pages below for track details by category:

* [**Default tracks**](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/default-tracks.md): Core reference and case tracks for variant review.
* [**Curated data tracks**](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/curated-data-tracks.md): Curated variant data from sources like ClinVar and **Curate**.
* [**Knowledge base tracks**](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/knowledge-base-tracks.md): Gene and region knowledge for disease and dosage context.
* [**Population data tracks**](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/population-data-tracks.md): Internal and public population data for frequency comparison.
* [**Additional tracks**](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/additional-tracks.md): Optional alignment, signal, and structural tracks when supporting files are available.

## Learn more

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>Default tracks</strong></td><td>Core reference and case tracks that display by default during variant review in the <strong>Variant visualization tool</strong>.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/default-tracks.md">Learn more</a></td></tr><tr><td><strong>Curated data tracks</strong></td><td>Curated variant data from sources such as ClinVar and Curate.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/curated-data-tracks.md">Learn more</a></td></tr><tr><td><strong>Knowledge base tracks</strong></td><td>Gene and region knowledge for disease and dosage context during variant interpretation.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/knowledge-base-tracks.md">Learn more</a></td></tr><tr><td><strong>Population data tracks</strong></td><td>Internal and public population data for allele frequency comparison.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/population-data-tracks.md">Learn more</a></td></tr><tr><td><strong>Additional tracks</strong></td><td>Optional alignment, signal, and structural tracks when supporting files are available.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/additional-tracks.md">Learn more</a></td></tr><tr><td><strong>Variant visualization tool</strong></td><td>IGV-based genome viewer for inspecting variants, tracks, and supporting evidence during case review.</td><td><i class="fa-arrow-up-right-from-square">:arrow-up-right-from-square:</i> <a href="/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool.md">Learn more</a></td></tr></tbody></table>


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