> 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/population-data-tracks.md).

# Population data tracks

These [visualization tracks](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks.md) help you compare case findings against internal and public population data.

## Organization databases

Each [organization database](/emedgene/emedgene-analyze-manual/settings/organization_settings_-330+/workbench-and-pipeline/organization-db-management/organization-databases.md) has its own track. The track name is the name of that database.

Select a variant to review variant details from the database:

* Allele frequency
* Allele count and allele number
* Heterozygote and homozygote or hemizygote counts
* Sample IDs where the variant was last observed

## gnomAD SV

The **gnomAD SV** track displays deletions (DEL), duplications (DUP), and insertions (INS) from gnomAD.

From v100.41 onwards, for GRCh38 cases, the track also includes complex structural variants (CPX) and inversions (INV) from [gnomAD SV v4.1](https://gnomad.broadinstitute.org/news/2023-11-v4-structural-variants/).

Use the track to review population frequency and distribution across diverse cohorts in gnomAD.

<figure><img src="https://1131024994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGCW0DnLlE7QjoZPNmKIi%2Fuploads%2Fgit-blob-ce3155a6ed56a161b455bd4891eb2dd232a96a1a%2Fimage%20(153).png?alt=media" alt=""><figcaption><p><strong>gnomAD SV</strong> track.</p></figcaption></figure>

## DGV Gold

The **DGV Gold** track displays high-confidence structural variants curated by the Database of Genomic Variants.

Use it as a reference for common benign structural variants.

<figure><img src="https://1131024994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGCW0DnLlE7QjoZPNmKIi%2Fuploads%2Fgit-blob-538562e60602e004551ff89ab5ef9e8a541caa58%2Fimage%20(155).png?alt=media" alt=""><figcaption><p><strong>DGV Gold</strong> track.</p></figcaption></figure>

## Decipher Population

The **Decipher Population** track displays variants observed in unaffected individuals from DECIPHER (Database of Chromosomal Imbalance and Phenotype in Humans using Ensembl Resources).

Use it to compare case findings with DECIPHER population data from unaffected individuals.

For DECIPHER data from affected individuals, see the **Decipher Known Variants** track in [Knowledge base tracks](/emedgene/emedgene-analyze-manual/variant-visualization/variant-visualization-tool/visualization-tracks/knowledge-base-tracks.md).

<figure><img src="https://1131024994-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGCW0DnLlE7QjoZPNmKIi%2Fuploads%2Fgit-blob-8c17041fd9a41d34f75e13a26712e6d9752f8ad7%2Fimage%20(154).png?alt=media" alt=""><figcaption><p><strong>Decipher Population</strong> track.</p></figcaption></figure>


---

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