# I could't find the reference genome that I want

**URL:** <https://help.galaxyproject.org/t/i-couldt-find-the-reference-genome-that-i-want/8402>\
**Category:** usegalaxy.org support\
**Tags:** reference-index, custom-genome\
**Created:** [August 2, 2022, 8:27am UTC](https://help.galaxyproject.org/t/i-couldt-find-the-reference-genome-that-i-want/8402 "2022-08-02T08:27:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![faiz1](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@faiz1](https://help.galaxyproject.org/u/faiz1)\
**Post date:** [August 2, 2022, 8:27am UTC](https://help.galaxyproject.org/t/i-couldt-find-the-reference-genome-that-i-want/8402/1 "2022-08-02T08:27:14Z")

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Hi , I am learning about Mapping ,and when using the RNA STAR,I cannot find a reference genome called Fly (Drosophila melanogaster): dm6 Full. What should I do? How to find it or how to insert it? Thank you verymuch

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**Author:** ![gallardoalba](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/gallardoalba/32/1903_2.png) [@gallardoalba](https://help.galaxyproject.org/u/gallardoalba)\
**Post date:** [August 26, 2022, 2:26pm UTC](https://help.galaxyproject.org/t/i-couldt-find-the-reference-genome-that-i-want/8402/2 "2022-08-26T14:26:45Z")

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Hi @faiz1,  
you can find the indexed genomes in [usegalaxy.eu](https://usegalaxy.eu/root?tool_id=toolshed.g2.bx.psu.edu/repos/iuc/rgrnastar/rna_star/2.7.8a+galaxy0). Otherwise, you can download the reference genome from [NCBI](https://www.ncbi.nlm.nih.gov/genome?term=vih&cmd=DetailsSearch); you just need to copy the following link:

- `https://ftp.ncbi.nlm.nih.gov/genomes/all/GCF/000/001/215/GCF_000001215.4_Release_6_plus_ISO1_MT/GCF_000001215.4_Release_6_plus_ISO1_MT_genomic.fna.gz`

Then you need to click in **Upload data** in the Galaxy interface, then click in **Paste/Fetch data** , paste the link there and finally **Start**.

Regards

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [September 17, 2022, 12:17am UTC](https://help.galaxyproject.org/t/i-couldt-find-the-reference-genome-that-i-want/8402/3 "2022-09-17T00:17:16Z")

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