# Base mismatch in arabidopsis tair 10 ref genome

**URL:** <https://help.galaxyproject.org/t/base-mismatch-in-arabidopsis-tair-10-ref-genome/16483>\
**Category:** usegalaxy.eu support\
**Tags:** reference-genome\
**Created:** [November 10, 2025, 2:41pm UTC](https://help.galaxyproject.org/t/base-mismatch-in-arabidopsis-tair-10-ref-genome/16483 "2025-11-10T14:41:54Z")\
**Posts on this page:** 1\
**Showing post:** 4

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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:** [November 12, 2025, 7:32pm UTC](https://help.galaxyproject.org/t/base-mismatch-in-arabidopsis-tair-10-ref-genome/16483/4 "2025-11-12T19:32:57Z")

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Hi @libby

Yes, the other sites are probably using a different release, possibly a patch release. Their release notes will likely list out the changes over time.

The default indexes in Galaxy are just one choice. If you would like to use a different genomic release version for follow up analysis in Galaxy, you could load up the genomic fasta file and use it as a **custom genome**. This method will work with most tools, and you could generate a **custom database dbkey** too, for cross-links with display applications like IGV.

If this interests you, please see → [Custom genome + custom build: How to use a genome that is not natively indexed at the server you are working at - #2 by jennaj](https://help.galaxyproject.org/t/custom-genome-custom-build-how-to-use-a-genome-that-is-not-natively-indexed-at-the-server-you-are-working-at/10082/2)

Any questions with this, please ask! 🙂

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