# RNA STAR mapping for human genome hg38

**URL:** <https://help.galaxyproject.org/t/rna-star-mapping-for-human-genome-hg38/3087>\
**Category:** usegalaxy.org support\
**Tags:** devops-administration\
**Created:** [February 28, 2020, 6:38pm UTC](https://help.galaxyproject.org/t/rna-star-mapping-for-human-genome-hg38/3087 "2020-02-28T18:38:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mayur\_Doke](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/mayur_doke/32/355_2.png) [@Mayur\_Doke](https://help.galaxyproject.org/u/Mayur_Doke)\
**Post date:** [February 28, 2020, 6:38pm UTC](https://help.galaxyproject.org/t/rna-star-mapping-for-human-genome-hg38/3087/1 "2020-02-28T18:38:06Z")

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Hello,

I have fastq files which I have already trimmed and added reference geome as hg38. Then I have tried to map paired ended trimmed files by using RNA STAR tool. I have selected built-in reference genome option \< then selected Reference genome with builtin gene-model \< but under select reference genome I am not getting any option. Could you please help me with this issue? Thank you.