Question: Aligning S. aureus reads to a reference genome
0
gravatar for david.magee
4.0 years ago by
United States
david.magee0 wrote:

Dear colleagues,

I am currently trying to aligning reads from a dual RNA-seq experiment to the Staph aureus genome. For this, we have dowloaded the S. aureus reference genome in FASTA format from NCBI and stored in our history. We then have selected this genome from the history (with the correct attributes assigned) as the reference for our alignments using both Bowtie and TopHat. However, after the run is completed we received the following message with no accompanying results:

Settings: Output files: "genome.*.bt2" Line rate: 6 (line is 64 bytes) Lines per side: 1 (side is 64 bytes) Offset rate: 4 (one in 16) FTable chars: 10 Strings: unpacked Max bucket size: default Max bucket size, sqrt multiplier: default

Can anyone tell us where we are going wrong and if there is anyway we can correctly align our reads to the Staph aureus genome.

Best wishes,

David

rna-seq tophat alignment bowtie • 1.1k views
ADD COMMENTlink modified 4.0 years ago • written 4.0 years ago by david.magee0

Where do you see this message?

ADD REPLYlink written 4.0 years ago by Bjoern Gruening5.1k

Hi Bjoern,

The message appears in the output table after running Bowtie/TopHat in Galaxy. I was thinking of downloading the S. aureus genome again and re-uploading it to Galaxy to make sure there is no issue with the reference genome file.

Regards,

David

ADD REPLYlink written 4.0 years ago by david.magee0

This is strange, can you share me your history?

ADD REPLYlink written 4.0 years ago by Bjoern Gruening5.1k

Hi Bjoern,

Would it be best to share my colleagues details with you? That way you can look at the account history? If, so, how can I share this with you?

Regards,


David

ADD REPLYlink written 4.0 years ago by david.magee0

Try with my username: bjoern.gruening@gmail.com

ADD REPLYlink written 4.0 years ago by Bjoern Gruening5.1k

Glad Bjoern is examining. There may be a format issue triggering an index error. To double check, see the 'Troubleshooting' help here. Many fastq datasets can be corrected directly in Galaxy. 
http://wiki.galaxyproject.org/Learn/CustomGenomes

Best, Jen, Galaxy team

ADD REPLYlink written 4.0 years ago by Jennifer Hillman Jackson25k

Hi Bjoern and Jennifer,

I am actually performing this work for a colleague so I will ask her to share her history with you.

Thank you so much for your help

David

ADD REPLYlink written 4.0 years ago by david.magee0
0
gravatar for david.magee
4.0 years ago by
United States
david.magee0 wrote:

Hi Bjoern and Jennifer,

Would it be best to share my colleagues details with you? That way you can look at the account history? If, so, how can I share this with you?

Regards,


David

ADD COMMENTlink written 4.0 years ago by david.magee0
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