Question: Visualizing BowTie2 BAM File?
2
gravatar for mkpelletier
4.6 years ago by
mkpelletier20
United States
mkpelletier20 wrote:

Good Morning: I am new to Galaxy, and have a question about the BowTie 2 BAM file.  I had BowTie2 align my Arabidopsis thaliana reads to the TAIR v10 database, and that seems to have gone well, as I can see most of the reads have aligned just fine.  What I cannot figure out is how to visualize the actual sequences of the reads (GATC, etc) relative to the reference genome.  Is there a simple way to do this?  Simply zooming in does not seem to do the trick.  Thanks in advance.

bowtie • 3.3k views
ADD COMMENTlink modified 3.5 years ago by Philipe Moncuquet40 • written 4.6 years ago by mkpelletier20

You have mentioned "zooming". Are you already using some genome viewer, like Trackster, UCSC or IGV? In all of them you should be able to see the base pairs. You can use all of them from Galaxy.

ADD REPLYlink written 4.6 years ago by Bjoern Gruening5.1k

It says "trackster" under visualization "type" when I look at the saved visualization.  I see a bunch of grey bars that are aligned to the reference genome with positions, but can't see any nucleotides.

ADD REPLYlink written 4.6 years ago by mkpelletier20

Here is a screenshot...http://mkpelletier.imgur.com/all/ 

ADD REPLYlink written 4.6 years ago by mkpelletier20

It says: "mkpelletier's images are not publicly available."

ADD REPLYlink written 4.6 years ago by Bjoern Gruening5.1k

try http://i.imgur.com/qGcahAo.png

 

ADD REPLYlink modified 4.6 years ago by Istvan Albert250 • written 4.6 years ago by Martin Čech ♦♦ 4.9k

http://i.imgur.com/qGcahAo.png is another link that might work if the first one is presenting difficulties.

ADD REPLYlink written 4.6 years ago by mkpelletier20
0
gravatar for Bjoern Gruening
4.6 years ago by
Bjoern Gruening5.1k
Germany
Bjoern Gruening5.1k wrote:

Trackster, the Galaxy Genome viewer, is able to show also the nucletide sequences. You only need to zoom in. Zooming can be done either vie the (+) (-) Zooming buttons on top, or you can select a region of interest. If that region is small enough you will see the nucleotides.

ADD COMMENTlink written 4.6 years ago by Bjoern Gruening5.1k

Bjoern-I must be missing something simple.  Can I share the history with you and have you take a quick look?  If so, what e-mail address do I need to use?

ADD REPLYlink written 4.6 years ago by mkpelletier20

take a screenshot upload into a site like http://www.imgur.com and paste the link into a post

ADD REPLYlink written 4.6 years ago by Istvan Albert250

Hi,

please see this dummy visualisation. https://usegalaxy.org/u/bgruening/v/for-mkpelletier

You can also share your visualisation with me. I'm not sure, but it can be an Arabidopsis specific problem.

ADD REPLYlink modified 4.6 years ago by Martin Čech ♦♦ 4.9k • written 4.6 years ago by Bjoern Gruening5.1k
0
gravatar for Philipe Moncuquet
3.5 years ago by
Australia
Philipe Moncuquet40 wrote:

Hi there,

I am having the same problem here. I work on the hg19 build with some reads fro chr20 and no matter how deep I zoom in I can't see nucleotides sequence as per the example shown by Bjoern. I have check that the build is well recognised, when I had a vcf file track with variant I am actually able to see this nucleotide but not for the reference.

 

Philip 

ADD COMMENTlink modified 3.5 years ago • written 3.5 years ago by Philipe Moncuquet40
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