UGENE Forum - How to show a quality graph for .ABI files?

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UGENE Forum › General Category › Help and How-to › How to show a quality graph for .ABI files?

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How to show a quality graph for .ABI files? (Read 12763 times)

Jun 30^th, 2009 at 2:39pm

mats Offline
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Posts: 3

I'm sure that can viewed a quality graph for .abi files, but i try right now and don't find such option....maybe i'am confused and i viewed a quality graph in another software, but i think that was using UGENE software... Huh

look like this

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Reply #1 - Jul 6^th, 2009 at 10:43am

Alexey Varlamov Offline
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Novosibirsk, Russia

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Posts: 11

Ugene displays quality values slightly differently, as bars above chromatogram peaks. Since version 1.4.1, the bars can be turned on/off via context menu, as displayed on the attached screenshot.

« Last Edit: Jul 6^th, 2009 at 2:30pm by Alexey Varlamov »

qual.png (47 KB | )

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Reply #2 - Jul 8^th, 2009 at 12:45pm

mats Offline
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Posts: 3

yep, I know about quality bars, but i thought that Ugene could show the graphic too...I am confused, i don't know where saw that type of plot, what software was......but well, thanks for the answer, and , about the topic, is very useful can see a quality graphic, because is more easy find the zones at extremes of the sequences, the limit where the sequence is becoming a good one, and cut-out the rest for posterior analysis

Oh, what about the colours of quality bars, some equivalence of a phred score, a reference value?

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Reply #3 - Jul 9^th, 2009 at 8:42pm

Mikhail Fursov Offline
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The color scheme of quality bars is rather simple: green - low signal, yellow is medium, red - strong signal. The gradient has linear scale and has no equivalence with phred.

I think we can add the functionality you need the UGENE too. Could you describe the method used to build the line chart on your picture in details?

---
UGENE team

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Reply #4 - Jul 16^th, 2009 at 12:14pm

mats Offline
YaBB Newbies

Posts: 3

This quality graph are displayed for a service of dna sequencing that I use usually (macrogen).
the red and the green line are phred score, 16 and 20, respectively.
I don't know nothing about the method of building, sorry.

And thanks for the answers and for the software , Ugene is a very pleasing piece of software, was a very nice surprise for me and my linux system, congrats.

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