Question: bowtie2: multi mapping Summary report
gravatar for KVC_bioinfo
10 months ago by
KVC_bioinfo310 wrote:


I am having a hard time figuring out the summary report from bowtie2.

16182999 reads; of these:
16182999 (100.00%) were paired; of these:
5731231 (35.42%) aligned concordantly 0 times
4522376 (27.95%) aligned concordantly exactly 1 time
5929392 (36.64%) aligned concordantly >1 times
5731231 pairs aligned concordantly 0 times; of these:
2381431 (41.55%) aligned discordantly 1 time
3349800 pairs aligned 0 times concordantly or discordantly; of these:
6699600 mates make up the pairs; of these:
3814736 (56.94%) aligned 0 times
1883429 (28.11%) aligned exactly 1 time
1001435 (14.95%) aligned >1 times
88.21% overall alignment rate

I am not able to understand which of the above % shows the multi mapping.

Thank you in advance.

bowtie2 • 612 views
ADD COMMENTlink modified 10 months ago by Devon Ryan81k • written 10 months ago by KVC_bioinfo310
gravatar for Devon Ryan
10 months ago by
Devon Ryan81k
Freiburg, Germany
Devon Ryan81k wrote:

There are 5929392 paired-end multimappers and 1001435 single-end multimappers. So you can get whatever appropriate percentage you want.

ADD COMMENTlink written 10 months ago by Devon Ryan81k

So it does not mention overall multi mapping?

ADD REPLYlink written 10 months ago by KVC_bioinfo310

It makes the most sense to report both numbers ("37% of the paired-end reads and 15% of the remaining singletons were multimapping").

ADD REPLYlink written 9 months ago by Devon Ryan81k
Please log in to add an answer.


Use of this site constitutes acceptance of our User Agreement and Privacy Policy.
Powered by Biostar version 2.3.0
Traffic: 1573 users visited in the last hour