FelixKrueger / Bismark

A tool to map bisulfite converted sequence reads and determine cytosine methylation states
http://felixkrueger.github.io/Bismark/
GNU General Public License v3.0
394 stars 103 forks source link

Expected unique alignment % #681

Closed gevro closed 5 months ago

gevro commented 5 months ago

Hi, What is the expected unique alignment %? For example, for NEB EM-seq libraries, I'm seeing only 60 - 75%, which seems low to me. This is with max insert size set to 1000.

FelixKrueger commented 5 months ago

This depends on several factors, naming just a few: the genome of interest and its repeat content, SE or PE, read length, contamination (adapter dimers, other organisms, out of control spike-ins, PhiX etc), and appropriate trimming. For human libraries with ~100bp reads PE I would probably expect around 80%, for mouse probably a little less

gevro commented 5 months ago

Thanks!