RNASeq - overrepresent sequences

[JoaoMoura]

Hey guys!

First of all, I'm sorry If I'm puting this question in the wrong section, but I'm new to this forum.

Well, I'm doing DE with RNASeq and after doing some QA and QC (removed the solexa adapter and trimmed the reads) I still have an 2 overrepresented sequences from most of my fasta files, which are:

CGATGAAGAACGCAGCGAAATG

CCCCCTGGAATACCAAGGGGCG

Do you have any idea what they are?

Thanks a lot!

[maubp]

Were any PCR primers used in preparing the sample?

[JoaoMoura]

Hi!

Actually I'm not sure. But background is not biological, but I tried looking in the article and suplementary material, but I didn't find anything.

This is the article:

http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.1000299#s5