Detection Of Mosaicism (Allelic Imballance) Using Affymetrix Gw6 Data?
2
1
Entering edit mode
12.3 years ago

I am familiar with methods for detecting mosaicism using Illumina array data, but it seems that there are far fewer tools for detecting mosaic regions in Affymetrix array data. There are a few tools that seem to attempt detection, but I was wondering if there were any others who found a solution that works well with Affymetrix data, or a detection method that allows control of false positive discovery rates?

affymetrix allele allele • 2.2k views
ADD COMMENT
0
Entering edit mode
12.2 years ago

I guess I'll answer my own question. What I ended up doing is running MAD (my first link in the question) using parameters that would yield a higher false discovery rate (FDR) for Illumina array data. This allowed me to detect large mosaic anomalies at a reasonable FDR, but still left room to lower the alpha and theta parameters to "discover" more anomalies at a higher FDR.

It seems that my original question is something that stems from inherent disparities in the quality of Illumina vs. Affymetrix B allele frequencies.

ADD COMMENT
0
Entering edit mode
11.5 years ago

i'm totally new in this area, and i am wondering why all the method of detecting mosaic is based on data derived from Illumina but not from affymetrix. Are there any specific defection in the results of Affy?

ADD COMMENT

Login before adding your answer.

Traffic: 2008 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6