Hi,  We have two lists of genes (one regulated by treatment A and the other
regulated by treatment B ).  Each list contains genes with a BY adjusted p
value (or FDR) <0.01.  As we expected from the biology, when we do a Venn
diagram many of the genes that are affected by treatment A are also affected
by treatment B ie lie in the intersection.  We are wondering how to
calculate the FDR of the intersection set.  If the gene belongs to both
sets, does this mean that its FDR is now less than 0.01? And does this then
mean that the genes that are not in the intersection set (ie are exclusive
to treatment A or treatment B) have a FDR more than 0.01?

 

We would really appreciate any advice that people can give...

 

Thanks in advance,

Marg

 

Dr Margaret Gardiner-Garden

Garvan Institute of Medical Research

384 Victoria Street

Darlinghurst Sydney

NSW 2010 Australia

 

Phone: 61 2 9295 8348

Fax: 61 2 9295 8321

 

 


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