I hope you can help me with my strange question. I have 3 RNA-seq data from 3 different tissues and I would like to find the genes that are expressed in the same manner between those tissues. When I say expressed in the same manner, this means that if they are either expressed or not expressed. I thought about doing a differential gene expression analysis between the 3 tissues (1v1) and then select the genes that are not differentially expressed between the 3 tissues.
But for reasons that I can not explain, this seems not correct to me. So if anyone has experience or suggestions on the best way to proceed with this, I am open for it !
Thanks in advance for your help!