count v dispersion plot

[stephenhart]

I am analyzing my RNA-seq data with cummeRbund. I have four conditions, 5 biological replicates per condition. Why do the count vs dispersion plots look more or less identical for all four conditions? I can see from the cummeRbund vignette that this is supposed to be the case; I just don't know why.

Any insights would be appreciated.

Thanks.

[jp.]

Di you get the answer ?
If yes, may you please explain me ?

I am analyzing my RNA-seq data with cummeRbund. I have four conditions, 5 biological replicates per condition. Why do the count vs dispersion plots look more or less identical for all four conditions? I can see from the cummeRbund vignette that this is supposed to be the case; I just don't know why.

Any insights would be appreciated.

Thanks.