Re: [galaxy-user] Exceptionally high RPKM values of miRNA and other short genes in Cuffdiff's output

2013-07-18 Thread Mohammad Heydarian
Hi Thanh, This is due to Cuffdiff correcting for the size of smaller transcripts, the authors call it the effective length correction. It is supposed to correct the loss of shorter transcripts upon size selection in creating your RNA-seq library. The default setting on Galaxy is to use the

Re: [galaxy-user] Exceptionally high RPKM values of miRNA and other short genes in Cuffdiff's output

2013-07-18 Thread Ross
Hi, Thanh, If your primary goal is inference about differential 'gene' expression taking biological variability into account with biological replicates for each of two conditions, you might want (eg see Dillies et al., http://bib.oxfordjournals.org/content/early/2012/09/15/bib.bbs046.long and