[BioC] deseq2: convert ensembl ID to gene symbol.

[Fabrice Tourre]

Dear expert,

I am using Deseq2 and Dexseq to analysis my RNA-seq data. I totally
follow the vignette in these packages.

In the last output, for the function DEXSeqHTML or HTMLReport, I
prefer to use gene symbol, not ensembl ID. For example, I prefer Muc2
to ENSMUSG00000095400. It is more human readable. How can I output
gene symbol than Ensembl ID? But it seems that I cannot directly
change the gtf file. Because several Ensembl ID match on gene symbol
as follow:

ENSMUSG00000095400  Muc2
ENSMUSG00000094393  Muc2
ENSMUSG00000025515  Muc2

Thank you very much in advance.