would appreciate the help with an answer to the question (probably it was asked before) :
how could I display the GENE NAME SYMBOLS in Gviz ? The code I use is :
gen <- "hg19"
chr <- "chr21"
start <- 45000000
end <- 46000000
txdb_hg19 <- TxDb.Hsapiens.UCSC.hg19.knownGene
txTranscripts_v1 <- GeneRegionTrack(txdb_hg19, genome="hg19", chromosome="chr21", showId=TRUE, geneSymbol=TRUE, name="UCSC")
plotTracks(txTranscripts_v1, from=start, to=end)