gnu: Add r-genomegraphs.

* gnu/packages/bioconductor.scm (r-genomegraphs): New variable.

gnu/packages/bioconductor.scm

@@ -5947,3 +5947,31 @@ (define-public r-variantfiltering
 model, amino acid change consequence, minor allele frequencies across human
 populations, splice site strength, conservation, etc.")
     (license license:artistic2.0)))
+
+(define-public r-genomegraphs
+  (package
+    (name "r-genomegraphs")
+    (version "1.44.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "GenomeGraphs" version))
+       (sha256
+        (base32
+         "026skcn2cqchlzaqsnk11gb8d8aq1rz7lrnx4mmsba234mh4j7kd"))))
+    (properties `((upstream-name . "GenomeGraphs")))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-biomart" ,r-biomart)))
+    (home-page "https://bioconductor.org/packages/GenomeGraphs/")
+    (synopsis "Plotting genomic information from Ensembl")
+    (description
+     "Genomic data analyses requires integrated visualization of known genomic
+information and new experimental data.  GenomeGraphs uses the biomaRt package
+to perform live annotation queries to Ensembl and translates this to e.g.
+gene/transcript structures in viewports of the grid graphics package.  This
+results in genomic information plotted together with your data.  Another
+strength of GenomeGraphs is to plot different data types such as array CGH,
+gene expression, sequencing and other data, together in one plot using the
+same genome coordinate system.")
+    (license license:artistic2.0)))