gnu: Add r-scran.

* gnu/packages/bioinformatics.scm (r-scran): New variable.

gnu/packages/bioinformatics.scm

@@ -10582,6 +10582,48 @@ various analyses of single-cell RNA-seq gene expression data, with a focus on
 quality control.")
     (license license:gpl2+)))
 
+(define-public r-scran
+  (package
+    (name "r-scran")
+    (version "1.6.7")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (bioconductor-uri "scran" version))
+       (sha256
+        (base32
+         "0zfm5i8xrnzb3894xygqd6zkbwaa2x3z74wbxw39fcjhyhxv2hmb"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-beachmat" ,r-beachmat)
+       ("r-biocgenerics" ,r-biocgenerics)
+       ("r-biocparallel" ,r-biocparallel)
+       ("r-dt" ,r-dt)
+       ("r-dynamictreecut" ,r-dynamictreecut)
+       ("r-edger" ,r-edger)
+       ("r-fnn" ,r-fnn)
+       ("r-ggplot2" ,r-ggplot2)
+       ("r-igraph" ,r-igraph)
+       ("r-limma" ,r-limma)
+       ("r-matrix" ,r-matrix)
+       ("r-rcpp" ,r-rcpp)
+       ("r-rhdf5lib" ,r-rhdf5lib)
+       ("r-s4vectors" ,r-s4vectors)
+       ("r-scater" ,r-scater)
+       ("r-shiny" ,r-shiny)
+       ("r-singlecellexperiment" ,r-singlecellexperiment)
+       ("r-statmod" ,r-statmod)
+       ("r-summarizedexperiment" ,r-summarizedexperiment)
+       ("r-viridis" ,r-viridis)
+       ("r-zoo" ,r-zoo)))
+    (home-page "https://bioconductor.org/packages/scran")
+    (synopsis "Methods for single-cell RNA-Seq data analysis")
+    (description "This package implements a variety of low-level analyses of
+single-cell RNA-seq data.  Methods are provided for normalization of
+cell-specific biases, assignment of cell cycle phase, and detection of highly
+variable and significantly correlated genes.")
+    (license license:gpl3)))
+
 (define htslib-for-sambamba
   (let ((commit "2f3c3ea7b301f9b45737a793c0b2dcf0240e5ee5"))
     (package