if (!requireNamespace("BiocManager", quietly = TRUE))
install.packages("BiocManager")
BiocManager::install("RcwlPipelines")The development version is also available to download from Github.
BiocManager::install("hubentu/RcwlPipelines")library(RcwlPipelines)
library(dplyr)The R scripts to build the CWL tools and pipelines are collected in a github repository now (https://github.com/hubentu/RcwlRecipes), which is community effort to collect Bioinformatics tools and pipelines using Rcwl and CWL (Common Workflow Language).
Three functions are used to collect the Rcwl scripts, search tools
recipes by keywords and load the scripts to current R environment.
The cwlUpdate function can update the recipe scripts from the github
repository and collect meta data to a local cache by the
BiocFileCache package. By default the local cache will be created
under your home directory for the first time. Here we use temporary
directory for example.
tools <- cwlUpdate(cachePath = tempfile())
#> Update scripts...
tools
#> class: BiocFileCache
#> bfccache: /tmp/RtmpqutAFt/file787141e04582
#> bfccount: 129
#> For more information see: bfcinfo() or bfcquery()The function cwlSearch can help to search indexed recipes by
keywords. For example, here we try to find the alignment tool bwa mem.
tl <- cwlSearch(c("bwa", "mem"), tools)
data.frame(tl)
#> rid rname create_time access_time
#> 1 BFC81 tl_bwa 2020-08-11 01:36:48 2020-08-11 01:36:48
#> rpath rtype
#> 1 /tmp/RtmpqutAFt/file787141e04582/RcwlRecipes-master/Rcwl/tl_bwa.R local
#> fpath
#> 1 /tmp/RtmpqutAFt/file787141e04582/RcwlRecipes-master/Rcwl/tl_bwa.R
#> last_modified_time etag expires Type Command
#> 1 NA <NA> NA tool bwa mem
#> Container
#> 1 biocontainers/bwa:v0.7.17-3-deb_cv1The function cwlInstall can be used to “install” to tools or
pipelines to current environment by given the script path.
cwlInstall(tl$rpath)
bwa
#> class: cwlParam
#> cwlClass: CommandLineTool
#> cwlVersion: v1.0
#> baseCommand: bwa mem
#> requirements:
#> - class: DockerRequirement
#> dockerPull: biocontainers/bwa:v0.7.17-3-deb_cv1
#> inputs:
#> threads (int): -t
#> RG (string): -R
#> Ref (File):
#> FQ1 (File):
#> FQ2 (File?):
#> outputs:
#> sam:
#> type: File
#> outputBinding:
#> glob: '*.sam'
#> stdout: bwaOutput.samOr we can install the tools by its rname directly.
cwlInstall(rname = 'tl_bwa', bfc = tools)That’s it! The tool “bwa” is ready to use.
We can develop a pipline by utilizing the available tools. For
example, a simple alignment pipelines with mapping and marking
duplicates can be built from the tools.
First, we check whether the required tools (bwa, samtools and picard markduplicates) are available.
tls <- cwlSearch("bwa|sam2bam|sortBam|samtools_index|markdup", tools) %>%
filter(Type == "tool") %>%
select(rname, rpath, Command, Container)
tls
#> # A tibble: 6 x 4
#> rname rpath Command Container
#> <chr> <chr> <chr> <chr>
#> 1 tl_bwa /tmp/RtmpqutAFt/file787141e04582… bwa mem biocontainers/bwa:v…
#> 2 tl_bwa_in… /tmp/RtmpqutAFt/file787141e04582… bwa index biocontainers/bwa:v…
#> 3 tl_markdup /tmp/RtmpqutAFt/file787141e04582… picard Mark… quay.io/biocontaine…
#> 4 tl_sam2bam /tmp/RtmpqutAFt/file787141e04582… samtools vi… biocontainers/samto…
#> 5 tl_samtoo… /tmp/RtmpqutAFt/file787141e04582… samtools in… biocontainers/samto…
#> 6 tl_sortBam /tmp/RtmpqutAFt/file787141e04582… samtools so… biocontainers/samto…To load all the tools.
invisible(sapply(tls$rpath, cwlInstall))Next, we define the input parameters.
p1 <- InputParam(id = "threads", type = "int")
p2 <- InputParam(id = "RG", type = "string")
p3 <- InputParam(id = "Ref", type = "string")
p4 <- InputParam(id = "FQ1", type = "File")
p5 <- InputParam(id = "FQ2", type = "File?")Then we define the pipeline steps, from raw fastqs to duplicates marked alignments.
## bwa
s1 <- Step(id = "bwa", run = bwa,
In = list(threads = "threads",
RG = "RG",
Ref = "Ref",
FQ1 = "FQ1",
FQ2 = "FQ2"))
## sam to bam
s2 <- Step(id = "sam2bam", run = sam2bam,
In = list(sam = "bwa/sam"))
## sort bam
s3 <- Step(id = "sortBam", run = sortBam,
In = list(bam = "sam2bam/bam"))
## mark duplicates
s4 <- Step(id = "markdup", run = markdup,
In = list(ibam = "sortBam/sbam",
obam = list(
valueFrom="$(inputs.ibam.nameroot).mdup.bam"),
matrix = list(
valueFrom="$(inputs.ibam.nameroot).markdup.txt")))
## index bam
s5 <- Step(id = "idxBam", run = samtools_index,
In = list(bam = "markdup/mBam"))Last, we define the outputs and connect the steps to a new pipeline.
req1 <- list(class = "StepInputExpressionRequirement")
req2 <- list(class = "InlineJavascriptRequirement")
## outputs
o1 <- OutputParam(id = "Bam", type = "File", outputSource = "markdup/mBam")
o2 <- OutputParam(id = "Idx", type = "File", outputSource = "idxBam/idx")
## stepParam
Align <- cwlStepParam(requirements = list(req1, req2),
inputs = InputParamList(p1, p2, p3, p4, p5),
outputs = OutputParamList(o1, o2))
## build pipeline
Align <- Align + s1 + s2 + s3 + s4 + s5The pipeline is ready for use. We can plot the pipeline with
plotCWL from the Rcwl package.
plotCWL(Align)
#> Warning: The `x` argument of `as_tibble.matrix()` must have unique column names if `.name_repair` is omitted as of tibble 2.0.0.
#> Using compatibility `.name_repair`.
#> This warning is displayed once every 8 hours.
#> Call `lifecycle::last_warnings()` to see where this warning was generated.There are mainly 4 pipelines are collected in this package. Here is a brief introduction to these pipelines. More pipelines and tools are expected to be included in the future.
The pipeline can be used to preprocess DNA sequences in fastq format. It can take paired fastqs, read groups from multiple batches as input.
cwlInstall(rname = "pl_alignMerge", bfc = tools)
inputs(alignMerge)
#> inputs:
#> idBam (string):
#> RG (string[]):
#> threads (int):
#> Ref (File):
#> FQ1s (File[]):
#> FQ2s (File[]):The pipeline includes two steps and several jobs will be run in each step.
bwaAlign: bwa alignment by read groups.runs(runs(alignMerge)[[1]])
#> List of length 4
#> names(4): bwa sam2bam sortBam idxBambwa: To align fastqs and read groups to reference genome with bwa.sam2bam: To convert the alignments in “sam” format to “bam”
format with samtools.sortBam: To sort the “bam” file by coordinates with samtools.idxBam: To index “bam” file with samtools.mergeBamDup: Merge by samples and markduplicates.runs(runs(alignMerge)[[2]])
#> List of length 4
#> names(4): mergeBam markdup samtools_index samtools_flagstatmergeBam: To merge bam files from multiple batches with picard.markdup: To mark duplicates with picard.samtools_index: To index bam file with samtools.samtools_flagstat: To summarize flags in bam with samtools.The final bam files after duplicates marked, bam index, duplicates matrix, and flag statistics summary will be in the output folder.
outputs(alignMerge)
#> outputs:
#> oBam:
#> type: File
#> outputSource: mergeBamDup/oBam
#> matrix:
#> type: File
#> outputSource: mergeBamDup/matrix
#> Idx:
#> type: File
#> outputSource: mergeBamDup/Idx
#> stat:
#> type: File
#> outputSource: mergeBamDup/statHere you can find an example to run the pipeline.
https://hubentu.github.io/others/Rcwl/application.html#dnaseq-alignment-pipeline
The pipeline was built with reads quality summary, STAR alignment,
quantification by featureCounts and RSeQC quality control. Here
are the inputs.
cwlInstall(rname = "pl_rnaseq_Sf", bfc = tools)
inputs(rnaseq_Sf)
#> inputs:
#> in_seqfiles (File[]):
#> in_prefix (string):
#> in_genomeDir (Directory):
#> in_GTFfile (File):
#> in_runThreadN (int): 1The pipeline includes 6 steps.
fastqc: To run quality summary for raw fastqs with fastqc.STAR: To align fastqs with STAR.samtools_index: To index aligned bam file.samtools_flagstat: To summary alignment flags.featureCounts: To quantify gene abundances.RSeQC: Several steps included.gtfToGenePred: To convert GTF annotation to “genePred” format.genePredToBed: To convert “genePred” annotation to “bed” format.r_distribution: To run reads distribution over genome features.gCoverage: To summarize read coverage over gene body.The outputs and logs from alignment, quantification and QC steps are
collected together to the output folder. A final QC report could be
generated by multiqc, which is also available in the data package.
An example to run the pipeline.
https://hubentu.github.io/others/Rcwl/application.html#rnaseq-pipeline
The GATK4 best practice pipeline for germline variant calling was
implemented with Workflow Description Language (WDL). We wrapped the
WDL pipeline into 3 steps with Rcwl. The details of the pipeline can
be find here:
https://software.broadinstitute.org/gatk/best-practices/workflow?id=11145
GAlign GATK alignment.The fastqs, sample information and customized json files for WDL are
required as inputs. Multiple steps will run in this step, including
bwa alignment, mark duplicates and base quality recalibration. GATK
ready BAM files will be collected to the output directory.
hapCall HaplotypeCaller.The GATK ready BAM and customized json files are inputs in this step. The local paths of GATK bundle files are required to be modified in your json file. A “gVCF” files will be generated.
jdCall Joint variant discoveryThis step will combine the “gVCF” files and then call germline variants in all samples. The paths of the local bundle files are also required to be changed in the json template file. The final VCF file of germline variants will be collected.
An example to run the pipeline.
https://hubentu.github.io/others/Rcwl/application.html#gatk4-germline-variant-calling-pipeline
The GATK4 Mutect2 pipeline for germline variant calling was also
available in WDL. The pipeline was reimplemented with Rcwl based on
the best practice documents.
https://software.broadinstitute.org/gatk/best-practices/workflow?id=11146
cwlInstall(rname = "pl_GPoN", bfc = tools)
cwlInstall(rname = "pl_Mutect2PL", bfc = tools)First, we need to run Mutect2 in tumor-only mode for each normal
sample by the tool Mutect2. The argument “–max-mnp-distance 0” is
required to be added because the next step, “GenpmicsDBImport”, can’t
handle MNPs.
arguments(Mutect2) <- list("--max-mnp-distance", "0")
Mutect2
#> class: cwlParam
#> cwlClass: CommandLineTool
#> cwlVersion: v1.0
#> baseCommand: gatk Mutect2
#> requirements:
#> - class: DockerRequirement
#> dockerPull: broadinstitute/gatk:4.1.3.0
#> arguments: --max-mnp-distance 0
#> inputs:
#> tbam (File): -I
#> nbam (File?): -I
#> Ref (File): -R
#> normal (string?): -normal
#> germline (File?): --germline-resource
#> pon (File?): --panel-of-normals
#> interval (File?): -L
#> out (string): -O
#> outputs:
#> vout:
#> type: File
#> secondaryFiles:
#> - .idx
#> - .stats
#> outputBinding:
#> glob: $(inputs.out)This step is to create a GenomicsDB and then combine to a VCF output
for the panel of normals from all the normal Mutect2 calls. A cwl
pipeline GPoN was built to create the panel VCF.
runs(GPoN)
#> List of length 2
#> names(2): GenomicsDB PoNThis pipeline includes two main steps. First we call a large set of
candidate somatic variants, then filter them by estimated
contamination and orientation bias artifacts. We can plot the
Mutect2PL pipeline to show the details.
plotCWL(Mutect2PL)sessionInfo()
#> R version 4.0.2 (2020-06-22)
#> Platform: x86_64-pc-linux-gnu (64-bit)
#> Running under: Ubuntu 18.04.4 LTS
#>
#> Matrix products: default
#> BLAS: /home/biocbuild/bbs-3.11-bioc/R/lib/libRblas.so
#> LAPACK: /home/biocbuild/bbs-3.11-bioc/R/lib/libRlapack.so
#>
#> locale:
#> [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
#> [3] LC_TIME=en_US.UTF-8 LC_COLLATE=C
#> [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
#> [7] LC_PAPER=en_US.UTF-8 LC_NAME=C
#> [9] LC_ADDRESS=C LC_TELEPHONE=C
#> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
#>
#> attached base packages:
#> [1] parallel stats4 stats graphics grDevices utils datasets
#> [8] methods base
#>
#> other attached packages:
#> [1] dplyr_1.0.1 RcwlPipelines_1.4.5 BiocFileCache_1.12.1
#> [4] dbplyr_1.4.4 Rcwl_1.4.8 S4Vectors_0.26.1
#> [7] BiocGenerics_0.34.0 yaml_2.2.1 BiocStyle_2.16.0
#>
#> loaded via a namespace (and not attached):
#> [1] httr_1.4.2 tidyr_1.1.1 bit64_4.0.2
#> [4] jsonlite_1.7.0 R.utils_2.9.2 shiny_1.5.0
#> [7] assertthat_0.2.1 BiocManager_1.30.10 base64url_1.4
#> [10] blob_1.2.1 progress_1.2.2 pillar_1.4.6
#> [13] RSQLite_2.2.0 backports_1.1.8 glue_1.4.1
#> [16] digest_0.6.25 RColorBrewer_1.1-2 promises_1.1.1
#> [19] checkmate_2.0.0 htmltools_0.5.0 httpuv_1.5.4
#> [22] R.oo_1.23.0 pkgconfig_2.0.3 bookdown_0.20
#> [25] DiagrammeR_1.0.6.1 purrr_0.3.4 xtable_1.8-4
#> [28] brew_1.0-6 later_1.1.0.1 BiocParallel_1.22.0
#> [31] tibble_3.0.3 generics_0.0.2 ellipsis_0.3.1
#> [34] withr_2.2.0 cli_2.0.2 magrittr_1.5
#> [37] crayon_1.3.4 mime_0.9 memoise_1.1.0
#> [40] evaluate_0.14 R.methodsS3_1.8.0 fansi_0.4.1
#> [43] tools_4.0.2 data.table_1.13.0 prettyunits_1.1.1
#> [46] hms_0.5.3 lifecycle_0.2.0 stringr_1.4.0
#> [49] compiler_4.0.2 rlang_0.4.7 debugme_1.1.0
#> [52] rstudioapi_0.11 rappdirs_0.3.1 htmlwidgets_1.5.1
#> [55] visNetwork_2.0.9 igraph_1.2.5 rmarkdown_2.3
#> [58] codetools_0.2-16 DBI_1.1.0 curl_4.3
#> [61] R6_2.4.1 knitr_1.29 fastmap_1.0.1
#> [64] bit_4.0.4 utf8_1.1.4 stringi_1.4.6
#> [67] Rcpp_1.0.5 vctrs_0.3.2 batchtools_0.9.13
#> [70] tidyselect_1.1.0 xfun_0.16