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A basic pipeline for quantification of genomic features from short read data
implemented with Nextflow.
Requirements
Unix-like operating system (Linux, macOS, etc)
Java 11
Quickstart
If you don't have it already install Docker in your computer. Read more here.
Install Nextflow (version 23.10.0 or later):
curl -s https://get.nextflow.io | bash
Launch the pipeline execution:
./nextflow run nextflow-io/rnaseq-nf -with-docker
When the execution completes open in your browser the report generated at the following path:
results/multiqc_report.html
You can see an example report at the following link.
Note: the very first time you execute it, it will take a few minutes to download the pipeline
from this GitHub repository and the associated Docker images needed to execute the pipeline.
Pipeline flowchart
Here is a visual representation of the design of RNASeq-NF pipeline, generated using the visualization functionality of Nextflow.
RNASeq-NF execution relies on Nextflow framework which provides an
abstraction between the pipeline functional logic and the underlying processing system.
This allows the execution of the pipeline in a single computer or in a HPC cluster without modifying it.
Currently the following resource manager platforms are supported:
Univa Grid Engine (UGE)
Platform LSF
SLURM
PBS/Torque
By default the pipeline is parallelized by spawning multiple threads in the machine where the script is launched.
To submit the execution to a UGE cluster create a file named nextflow.config in the directory
where the pipeline is going to be executed with the following content:
process {
executor='uge'
queue='<queue name>'
}
To lean more about the avaible settings and the configuration file read the
Nextflow documentation.
Components
RNASeq-NF uses the following software components and tools: