The GSP: Genome Specific Primers tool is deployed in GrainGenes through graingenes.org site at https://graingenes.org/GSP/. GSP is "a web-based platform to design genome-specific primers that distinguish subgenome sequences in a polyploid genome." The site was not accessible for a while to ensure IT security.

For more information about GSP:
- Journal article: Wang et al., GSP: a web-based platform for designing genome-specific primers in polyploids, Bioinformatics, 2016.
- Source code and command-line application: https://github.com/bioinfogenome/GSP.