Welcome to the sourmash examples site!

This is a collection of examples and recipes for the sourmash software, for fast genomic and metagenomic sequencing data analysis.

sourmash can quickly search genomes and metagenomes for matches; see our list of available search databases.

sourmash also supports taxonomic exploration and classification for genomes and metagenomes with the NCBI and GTDB taxonomies.

The paper Large-scale sequence comparisons with sourmash (Pierce et al., 2019) gives an overview of what sourmash does and how sourmash works.

Do you have questions or comments? File an issue or come chat on gitter!

Start here!

Example: install sourmash

Example: create a signature by downloading and sketching a genome sequence

Example: download and search 66,000 GTDB genomes with a query genome

Example: create a metagenome signature from shotgun sequencing reads

Example: analyze a metagenome using 66,000 GTDB genomic representatives


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