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Jeffrey Barrick edited this page Oct 25, 2022 · 5 revisions

LTEE-Ecoli

Genomics resources for the long-term evolution experiment with Escherichia coli.

For related information and data, see also:

Web Interface

If you would like to browse mutations in specific strains or genes on the web, there is an interactive interface to the LTEE genomics data here: http://barricklab.org/shiny/LTEE-Ecoli/

Repository Contents

To get started with using these data files for an analysis, download a release version of the repository.

LTEE-clone-curated

Lists of mutations in clonal isolates from the long-term evolution experiment in GenomeDiff format. This format is described in the breseq documentation.

MAE-clone-curated

Lists of mutations in clonal isolates from the mutation accumulation evolution experiment in GenomeDiff format. This format is described in the breseq documentation.

summary

Output of mutation counts, phylogenetic trees, etc. generated from the curated GenomeDiff files. Counts in these files reflect removing mutations in repetitive regions (masked files) and/or mutational hotspots adjacent to IS elements (no_IS_adjacent files).

bin

Scripts used for performing curation and generating summary output files.

Examples of using these files

Important: Install a version of breseq that is compatible with the version of the LTEE-Ecoli files that you are using (as specified for the release that you downloaded) AND run these commands from the main LTEE-Ecoli path.

Generate summary output

This command generates files giving counts of different mutations, phylogenetic trees for each population, HTML tables showing mutations in each population, etc. These all appear in the summary directory.

bash bin/summary.sh

Generate a FASTA file of a specific evolved genome

mkdir -p fasta
gdtools APPLY -f FASTA -r reference/REL606.gbk -o fasta/Ara-1_20000gen_8593A.fna LTEE-clone-curated/Ara-1_20000gen_8593A.gd

Generate a FASTA file of all LTEE genomes

mkdir -p fasta
cd LTEE-clone-curated; ../bin/batch_run.pl -0 "gdtools APPLY -f FASTA -r ../reference/REL606.gbk -o ../fasta/#e.fna #d"