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This tutorial assumes that you have created the paths $WORK/src and $HOME/local/bin and added $HOME/local/bin to your {$PATH}.

Code Block
login1$ module load git
login1$ mkdir -p $WORK/src && cd $WORK/src
login1$ git clone --recursive git://github.com/ekg/freebayes.git
login1$ cd freebayes
login1$ module load cmake
login1$ module load gcc
login1$ make
login1$ mv bin/* $HOME/local/bin

This command from the instructions attempts to install to a system-wide location as super-user.:

Code Block
sudo make install

This won't work on Lonestar! (You aren't an admin.) However, the make command created the executables inside of the source tree, so we can find and move them to our standard $HOME/local/bin directory with the last command.

Use 20K mixed population data from LTEE.

Example 1: Mixed

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E. coli population

A mixed population of E. coli from an evolution experiment was sequenced at several different time points (PMID:19776167).

Data

The data for this example are in the path:

Code Block

/corral-repl/utexas/BioITeam/ngs_course/FreeBayes/ecoli_mixed

File Name

Description

SRR032374.fastq.gz

Illumina reads, 20K generation mixed population

SRR032376.fastq.gz

Illumina reads, 40K generation mixed population

NC_012967.1.fasta.gz

E. coli B str. REL606 genome

The read files were downloaded from the ENA SRA study.

The reference genome file was downloaded from the NCBI Genomes page

Map Reads

Choose an appropriate program, map the reads, and convert the mapped reads to BAM format.

Run FreeBayes

Example 2: Diploid genome