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PlayAssembly

Basic commands

Create reads file from random genome with sim_reads

sim_reads --depth 50 --read_length 100 random.fa ecoli.100bp.50x.fa

Create reads file from E.coli genome

sim_reads --depth 50 --read_length 100 ecoli.fa ecoli.100bp.50x.fa

Correct a read file, output a file *_corrected.fasta

Bloocoo -file readrandom.fasta

Assemble a read file

minia -in readrandom.fasta

Assemble a read file with custom k

minia -in readrandom_corrected.fasta -kmer-size 63

Evaluate the assembly

n50 nadine.contigs.fa

Try assembly

Compare the E. coli assembly with the random sequence

Compare an E. coli assembly with and without correction

How the N50 change according to K (k=21,k=31,k=41 etc) ? (R Plot would be nice)

What is the best assembly you can obtain with and without correction, which kmer size did you use ? (ntcard can help you)

What happens with longer reads (250 bp) ?

What happens with a higher (or lower) error rate ?

Try to map the contigs on the reference genome using BWA

Try to assemble other genome from NCBI https://www.ncbi.nlm.nih.gov/genome/browse/