short reads Assembly in contigs

Question

[midox]

Hello,

I made assembling illumina short reads of size 2 * 300bp and I used Velvet. After the assembly, I got contigs with size less than the initial reads. Is it normal?

Thanks for your help

[sentausa]

How did you know that you have contigs with size less than 300 bp?

[midox]

I opened the file contigs and I went through the different sequences.
do you have a solution ?

Answer 1

[Brian Bushnell]

Yes, it is normal. What you do with short contigs depends on your project; sometimes people throw them away, and sometimes they are useful.