How best to pick kmer's for spades assembly?
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4.0 years ago

I am wanting to de novo assemble an illinima sequences isolate at 150bp with Spades.

After QCing with bbtools my sequence length distribution has predictably changed to have a range of 10-150. Do I base my kmer choice on original read length or must I adjust for these not shorter reads.

Initially I planed to run at kmers of 55 77 99 127.

See full read length distribution here

Assembly • 2.8k views
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Let SPAdes do the picking automatically, to being with.

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Does the auto pick run at multiple kmers and then merge the assemblies? That is (as I understand it?) what manually picking specific kmers does?

Answered my own question, it does this by default so auto select seems the best.

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This thread is likely of interest.

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That is where I got my answer :)

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