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Are those multiple blast hits discrete (when you look at the co-ordinates) or are they overlapping (you may be looking at multiple HSP in that case). If you expect only one copy of the gene then the hit with 100% homology may be the full length gene and others may be for domains that are shared by other genes. -
Is this something I can verify?
There's only one copy of it annotated via Prokka, but I'm not sure if this would necessarily annotate multiple copies of the same gene.Leave a comment:
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There may be multiple copies of the gene(s) in the genome at different locations. Some of the "hits" could be to similar domains, if they are not full length.Leave a comment:
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Multiple blast hits in single genome - what could be the cause
Hello,
I am searching a database of genomes for specific genes using BLAST.
In one genome of interest there are several BLAST hits with strong e-values - one with 100% homology to the query sequence.
I'm just trying to figure out what the cause could be; recombination or LGT? Processing error?
Thanks,
Pete
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