How to draw a tree from BLAST toolkit output

Question

[Paul]

Hi I have performed BLAST analysis using command line

blastn -db myDb -query gene.fasta

for which the alignment file is in BLAST format.

Is there any way I can take BLAST output to draw a Phylogeny?

[st.ph.n]

You'll need to extract the sequences you want to put on the tree based on your blast results, and do a multi-sequence alignment, with something such as clustal. From that alignment you can create your tree. There are many options to get a tree, but if you're looking for a GUI, MEGA is a good one.