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[Molecular-evolution] Help with phylogenetic tree construction

Trond Erik Vee Aune via mol-evol%40net.bio.net (by trondaun from nt.ntnu.no)
Tue Mar 25 16:18:57 EST 2008


What I would like to to is to generate a phylogenetic tree based on 16s 
sequences from 30 different bacteria plotted onto a larger tree showing 
selected organisms from different prominent phyla. The idea is to 
display the relationship between my 30 organisms AND how they relate to 
the rest of the prokaryotes.

I used to this sort of thing by downloading each sequence from NCBI and 
then align them and generate a phylogenetic tree in ClustalW or some 
other software. I hope there exist some internet tools now that can do 
it all for me, i.e. that I just select the species/strains and the 
software retrives the sequences, aligns them and creates the tree 
according to mye criteria. Do you know of any such sequences or do 
people still do these kind of things "by hand"?

Trond Erik

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