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Article #423

Re: estimating branch length - phylip

#423
From: Mary K. Kuhner
Date: Thu, 22 Feb 2007 20:33
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In article <mailman.59.1172114161.5139.mol-evol@net.bio.net>,
npriya <npriyarao@gmail.com> wrote:

>I constructed a max likelihood tree (dnaml) after using seqboot (500
>bootstraps) and then performed a consense to get a final tree. The
>tree looks fine but ofcourse it does not display branch lengths
>(rather it displays bootstrap values).

>So I took this tree, used retree to unroot and eliminate the bootstrap
>values. I called this "intree". Now when I use the dnaml again with
>the user tree option on the "intree" i am consistently getting an
>error message which states that there is insufficient memory. I
>understand that this problem is due to a badfile format but I don't
>understand what could be wrong with my file.

The user tree analysis needs both an intree and an infile containing
the original sequence data.  A very common error in Phylip is to
have the wrong stuff in your infile--perhaps something left over
from seqboot?

The procedure you describe should work, so I suspect you have, as you
say, a file problem--but I think it's likely in infile, not intree.
Your tree looks okay to me.

Mary Kuhner mkkuhner@u.washington.edu
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From: mkkuhner@kingman.gs.washington.edu (Mary K. Kuhner)
Newsgroups: bionet.molbio.evolution
Subject: Re: estimating branch length - phylip
Date: Thu, 22 Feb 2007 20:33:19 +0000 (UTC)
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