Path: utzoo!attcan!uunet!munnari.oz.au!bruce!lloyd
From: lloyd@bruce.OZ (lloyd allison)
Newsgroups: bionet.molbio.evolution
Subject: Re: How to compare trees
Message-ID: <1950@bruce.OZ>
Date: 19 Mar 90 00:32:04 GMT
References: <3067.2602a4ec@bmc.uu.se>
Organization: Monash Uni. Computer Science, Australia
Lines: 20

Mats.Sundvall@bmc.uu.se writes:


>Does somebody out there have some comments on how to compare evolutionary
>trees calculated by maximum parsimony algorithms. If I generate one

The best approach I know of as yet is the maximum likelihood method
of Joseph Felsenstein  Dept of Genetics, Uni of Washington, Seattle
eg "Inferring Evolutionary Trees from DNA Structures"
   Statistical Analysis of DNA Sequence Data
   (ed) B. S. Weir,   Marcel Dekker inc  1983  p133-150
This has excellent statistical validity.
It may not be practical if your tree is very big.

JF distributes a package containing several tree building methods
for free.  This includes a parsimony method and a M.L. method.

Lloyd Allison, Computer Science, Monash University, AUSTRALIA 3168

zzz