decay indices

Mark Dowton mark_dowton at
Fri Mar 1 05:26:24 EST 1996

Dear Nico,

As far as I know, the original article describing decay indices was by
Bremer (1988)  The limits of amino acid sequence data in angiosperm
phylogenetic reconstruction.  Evolution 42:795-803.  However, I'm not sure
whether the author actually called them decay indices, but the idea is the

You can calculate them within PAUP by searching for the shortest trees, but
constrained not to include the node in question.

Cheers, Mark Dowton
Dept Biology
Wollongong University
Wollongong  2522

In article <4gfguh$jcv at>, "Nicolas Chalwatzis, MIPS"
<CHALWATZIS at> wrote:

> Dear Netters,
> I have the following questions:
> - which paper describes the use of "decay indices" for the evaluation of the
>   robustness of a phylogenetic tree (constructed from an alignment of 
>   nucleotide sequences) ?
> - what programs are available for the calculation of decay indices ?
> Best wishes and many thanks in advance,
> Nico Chalwatzis
> e-mail: chalwatzis at

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