[Mesquitelist] Calculating sum of branch lengths for clades

[Jon Bråte]

Dear all,

I am trying to calculate total branch lengths within different clades  
in a tree. Preferably also accounting for the number of taxa in each  
clade. I installed the Tuatara package for Mesquite in order to try  
the "Total Phylogenetic Diversity" option, but I cannot find or use  
this option.
Can anybody help me with this?

Thank you,

Jon

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Jon Bråte
PhD student

Microbial Evolution Research Group (MERG)
Department of Biology
University of Oslo
P.b. 1066 Blindern
N-0316 Oslo
Norway
Phone: +47 22855083