testing if seqs are in same phylo. tree?

[slamovic at rocbi.DNET.roche.com]

In article, Kent said:

Kent> He has developed fast computer algorithms for determining
Kent> whether observed sequence similarities are greater than might be
Kent> expected by chance. I think W. Ford Doolittle has proposed similar

Kent> Kent E. Holsinger       

I think it wouldn't be the proper way because David's genes may be paralogous
rather than just convergents, and paralogous genes should have greater seq
similarity than the expected by chance.

Claudio