-------- Original Message -------- Subject: phylogenetic signal Date: Tue, 1 Feb 2011 19:07:40 -0500 From: Lucilia Souza Miranda <[email protected]> To: [email protected] Hi, My name is Lucilia Miranda, and I am starting my studies on geometric morphometrics. I write because I have some doubts about phylogenetic signal, and I would like to know if someone, could, please, help me. I am interested in the evolution of 3 structures. I want to check the phylogenetic signal of them, and I've started using MorphoJ. The results showed me that there is a significant signal. However, it seems that when I use these structures together, the results are even stronger. So I was wondering if there is any way to check this strength (separate structures X all structures). I've tried to verify the level of homoplasy (Klingenberg & Gidaskewski, 2010) but I didn’t understand the input matrix of the software “FindSteinerTree”, suggested by the authors (I have 3 structures, with 4 landmarks, of 20 species, and 10 specimens for each species). I also would like to know how to obtain the minimal-length tree, as showed by Klingenberg & Gidaskewski (2010), fig. 8, using MorphoJ, because I want to compare the minimal trees of the different datasets. I am sorry, I have a lot of questions, but I will be very grateful if someone could help me. Thank you so much! Best wishes, Lucilia [email protected] <mailto:[email protected]>
