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Casey Dunn committed 19c99bb

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 - The cat+gtr phylobayes analyses of the genome matrices and the est matrices show no sign of converging (`maxdiff` is 1), but in all cases that have been evaluated the rooting of the preliminary cat+gtr trees is congruent with the rooting of the corresponding trees inferred under the cat model. This provides no indication of incongruence between the trees recovered under the cat model and the more complex cat+gtr model.
 
-- The novel Ctenophora+Porifera clade obtained in cat and cat+gtr analyses of the genome matrices is strongly rejected by the gene content data, according to the SOWH test.
+- The rooting of genome analyses is sensitive to both model selection (cat vs. cat+gtr) and outgroup selection. The novel Ctenophora+Porifera clade obtained in some cat and cat+gtr analyses of the genome matrices is strongly rejected by the gene content data, according to the SOWH test.
 
 - Analyses of a reduced taxon Opisthokonta EST matrix do converge under the cat model. This analysis, like the non-convergent cat+gtr analyses of the full EST matrices, place Ctenophora as the sister group to all other animals.