Tree congruence

If the principal node K is an endpoint, the planted tree consists of a , the root and the stem, which connects these two points. There are no vertices of degree 4, there are no principal branches. There are no two noncongruent planted trees of this type, whether we deal with topological, spatial, or planar congruence. Hence... 

According to the nature of the congruence, topological, spatial, or planar, the generating functions of the planted C-H trees are given by... 

Paquin B, Forget L, Roewer I, Lang BF (1995) Molecular phylogeny of Allomyces macrog-ynus—congruency between nuclear ribosomal RNA and mitochondrial protein-based trees. J Mol Evol 41 657-665... 

Martinez-Murcia, A.J., Harland, N.M., and Collins, M.D. 1993. Phylogenetic analysis of some leuconostocs and related organisms as determined from large-subunit rRNA gene sequences assessment of congruence of small- and large-subunit rRNA derived trees. J. Appl. Bacteriol. 74, 532-541. 

The problem arises when attempting to statistically evaluate the degree of congruence between trees from different data sets. Among several formal methods which have been developed, we used the Mantel test (1967). This is a non parametric procedure, based on randomization, which generates statistical sign ificance levels for correlational measures of similarity between distance matrices. We selected this... 

Congruence suggests that this character is a homology because it fits the most parsimonious tree. 

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