Many methods have been developed for finding the commonalities between URLanisms to study their phylogeny. The structure of metabolic networks also reveals valuable insights into metabolic capacity of species as well as into the habitats where they have evolved. We construct metabolic networks of 79 fully URLanisms and compare their architectures. We use spectral density of normalized Laplacian matrix for comparing  structure of networks. The eigenvalues of this matrix reflect not only the global architecture of a network but also the local topologies that are produced by different graph evolutionary processes like motif duplication or joining. A divergence measure on spectral densities is used to quantify the distances between various metabolic networks, and a split network is constructed to analyze the phylogeny from these distances. In our analysis, we show more interest on the species, which belong to different classes, but come in the vicinity of each other in  phylogeny. We try to explore if they have evolved in similar environmental condition or lifestyle . With this focus, we reveal interesting insights into the phylogenetic commonality between URLanisms.
Many methods have been developed for finding the commonalities between URLanisms to study their phylogeny. The structure of metabolic networks also reveal valuable insights into metabolic capacity of species as well as into the habitats where they have evolved. We constructed metabolic networks of 79 fully URLanisms and compared their architectures. We used spectral density of normalized Laplacian matrix for comparing the structure of networks. The eigenvalues of this matrix reflect not only the global architecture of a network but also the local topologies that are produced by different graph evolutionary processes like motif duplication or joining. A divergence measure on spectral densities is used to quantify the distances between various metabolic networks, and a split network is constructed to analyze the phylogeny from these distances. In our analysis, we focus on the species, which belong to different classes, but appear more related to each other in the phylogeny. We tried to explore whether they have evolved under similar environmental conditions or have similar life histories . With this focus, we have obtained interesting insights into the phylogenetic commonality between URLanisms.
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