Systematists have access to multiple sources of character information in phylogenetic analysis. For example, it is not unusual to have nucleotide sequences from several different genes, or to have molecular and morphological data. How should diverse data be analyzed in phylogenetic analysis? Several methods have been proposed for the treatment of partitioned data: the total evidence, separate a...

A phylogenetic tree represents the evolutionary history for a collection of organisms. We consider the problem of inferring such a tree given a certain set of data (genomic, proteomic, or even morphological). Given the computational hardness of this problem, exact approaches are inherently limited. However, exact techniques can still be useful to endow heuristic approaches with problem-awarenes...

Phylogenetic approaches are finding more and more applications outside the field of biology. Astrophysics is no exception since an overwhelming amount of multivariate data has appeared in the last twenty years or so. In particular, the diversification of galaxies throughout the evolution of the Universe quite naturally invokes phylogenetic approaches. We have demonstrated that Maximum Parsimony...

background: the trematodes of the genus fasciola (the liver flukes) are among the well-known instances of food-borne parasites worldwide. differentiation of fasciola species is important because of their different transmission and epidemio-logical characteristics. the current study was undertaken to discriminate fasciola species in the domestic ruminants of urmia city, iran. methods: adult fluk...

Despite many developed experimental and computational approaches, functional gene annotation remains challenging. With the rapidly growing number of sequenced genomes, the concept of phylogenetic profiling, which predicts functional links between genes that share a common co-occurrence pattern across different genomes, has gained renewed attention as it promises to annotate gene functions based...

For the planning of large infrastructure projects, such as tunnelled inner-city carriageways, completely different scales have to be considered – ranging from the scale of several kilometres for the general routing of the carriageway down to centimetre scale for the detailed planning of track nodes. However, today’s planning software hardly supports multi-scale approaches. The paper presents a ...