منابع مشابه
Phylogenetic analysis.
Phylogenetics is the study of evolutionary relationships. Phylogenetic analysis is the means of inferring or estimating these relationships. The evolutionary history inferred from phylogenetic analysis is usually depicted as branching, treelike diagrams that represent an estimated pedigree of the inherited relationships among molecules (''gene trees''), organisms, or both. Phylogenetics is some...
متن کاملPhylogenetic analysis
During the past few decades, phylogenetic analysis has become an important tool throughout biology for comparing information about genes, individuals, populations, and species. This information is usually in the form of morphological, behavioral or molecular data, and phylogenetic analysis is used to estimate the historical relationships among the genes or species, and to depict these relations...
متن کاملPhylogenetic analysis of Escherichia coli strains isolated from human samples
Escherichia coli (E. coli) is a normal inhabitant of the gastrointestinal tract of vertebrates, including humans. Phylogenetic analysis has shown that E. coli is composed of four main phylogenetic groups (A, B1, B2 and D). Group A and B1 are generally associated with commensals, whereas group B2 is associated with extra-intestinal pathotypes. Most enteropathogenic isolates, however, are assigne...
متن کاملJumpstarting phylogenetic analysis
Phylogenetic analysis is a central tool in studies of comparative genomics. When a new region of DNA is isolated and sequenced, researchers are often forced to throw away months of computation on an existing phylogeny of homologous sequences in order to incorporate this new sequence. The previously constructed trees are often discarded, and the researcher begins the search again from scratch. T...
متن کاملPhylogenetic Sequence Analysis
The aim of this handout is to present you with some theoretical background that might be helpful for building phylogenetic trees. This handout also provides an step-by-step example of how to build a phylogenetic tree 1 .
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ژورنال
عنوان ژورنال: Current Biology
سال: 1997
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(97)70070-8